Live! - IC Packaging - EEs Talk Tech Electrical Engineering Podcast #37 Keysight Podcasts 2019-03-13 | ASIC/integrated circuit packaging! - sorry for glitchy audio :(Subscribe ► http://bit.ly/KeysPodcastSub ◄Pics: eestalktech.com/ic-packagingThanks for tuning in, check the comments for time tags & a description or go to:http://www.eestalktech.com
Source De[Code] Season 1 Trailer Keysight Podcasts 2024-04-02 | Source Decode is your magic decoder ring to demystify the jargon surrounding the technology industry. We’ll take a crack at the biggest and most used buzz words in the world of tech and figure out exactly what it is, how it’s being used, and what the big deal is all about.
Experts Explain V2G (Vehicle to Grid) Tech Keysight Podcasts 2024-02-16 | All about V2G from the people writing the spec!Sign up for the EV Lab Tour ► https://keysig.ht/tqFPc7Keysight V2G overview: keysight.com/us/en/cmp/2023/electric-vehicle-to-grid-innovation.htmlElectric power grids are already struggling with rising costs, declining reliability, and seasonal outages. The growing demand from electric vehicles (EVs) and other technologies that require electricity could increase the load on our power grids by up to 38% by 2050.Increasing grid capacity is not feasible, but we can make them smarter. Adding more local power sources and enabling grids to communicate with and pull power from these distributed energy resources (DERs) will help relieve some of the pressure.EVs with vehicle-to-grid (V2G) technology are gaining momentum as a promising solution for generating the electricity needed to power mass EV adoption and fast charging. Some experts predict dealerships will carry numerous EV makes and models with V2G technology by 2024.EVs spend most of their time parked—all the while storing enough energy to power a household for three days. Using bidirectional power flow, V2G-enabled EVs can return some of that electricity to the grid during peak usage. Many experts see V2G technology as the next frontier for EVs, but transforming battery packs into energy sources for the grid requires extensive conformance testing of interconnection, communication, and power flow.Utilities, automakers, and charging infrastructure organizations must collaborate to define new standards and regulations to make EVs a viable power source for the grid.Currently, each group operates independently, which creates a lot of complexity and inefficiency. Utility companies manage local power grids and enforce the rules and standard test requirements for DERs, such as EVs. Additionally, the various global EV charging standards make it difficult for EV and EVSE manufacturers to ensure global compliance of interconnection with the local grid.Overcoming these challenges will require all stakeholders to work together to ensure that EVs can be safely integrated into the grid and play a more significant role in supporting the grid's reliability and resilience. Interoperability and standardization are essential for successfully transitioning to a grid-connected EV ecosystem.The EV ecosystem is becoming more dynamic and complex, and we expect things to evolve quickly in the coming years. A lot can happen in the two to five years it takes to bring a new model to market, from new standards and technological capabilities to changing consumer expectations. So, how can you protect your investment and ensure that the car or charging station you're building today meets the requirements of tomorrow?Doing more testing in a virtual environment gives you more flexibility. Keysight bridges the gap between your EV or EVSE and your local grid by bringing real-world conformance testing into the lab. Using true-to-life emulations, you can run extensive testing against the latest standards, protocols, and realistic scenarios. We also participate in developing power, EV, and EVSE standards to ensure our emulations and test cases conform to upcoming standards and trends across the ecosystem.Keysight empowers automakers and charging station companies to accelerate EV development and deployment. Our design, emulation, and validation solutions help you overcome the EV industry's toughest engineering challenges, from extending battery range and improving power conversion to delivering faster, more reliable charging.Keysight's industry-leading emulation solutions bring the entire EV ecosystem into the lab, providing system-level insights about how your vehicle and charger will perform in real-world scenarios, extreme environmental conditions, and against the latest industry standards.#V2G #VehicletoGrid #electricvehicle #EVs #EV #EVCharging #EVCharge #V2G #Vehicletohome #v2h #TeslaCharging #electricvehicles
What is the Metaverse Anyway? Keysight Podcasts 2023-03-09 | Join our mailing list and win a Source De[Code] hoodie! Limited to US and Canada, join here: connectlp.keysight.com/LP=40444 It’s the season finale of Source De[Code] and we have a very special Metaverse spectacular! Join Ben as he tries to figure out what all the hype is about by talking to three past guests: Sarah LaSelva, […]
How to Put Big Data to Use Keysight Podcasts 2023-03-02 | Join our mailing list here: connectlp.keysight.com/LP=40444 This week on Source De[Code], Ben gets into the biggest data of them all with guest Toby Marsden, Eggplant Global Alliances Leader at Keysight, to talk about how enterprise data gets to the right place and delivers usable results. Ben and Toby about the data storage itself, knowing where […]
Manufacturing the Future with Big Data Keysight Podcasts 2023-02-23 | Join our mailing list here: connectlp.keysight.com/LP=40444 Dive into the world of manufacturing and the processes of production as Ben and guest Derek Ong dig into how big data gives you super powers. You heard that right, super powers! Use big data to move forward and backward in time and see things you never though possible […]
Your EV’s Battery is Built on Data Keysight Podcasts 2023-02-16 | JOIN OUR MAILING LIST and win Source De[Code] swag! This week on Source De[Code], Ben chats with Albert Groebmeyer about the value of data and its impact on electric vehicle battery design. Together Ben and Albert break down why data matters and is invaluable as a currency of trust with consumers. For all things Source […]
A Digital Twin at the Wheel Keysight Podcasts 2023-02-09 | Join our mailing list here: keysight.com/find/sourcedecode This week on Source De[Code], Ben sits down with Dr. Silviu-Sorin Tuca to get into how digital twins are being used by automakers to build safer, smarter vehicles. Tune in and hear how drive testing for vehicular radar is transforming with emulation and digital twin technology. For more decoding […]
Digital Twins Turn ‘What If’ Into ‘What Is’ Keysight Podcasts 2023-01-26 | Head to keysight.com/find/sourcedecode to get all the latest from Source De[Code]! In this week’s episode, Ben sits down with Dr. Ian Rippke to talk about how the world of modeling and simulating circuits has transformed with the advent of digital twins. They get into what makes a digital twin a digital twin, and break down […]
The Digital Twin Network of Tomorrow Keysight Podcasts 2023-01-19 | Find us here: www.keysight.com/find/sourcedecode Kicking off the first episode in our series on Digital Twins, Ben sits down with Dr. Rajive Bagrodia, Chief Technologist for Digital Twins at Keysight. Ben and Rajive talk about where digital twins come from, how much information they need to immerse a system, and where digital twins might re-define the […]
How Do You Teach A Machine? Keysight Podcasts 2023-01-12 | In the third part of our series on artificial intelligence, Ben sits down with AI-expert Jonathon Wright, Chief Technology Evangelist from Keysight to talk about what the process of getting a good, functional AI looks like. They discuss the difference between software and AI, and how a simple task requires substantial testing to get things […]
How Does AI Make Your Cell Service Better? Keysight Podcasts 2023-01-12 | This week on Source De[Code], Ben talks to Sarah LaSelva, Director of 6G Marketing at Keysight about how artificial intelligence is making it’s way into the world of wireless communications. They talk about the current paradigms of AI used for managing networks and traffic, and what the future might hold for designing communication systems with […]
Measurement Overkill and Why Accuracy is the Wrong Word - Metrology Podcast - #42 Keysight Podcasts 2020-05-20 | Metrologists share examples of measurement overkill to celebrate World Metrology Day Take a FREE Keysight University test gear course: bit.ly/KeysUPodcastSubscribe ► http://bit.ly/KeysPodcastSub ◄App note mentioned by Bob:bit.ly/DecisionRulesMore about Keysight metrology, calibration, and services: keysight.com/find/metrologyMore podcasts at eestalktech.comPodcast subscription links:iTunes:podcasts.apple.com/us/podcast/ees-talk-tech-an-electrical-engineering-podcast/id1238385165Spotify:open.spotify.com/show/4j9CG7Z1iy9zkjnOSVHB6fGoogle:podcasts.google.com/?feed=aHR0cHM6Ly9lZXN0YWxrdGVjaC5jb20vZmVlZC9wb2RjYXN0&hl=enStitcher:stitcher.com/podcast/keysight-technologies/ees-talk-techRSS:eestalktech.com/feed/podcast/ees-talk-techTopics and time tags:0:00World metrology day, and a brief history of the meter and the ohm2:00Keysight University has FREE test gear courses!2:45Bob Stern, Keysight MetrologistChris Cox, Keysight Regional Metrologist4:30Why does metrology matter? How does it impact us? The global economy relies on a consistency of measurement and test, which is why metrology is important. It allows measurements made in one country to be used and replicated in other countries.7:25Metrology and measurement traceability is important. An unbroken chain of traceability is one of the key components of metrology and calibration. It's a bit like a game of telephone leading back to SI units.10:00Keysight DMMs get calibrated off the first commercially available Josephson Junction - a tool that uses quantum physics to provide a very stable voltage.11:16Accuracy vs. Measurement UncertaintyA production engineer might say "accuracy" but really it's all about "measurement uncertainty"Vocabulary of international metrology (VIM): bipm.org/en/publications/guides/vim.html12:15A practical example of how different instruments have different levels of uncertainty13:45What's the significance of measurement uncertainty for a user of test gear or a production engineer?15:33The internal adjustments that the factory makes to an instrument are some of the most closely guarded intellectual property / trade secrets.18:15The Army uses mobile Josephson junctions to test the DMMs used in Apache helicopter field testing.18:45Metrology overkills - times when people went overboard with their measurement uncertainty21:10How do you quantify measurement uncertainty? There's "test uncertainty ratio" which uses your expanded measurement uncertainty.23:00You can also get to percent risk, which is easy to wrap your head around. Bob Stern and Chris Cox authored some papers on this topic.24:00Why do people make measurements in the first place? There are no perfect measurements26:45Metrology in the government/military vs. private sector29:00There are a lot of factors for metrology equipment calibration and the engineering metrology equipment. There are different "levels" of calibration and different depth of reporting#electricalengineeringpodcast #engineeringpocast #electronicspodcast #keysightpodcast #computerengineeringpodcast #podcast #metrology #metrologist #engineeringmetrology #measurementtraceability #metrologycalibrationservices #manufacturingmetrology #metrologyandmeasurements #metrologyequipment
Life Lessons from electroBOOM! - DONT PLAY WITH HIGH VOLTAGE! (Mehdi Sadaghdar Interview) - #41 Keysight Podcasts 2019-12-12 | That time he almost died & more! [interview]...Learn 5G everything: keysight.com/find/LEARN5GSubscribe to this channel ► http://bit.ly/KeysPodcastSub ◄ That time Mehdi almost died on camera, science & tech on YouTube, 50 takes of the same scene, and more life advice from Mehdi Sadaghdar, aka electroBOOM! Join Mehdi and Daniel Bogdanoff in an random park in downtown New York City in this electrical engineering podcast episode.More at eestalktech.comMehdi is awesome! Check out the electroBOOM channel:youtube.com/electroBOOM Podcast subscription links: iTunes: podcasts.apple.com/us/podcast/ees-talk-tech-an-electrical-engineering-podcast/id1238385165 Spotify: open.spotify.com/show/4j9CG7Z1iy9zkjnOSVHB6f Google: podcasts.google.com/?feed=aHR0cHM6Ly9lZXN0YWxrdGVjaC5jb20vZmVlZC9wb2RjYXN0&hl=en Stitcher: stitcher.com/podcast/keysight-technologies/ees-talk-tech RSS: eestalktech.com/feed/podcast/ees-talk-tech1:00 Mehdi gives away tools to people that actually need it 1:30 electroBOOM is bringing electronics and electrical engineering to the mainstream Science channels are really growing on YouTube 2:55 How much does Mehdi prepare for his videos? 3:30 Most of Mehdi's mistakes and explosions are planned and scripted 4:30 The comment section is always interesting 5:10 Mehdi has a Master's Degree in Electrical Engineering 6:00 He doesn't have a very good pain tolerance 6:40 He has a hard time keeping a straight face when something's coming in the video 7:00 Jacob's Ladder project - he almost died and learned that he should not be a mechanical engineer "I would be dead if it wasn't for my flimsy wiring..." 8:40 Before he became a full time YouTuber he worked doing electronics for a boating steering and control company 9:50 Mehdi got his undergrad degree in Iran, Master's in Canada 10:00 How Mehdi got into electronics - one of his relatives got him an electronics kit as a kid and he loved it 10:40 electroBOOM is not as good of a channel name as his daughter's channel, electroCUTE 11:40 Mehdi works really hard on his videos Most underrated joke: "I don't have a very long term memory" 12:25 Mehdi's wife didn't used to like his videos, she thought they were boring. But, she's since come around 13:30 Watches PewDiePie and lots of science channels 14:40 Mehdi and "Mr. Tripod" do all his production work 16:20 The content is what matters, it's not about the production value 17:10 Every paragraph that he reads, he tries it 10 - 50 times so that it comes out straight. Usually it's just the last take that he keeps 17:40 Is it "recording" or "taping"? Can you still say "taping?" 18:10 Batteries can explode in beautiful ways 18:45 what other good science channels do you recommend? Cody's Lab, Smarter Every Day, Veratisium, The Sci Show 19:20 Follow Mehditation on YouTube as well: youtube.com/mehditation 19:35 If you really want to learn electronics, you must experiment. Just pickup some random project, start building, and you will learn. And if you don't care about electronics, do something else. I don't know... #electroBOOM #electroBOOMInterview #ElectricalEngineeringPodcast #EngineeringPodcast #ElectronicsPodcast #EEsTalkTech #KeysightPodcast #Podcast #TechPodcast #ComputerEngineeringPodcast
Little Big Power: Femtoamps and Regenerative Supplies - #40 Keysight Podcasts 2019-12-07 | When power systems get ridiculous...Tech Tip eBook: http://bit.ly/PodcastTechTrends Subscribe ► http://bit.ly/KeysPodcastSub ◄ Power goes way beyond basic bench power supplies. Daniel Bogdanoff sits down with Chris Cain to explore femtoamp measurements, 100 kV multi-quadrant regenerative power systems, noise, and space-borne solar arrays in this EEs Talk Tech electrical engineering podcast!More at eestalktech.comKeysight RP7900 regenerative power systems (RPS):keysight.com/en/pc-2812419/5-kw-and-10-kw-rp7900-series-regenerative-power-system?cc=US&lc=engKeysight CX3300 Dynamic Current Analyzer:keysight.com/en/pc-2633352/device-current-waveform-analyzers?cc=US&lc=engPodcast subscription links:iTunes: podcasts.apple.com/us/podcast/ees-talk-tech-an-electrical-engineering-podcast/id1238385165 Spotify: open.spotify.com/show/4j9CG7Z1iy9zkjnOSVHB6f Google: podcasts.google.com/?feed=aHR0cHM6Ly9lZXN0YWxrdGVjaC5jb20vZmVlZC9wb2RjYXN0&hl=en Stitcher: stitcher.com/podcast/keysight-technologies/ees-talk-tech RSS: eestalktech.com/feed/podcast/ees-talk-tech0:17Recording from New Jersey with Chris Cain, who manages teams for electronic industrial products, like power, DMMs, function generators, DAQs, board test, etc. 1:15Current analyzer behind us measures FEMTOAMPERES of current. This is useful for RF and IoT systems.4:20Chris’s most spectacular equipment failure – a new engineer put their electrolytics in backwards 6:30For extra large electrolytic capacitors people design vent holes in PCB 8:15High power power supplies. 5kW and 10 kW power supplies 9:00Two quadrant power supplies vs. one quadrant power supplies 10:30A 100 kV power supply!? What’s that used for? Battery emulation for things like electric cars. The supply has to be able to both source and sink power, and switch between the two very quickly 12:15A regenerative power supply (RPS) rectifies input voltage and puts it back on the AC mains instead of dissipating it as heat like a normal electronic load. So, the overall cooling requirements are very different for an RPS than a normal electronic load. One of the big costs for industrial factories is air conditioning and heat management. So, a regenerative power supply is very useful because it reduces heat. 15:15Regenerative power supplies are also useful for testing photovoltaic inverters, for both terrestrial and space solar systems. 18:45 Noise parameters for high power systems 20:30 Power is very complex, and the systems are very dynamic 22:15 Giant toroidal transformers are used for power supplies and are dynamically controlled. They also are leveraged from systems like source measure units (SMUs). 24:30 Precision current measurement is very different than measurement, it often uses a triax 25:30 Some systems have 5 or 6 wire measurements to help with guardbanding#electricalengineeringpodcast #engineeringpocast #electronicspodcast #keysightpodcast #computerengineeringpodcast #podcast #highpowersupply #highvoltagepowersupply #femtoampmeasurement #testgear #testequipment #regenerativepowersystems #regenerativepower
5G, Beamforming, & MIMO - #39 Keysight Podcasts 2019-11-29 | 5G is no joke and needs a LOT of new wireless tech to make happen!Tech Tip eBook: http://bit.ly/PodcastTechTrends Subscribe ► http://bit.ly/KeysPodcastSub ◄ More of the EEs Talk Tech Electrical Engineering Podcast:eestalktech.com1:004G was sub 6 GHz, but 5G is much higher frequencies (24 GHz, 28 GHz, 39 GHz, and above 50 GHz) 2:15 4G test strategies: simple source and a middle-of-the-line signal analyzer. There were also some combo boxes that were both signal sources and signal analyzers. 4:00 5G testing requires more powerful setups. There are still generators, but they have to be more powerful. FR2, 100 MHz, 200 MHz, 400 MHz wide bands make things more complicated. Chambers and OTA (over the air) testing and MIMO systems make things much more complicated. And, a 5G system has to cover all of these ranges. 5:30 MIMO for 5G – MIMO means “Multiple Input Multiple Output” Beamforming is also being implemented. Designers need to be able to test and see all the 5G signals at once. 7:00 Beamforming explanation and discussion – essentially beams can be directed with constructive and destructive interference to send signals to UEs (user equipment). 5G beamforming significantly increases the power delivered to a UE. Want to try it? Try “Build a beam” here: keysight.com/main/editorial.jspx?cc=US&lc=eng&ckey=2800374 10:00 5G brings wired-level speeds to wireless systems, which will open up brand new markets that haven’t even been defined yet. 11:15 5G security 12:00 Are 5G bandwidths a challenge? A wider carrier channel means more interference and a lower effective number of bits / SNR (signal to noise ratio). So, the wide 5G bands require a more robust design. This is especially true for distance. Even windows are potentially a challenge with 5G frequencies, so beamforming becomes critical. 15:30 Testing 5G with a signal analyzer / spectrum analyzer – is it doable? Sorta… How do you look at four distinct bands at one time? 18:00 The UXR oscilloscope can actually look at multiple bands at once at 0.5 EVM (error vector magnitude). 20:00 Why does 5G have so many different frequencies and bands? Isn’t that excessive? 21:00 Will 5G make it where I can get rid of my home internet provider? 22:00 Beamforming from a cell tower is pretty easy, but it’s much harder for a handset. So, there are systems that propose 5G downlinks, but 4G or 3G back up to the tower. 23:00 Multiple towers can talk to the same handset AT THE SAME TIME! Multiple towers can provide the same packet at the same time to the same UE to increase the power. This means they are all working on the same clock as well. 25:00 There are a number of ways to synchronize multiple cell towers at the same time. GPS is common, but there are a number of other feasible technologies. 27:00 Brig has to get in his “vicious Keysight plug” for the mmWave extension on the UXR that lets an oscilloscope behave like a signal analyzer. It also uses a 1mm connector on the front end. 31:45 Stupid question: if you had to describe 5G using five words that start with “G” what would they be?#5G #ElectricalEngineeringPodcast #MIMO #Beamforming #EngineeringPodcast #electronicspodcast #5GPodcast #Podcast #Keysight #KeysightPodcast
USB4 - No more Mr. Nice Guy, your USB-C connector has to do it all! - #38 Keysight Podcasts 2019-11-22 | New tunneling modes, the scoop on plugfests, and 40 Gbps!Tech Tip eBook: http://bit.ly/PodcastTechTrendsSubscribe ► http://bit.ly/KeysPodcastSub ◄More of the EEs Talk Tech Electrical Engineering Podcast: eestalktech.comIt feels like USB 3.2 just came out, but USB4 is HERE! With USB4, gone are the days of wondering what's behind that USB Type-C connector - all the functionality is mandatory. And, you get double the speed! 40 Gbps over two 20 Gpbs lines keeps Moore's law happy (which makes us happy).Find out more in today’s podcast with Jit Lim, Mike Hoffman, and Daniel Bogdanoff.Twitter: @DanielBogdanoff:twitter.com/DanielBogdanoffSubscribe with your podcast tool:iTunes:podcasts.apple.com/us/podcast/ees-talk-tech-an-electrical-engineering-podcast/id1238385165Spotify:open.spotify.com/show/4j9CG7Z1iy9zkjnOSVHB6fGoogle:podcasts.google.com/?feed=aHR0cHM6Ly9lZXN0YWxrdGVjaC5jb20vZmVlZC9wb2RjYXN0&hl=enStitcher:stitcher.com/podcast/keysight-technologies/ees-talk-techRSS:eestalktech.com/feed/podcast/ees-talk-techNotes & Topics:1:45The USB-IF released the USB4 Spec in SeptemberUSB4 requires that you use the USB Type C connectorUSB4 is fully backwards compatibleUSB4 uses a 20 Gbps x2 link (pronounced "by two") so Moore’s law still holds (yay!)USB 3.2 took 10 Gbps and doubled it to 20 GbpsIt’s USB4 not USB 4.0 and not USB 4 (confirmed)10:00With USB4 you must implement USB-PD (USB Power Delivery), but in the past it was optional.USB4 brings a doubling bitrates, you must use Type C connector, and must be backwards compatible all the way to USB213:30USB 3 and USB 3.2 had a lot of alternate modes, but USB4 implements a tunneling mode. With tunneling allows you to send packets of USB, DisplayPort, or PCIe inside of the USB protocol. This means you don’t have to run it as an alternate mode, which requires extra silicon.17:00The silicon is often prototyped before a spec is actually released, so that the spec can match reality and be possible to build.18:30USB4 is already being prototyped and tested. At the USB workshop-plugfestUSB plugfests are very secret, and company names aren’t used. They use a “test ID number” instead of company name, and the attendance is very limited. In many cases, only Keysight and the company testing their device are allowed to be in the room while the testing is done.21:00A “Compliance Test Spec” describes how you test a device against a specification. Because, you can’t test for every single thing in the spec, but you can test a subset of things to verify performance.22:00Will USB take over everything? It depends on the other organizations and specifications groups. There are other ecosystems and organizations like VESA (DisplayPort) and HDMI that are autonomous. But, both HDMI and VESA have a USB Type-C mode that allows the protocols to work over a USB Type C connector26:00USB4 implementation is very complex! The different speeds that could be used are pretty complex. USB4 is advertised 40 Gbps, but it’s actually 20 Gbps x2.30:15It can be 5 Gbps, 10 Gbps, 20 Gbps, and run at x1 or x2, and it can also do alt modes.31:55Are there any main competitors to USB4? What about the lightning connector from Apple?35:30There’s evidence that there will be a USB4 native display, and some high end USB4 monitors already exist.36:30USB4 is coming, and if you want to be on the leading edge you better get started now (and why)!38:20 - stupid questions:When will see USB5? What’s the lamest way someone could use USB4?If USB4 is truly universal, shouldn’t it go into space?Helpful Links:Keysight Bench Facebook page:facebook.com/keysightbenchKeysight RF Facebook page:facebook.com/keysightrfEEs Talk Tech Electrical Engineering podcast:eestalktech.com youtube.com/KeysightPodcastsCheck out our blog:http://bit.ly/KeysTechBlogs#USB4 #USB #ElectricalEngineeringPodcast #EngineeringPodcast #Podcast #electronicsPodcast #usbpodcast #eestalktech #keysightpodcast #keysightusb #plugfest #typec #usbtypec #usbpowerdelivery
Space Technology - EEs Talk Tech Electrical Engineering Podcast #36 Keysight Podcasts 2018-12-13 | Rad hardening, TVAC Chambers, Batteries, & more!Subscribe ► http://bit.ly/KeysPodcastSub ◄Space requires new technologies. Much like the space race of the 1950s, engineers are feverishly working to gain a competitive advantage. Mark Lombardi sits down to explore rad hardening, thermal vacuum chambers, space mining, CubeSats, and battery technology.More at eestalktech.com/space-technologyTopics + Time Tags:Mark Lombardi - 25 years at HP/Agilent/Keysight. He worked for RT logic for a few years, where he got into space.2:00 - Your odds of survival getting to space are better than getting to the top of Everest.2:30 - Space mining from the Asteroid belt has the potential to create the worlds first trillionaire.3:20 - We need to establish manufacturing in space. For example, what if you manufactured satellites on the moon instead of on earth?4:00 - The main driver is price-per-pound6:10 - The Space Force - it sounds a little silly at first but is very reasonable when you take a closer look.7:45 - How do you test objects bound for space?8:30 - Space is transitioning from government-only to commercial. Businesses are starting to explore how to add value to society and make a profit from space.9:15 - Phased arrays, reusable rockets, LEO satellites are all changing space technology.10:00 - Low earth orbit satellites have much lower delay. Geosynchronous satellites have a 250 ms propagation delay.This has interesting implications for 5G - that 250 ms latency is too long for 5G requirements. So, LEO satellites are what will be used.12:00 - Using LEO satellites will be deployed in force instead of as singles, as mentioned in the Weather Cubesat podcast.13:45 - Ghana launched their own satellite, which is a huge step. They eventually won't be dependent on others for their space access. And, they can do specialized things for reasonable prices.15:00 - Announcements - we haven't podcasted in a long time, sorry! We are switching to 1x per month16:45 - Radiation hardening for electronics, sometimes called electronics hardening. Historically, you had to plan for a long life in a satellite. Now, you don't have to.17:30 - It's also hard to get a rad hardened cutting-edge technology.18:00 - LEO satellites get less radiation, so it's less of a problem. And, since they are cheaper, you can build in an expected mortality rate.19:00 - You can also rev hardware faster, allowing you to use newer technology. Think about imagers, the technology has moved a long way in seven years.19:55 - Space is cold. Space is a vacuum. So, to test our gear you have to reproduce that on earth. To do that, we use special chambers.20:50 - Thermal vacuum chambers (T vac) are used to test space objects. Automotive parts are actually very resilient to temperature changes and can be leveraged into space designs.21:30 - What happens to electronics in space? The vacuum is a bigger challenge than the temperature changes.23:30 - To get more bandwidth, we have to increase frequency. This leads to attenuation in the air and in cables. Some designers are switching to waveguides.25:00 - With modular test equipment, you could potentially have test gear that can survive in space.27:00 - What is the current and projected size of the space industry?28:10 - What batteries are used in space? What factors into battery decisions? - Lithium ion batteries work well in space, and are used when we can charge them with solar energy.28:40 - Deep space exploration uses all sorts of obscure battery technology.29:10 - Electronic propulsion30:05 - Over 150V, things get interesting. The breakdown voltage is different in space than it is on earth. So, designers have to be very careful.#Space #SpaceMining #EngineeringPodcast #ElectricalEngineeringPodcast #KeysightPodcast #Keysight #EEsTalkTech #Podcast #SpacePodcast #SpaceElectronics #RadiationHardening #RadHardening
One Protocol to Rule Them All!? - #34 Keysight Podcasts 2018-09-13 | Can we simplify down to just one universal I/O protocol?Subscribe ► http://bit.ly/KeysPodcastSub ◄The USB Type-C brings a lot of protocols into one physical connector, but is there room for one protocol to handle all our IO needs? Mike Hoffman and Daniel Bogdanoff sit down with high speed digital communications expert Jit Lim to find out.Questions? Ask Daniel on Twitter: twitter.com/Keysight_DanielAlso at:eestalktech.com/one-protocol-to-rule-them-allAgenda:0:00 This is Jit's 3rd podcast of the series1:00 We already have one connector to rule them all with USB Type-C, but it's just a connector. Will we ever have one specification to rule them all?2:00 Prior to USB Type-C, each protocol required it's own connector. With USB TYpe-C, you can run multiple protocols over the same physical connector3:00 This would make everything more simple for engineers, they would only need to test and characterize one technology.3:30 Jit proposes a "Type-C I/O"4:00 Thunderbolt already allows displayport to tunnel through it4:30 Thunderbolt already has a combination of capabilities. It has a display mode - you can buy a Thunderbolt display. This means you can run data and display using the same technology6:30 There's a notion of a muxed signals7:00 The PHY speed is the most important. Thunderbolt is running 20 Gb/s7:15 What would the physical connection look like? Will the existing USB Type-C interface work? Currently we already see 80 Gb/s ports (4 lanes) in existing consumer PCs9:20 Daniel hates charging his phone without fast charging9:40 The USB protocol is for data transfer, but is there going to be a future USB dispaly protocol? There are already some audio and video modes in current USB, like a PC headset11:30 Why are we changing? The vision is to plug it in and have it "just work"12:00 Today, standards groups are quite separate. They each have their own ecosystems that they are comfortable in. So, this is a big challenge for getting to a single spec13:15 Performance capabilities, like cable loss, is also a concern and challenge14:00 For a tech like this were to exist, will the groups have to merge? Or, will someone just come out with a spec that obsoletes all of the others?15:30 Everyone has a cable hoard. Daniel's is a drawer, Mike's is a shoebox16:30 You still have to be aware of the USB Type-C cables that you buy. There's room for improvement17:30 Mike wants a world of only USB Type-C connectors and 3.5mm headphone jacks18:30 From a test and measurement perspective, it's very attractive to have a single protocol. You'd only have to test at one rate, one time19:30 Stupid questions
The Huge Challenge of Testing USB 3.2 - #33 Keysight Podcasts 2018-08-23 | It's darn hard! + Compliance Test Specs, BKMs, & pre-spec siliconSubscribe ► http://bit.ly/KeysPodcastSub ◄USB 3.2 testing is darn hard! We talk compliance test specs, USB 3.2 testing BKMs, and pre-spec silicon. Guest Jit Lim sits down with Mike Hoffman and Daniel Bogdanoff to talk about the new difficulties engineers are facing as they develop USB 3.2 silicon.More at eestalktech.com and eestalktech.com/the-huge-challenge-of-testing-usb-32 USB 3.2 testing is darn hard. Jit sits down with Mike Hoffman and Daniel Bogdanoff to talk about the new difficulties engineers are facing as they develop USB 3.2 silicon.Agenda:In the last electrical engineering podcast, we talked about how USB 3.2 runs in x2 mode ("by two")This means there's a lot of crosstalk. The USB Type C connector is great, but its small size and fast edges means crosstalk is a serious concern.When we test USB, we want to emulate real-world communications. This means you have to check, connect, and capture signals from four lanes.For testing Thunderbolt you always have to do this, too.Early silicon creators and early adopters are already creating IP and chips for a spec that isn't released yet.2:00 They're testing based on the BKM (Best Known Method)3:30 Jit was just at Keysight World Japan, where many people presented BKMs for current technologies. Waiting for a test spec to be released is not an excuse for starting to work on a technology.4:50 How many companies are actually developing USB 3.2 products? The answer isn't straightforward - the ecosystem is very complex and there are multiple vendors for a single system (like a cable).6:30 Many USB silicon vendors will develop an end-product and get it certified to prove that their silicon will work. They then sell the silicon and IP to other companies for use in their products.7:50 Daniel listened to an interesting podcast about how Monoprice reverse engineers complex products and sells them for cheaper:npr.org/sections/money/2014/11/28/366793693/episode-586-how-stuff-gets-cheaper9:40 There are some BNC cables at the Keysight Colorado Springs site that were literally wire pulled and built in the building.10:00 Has anything changed as USB technology advances? There are a lot of new challenges - multiple challenges, retimers, multiple test modesTesting retimers is nontrivial, they are full receivers and full transmitter.11:30 When a new spec is developed, what does that look like? How far does the test group go when setting a new spec?The spec doesn't look at how to test, it just looks it what it should do.Then, there's a compliance test specification (CTS). This is developed by a test group, that looks at how things should be tested.So, there are two groups. the first asks "what should the spec be?" and the second asks "how do we test that group?"13:30 How many people are testing USB 3.2? Even though the compliance test specification is not developed yet? There are non being shipped, but there is a lot of activity!14:30 What are the main challenges? Basics. When you have 10 Gbps over copper on a PCB, people are failing spec! There are issues with some devices passing only intermittently. Especially over long cables and traces.15:45 Cheap PCBs make things even more tricky. So, there's very sophisticated transmitter equalization and even moire sophisticated receiver equalization. It's crucial to keep the low cost PCB material and processes to keep the overall end-product cost low. Using higher end materials would dramatically increase the cost of consumer products.17:30 The first TV Mike bought was after his internship at Intel. He bought a $30-ish 1080i TV for $1600. Now, you couldn't give away that TV.18:30 Stupid questions for Jit:What is your favorite national park and why?What is your favorite PCB material and why?#ElectricalEngineeringPodcast #EngineeringPodcast #ElectronicsPodcast #KeysightPodcast #Podcast #USB #USB32 #ComplianceTestSpec #EEsTalkTech
USB 3.2 + Why You Only Have USB Ports On One Side of Your Laptop - #32 Keysight Podcasts 2018-08-09 | USB 3.2 DOUBLES the data transfer capabilities of previous USB specs, and could mean the end of having USB ports on just one side of your computer.Subscribe ► http://bit.ly/KeysPodcastSub ◄Find out more in today's electrical engineering podcast with Jit Lim, Daniel Bogdanoff, and Mike Hoffman.More at eestalktech.com and eestalktech.com/usb-3-2iTunes:itunes.apple.com/us/podcast/ees-talk-tech-an-electrical-engineering-podcast/id12383851651:00Jit is the USB and Thunderbolt lead for Keysight.1:30USB 3.2 specifications were released Fall 2017 and released two main capabilities.USB 3.2 doubles the performance of USB 3.1. You can now run 10Gb/s x2. It uses both sides of the CC connector.In the x2 mode, both sides of the connectors are used instead of just one.4:00The other new part of USB 3.2 is that it adds the ability to have the USB silicon farther away from the port. It achieves this using retimers, which makes up for the lossy transmission channel.5:00Why laptops only have USB ports on one side! The USB silicon has to be close to the connector.6:30If the silicon is 5 or 6 inches away from the connector, it will fail the compliance tests. That's why we need retimers.7:15USB is very good at maintaining backwards compatibilityThe USB 3.0 spec and the USB 3.1 spec no longer exist. It's only USB 3.2.The USB 3.2 specification includes the 3.0 and the 3.1 specs as part of them, and acts as a special mode.9:00From a protocol layer and a PHY layer, nothing much has changed. It simply adds communication abilities.9:55Who is driving the USB spec? There's a lot of demand! USB Type C is very popular for VR and AR.12:00There's no benefit to using legacy devices with modern USB 3.2 ports.13:45There's a newly released variant of USB Type C that does not have USB 2.0 support. It repurposes the USB 2 pins. It won't be called USB, but it'll essentially be the same thing. It's used for a new headset.15:20USB Type C is hugely popular for VR and AR applications. You can send data, video feeds, and power.17:00Richie's Vive has an audio cable, a power cable, and an HDMI cable. The new version, though, has a USB Type-C that handles some of this.18:00USB 3.2 will be able to put a retimer on a cable as well. You can put one at each end.What is a retimer? A retimer is used when a signal traverses a lossy board or transmission line. A retimer acquires the signal, recovers it, and retransmits it.It's a type of repeater. Repeaters can be either redrivers or repeaters. A redriver just re-amplifies a signal, including any noise. A retimer does a full data recovery and re-transmission.21:20Stupid Questions:What is your favorite alt mode, and why?If you could rename Type-C to anything, what would you call it?#USB #USB30 #USB32 USBSpec #ReTimer #USBSpecification #Specification #Podcast #ElectricalEngineering #ElectricalEngineeringPodcast #EngineeringPodcast #Electronics #ElectronicsPodcast
Power Supply EMI & BW Woes - #31 Keysight Podcasts 2018-07-26 | Kenny shares his experience debugging an 800 MHz EMC issueSubscribe ► http://bit.ly/KeysPodcastSub ◄The culprit? A power supply! Sometimes, that 1:1 probe just isn’t enough…Daniel Bogdanoff and guest host Erin chat with Kenny Johnson about the impact of power supplies on conducted and radiated emissions in today's EEs Talk Tech electrical engineering podcast.More at eestalktech.com and eestalktech.com/power-supply-emi-bw-woes Links to discussed topics:Decoupling Capacitor Optimization for Power Integrity Webcast:keysight.com/main/eventDetail.jspx?cc=US&lc=eng&ckey=2908999&nid=-35724.0.08Slides:keysight.com/upload/cmc_upload/All/29March2018WebcastSlides.pdfHow to Design for Power Integrity Video Series:youtu.be/X_l-aJzVYq8?list=PLtq84kH8xZ9FNXAsf-odoGNe6h5A6D3inSlides:keysight.com/upload/cmc_upload/All/5_Power_Integrity_Ecosystem.pdfKenny’s Favorite Probekeysight.com/en/pd-1938466/high-voltage-probe-10001-30-kv-50-mhz?cc=US&lc=engDecoupling Capacitor Optimization for Power Integrity Webcast:keysight.com/main/eventDetail.jspx?cc=US&lc=eng&ckey=2908999&nid=-35724.0.08Slides:keysight.com/upload/cmc_upload/All/29March2018WebcastSlides.pdfHow to Design for Power Integrity Video Series:youtube.com/playlist?list=PLtq84kH8xZ9FNXAsf-odoGNe6h5A6D3inSlides:keysight.com/upload/cmc_upload/All/5_Power_Integrity_Ecosystem.pdfKenny's Favorite Probekeysight.com/en/pd-1938466/high-voltage-probe-10001-30-kv-50-mhz?cc=US&lc=engAgenda:00:00Kenny likes textbooks1:30Kenny is a power integrity expert2:00Mobile device design is hard, Kenny feels bad for designers2:15Power integrity is coupled in with their radio, and makes it hard to pass EMI and EMC3:20EMI/EMC is failing, but:Hardware guy has good dataSoftware guy has good softwarePower guy looks to have no issues4:45 FCC, ETSI5:00 Types of EMI and EMC are:Conducted emissionsRadiated emissions6:00Example: The IoT processor is only clocking at 5 MHz, but the EMC engineer is picking up noise up to 750-800 MHz. And, the system is dropping bits. 7:15The 1:1 passive probe was hiding the higher frequency noise.Then, they were able to trigger on the power supply and see the noise in the data line - power supply induced jitter.A common rule of thumb is to have 20 MHz of bandwidth, but that's not always enough!10:50Optimizing decoupling capacitors. How to choose the right capacitors? Where to place decoupling capacitors?11:50Many complex components come with design guidelines (voltage regulators, capacitors, etc.). But, it shouldn't be treated as law.13:00Helpful resources13:40If you're working on more prosaic devices (they aren't crazy fast), even if you aren't having an EMI issue, the same part of the board that's having the EMI issues can also pollute the antennas.14:30How much bandwidth should you get?15:25Kenny connects to his device at full bandwidth, then pulls up an FFT. Then, he bandwidth limits to where the FFT rolls off.16:15A new power rail probe goes out to 6 GHz. Why do we need this much bandwidth? Higher BW noise!18:00Kenny saw a startup hub in Boston. It had a lot of different startups that pooled their collective resources to get access to higher end test equipment.19:00Kenny feels like the free tools are good for qualitative measurements, but not for quantitative measurements.20:46 - Adam Savage - "Buy the cheapest tool first. If you break it, go buy a nice one."21:30 Kenny is part of the inspiration for this podcast.24:45 Stupid Questions:What's the worst possible power integrity advice you could possibly give to someone?What's your favorite probe and why?#engineeringpodcast #electricalengineeringpodcast #electronicspodcast #eestalktech #keysightpodcast #EMI #EMC #powersupply #jitter #IoT #decouplingcapacitor
Weather CubeSats - #30 Keysight Podcasts 2018-07-12 | When does a cloud rain? We don't have a good answer. But, it's an electrical engineering problem - one that a handful of professors and NASA are solving with CubeSats. Subscribe ► http://bit.ly/KeysPodcastSub ◄More at eestalktech.com Keysight Labs YouTube channel: http://bit.ly/KLabs_subWe have surprisingly little knowledge of weather. When specifically does a cloud rain? How do these clouds form? We don't have good answers to these questions. Getting those answers is an electrical engineering problem - one that a handful of professors and NASA are solving with CubeSats.Historically, we've used large satellites and ground-based systems to track weather patterns, but CubeSat arrays are becoming a viable option. In this episode, Daniel Bogdanoff sits down with the leading researchers in this area to hear about the challenges and advancements being made in this area.Interviewees:Charles Norton - JPL Engineering and Science Directorate POCJoel T Johnson - ECE Department Chair and Professor at The Ohio State UniversityChristopher Ball - Research Scientist at The Ohio State UniversityDr. V. Chandrasekar (Chandra) - ECE Professor at Colorado State UniversityEva Peral - Radar Digital Systems Group Supervisor at JPLAgenda:Space is changing. Big, expensive satellites used to be our only option. But, as you’ve probably heard on this podcast, when it comes to technology the world is always shrinking – and satellites are no exception. And that’s what we’re exploring today, specifically, the way cubesats (miniature satellites) are revolutionizing the way we look at earth’s weather.1:05 Advantages of CubeSatsCubesats are nice not just because they’re cheaper and smaller. Thanks to the miniaturization of new technologies in both their physical size and their power consumption, we can deploy more systems, more rapidly, and at a lower cost. They also require smaller teams to develop and operate, and can even have higher measurement accuracy than existing assets.3:50 CubeRRTAt its core, CubeRRT is all about making radiometry measurements better by processing out man made emissions – leaving only the earth’s natural emissions.From NASA: "Microwave radiometers provide important data for Earth science investigations, such as soil moisture, atmospheric water vapor, sea surface temperature and sea surface winds. Man-made radiofrequency interference (RFI) reduces the accuracy of microwave radiometer data, thus the CubeSat Radiometer Radio Frequency Interference Technology Validation (CubeRRT) mission demonstrates technologies to detect and remove these unwanted RFI signals. Successful completion of the CubeRRT mission demonstrates that RFI processing is feasible in space, high volumes of data may be processed aboard a satellite, and that future satellite-based radiometers may utilize RFI mitigation."8:00 TEMPEST-DInstead of having a big satellite sitting in geosynchronous orbit, an array of CubeSats can be put in orbit such that they each pass over the same spot at set intervals. With some careful calibration, differences in the measurement equipment gets normalized out and they get good weather data.From JPL: "TEMPEST-D is a technology demonstration mission to enable millimeter wave radiometer technologies on a low-cost, short development schedule. The mission ... reduces the risk, cost, and development duration for a future TEMPEST mission, which would provide the first ever temporal observations of cloud and precipitation processes on a global scale. For TEMPEST-D, JPL developed a mm-wave radiometer payload that operates at five channels from 89 to 182 GHz and fits in a 4U volume within the 6U CubeSat."11:47 RainCube & the Origami AntennaFrom JPL: "RainCube (Radar in a CubeSat) is a technology demonstration mission to enable Ka-band precipitation radar technologies on a low-cost, quick-turnaround platform. RainCube developed a 35.75 GHz radar payload to operate within the 6U CubeSat form factor. This mission will validate a new architecture for Ka-band radars and an ultra-compact lightweight deployable Ka-band antenna in a space environment to raise the technology readiness level (TRL) of the radar and antenna from 4 to 7 within the three year life of the program. RainCube will also demonstrate the feasibility of a radar payload on a CubeSat platform."12:20 Foldable Antenna1.5U volume, Ka-band 35.75 GHz RADAR antenna.15:00 Why Measure Weather from Space?These are just a few of the cubesat projects that went up on the OA9 rocket launch. To hear more about that, check out EEs Talk Tech electrical engineering podcast episode #29 - The Long Road to Space.#CubeSats #WeatherSatellite #WeatherCubeSat #CubeSat #NASA #JPL #EngineeringPodcast #electricalengineeringpodcast #electronicspodcast #EESTalkTech #Keysight #Radar #radiometer
DDR5 Rx Testing is a Whole New Ballgame - #28 Keysight Podcasts 2018-05-24 | Receiver testing was never a concern for DDR design. Until now.Subscribe ► http://bit.ly/KeysPodcastSub ◄More at eestalktech.comKeysight Labs YouTube channel:http://bit.ly/KLabs_sub The margin for error ran out, and now Rx testing is getting standardized. We sit down with Stephanie Rubalcava to explore the challenges of this new ground.Agenda:1:00 This is the first time in the industry that high-accuracy, standardized receiver measurements need to be done2:20 DDR is very different from traditional memory in terms of testing3:10 Process of getting specs defined3:50 What a DDR receiver test (DDR Rx Test) looks like4:50 Even being just 100 mV off when testing can make a part appear to fail5:20 The BERT sends out a signal to test the channel, but what's really being tested is the DIMM and device's ability to receive data under certain conditions6:30 Receiver types across different devices? There's a DQS data clock signal, and a data signal. There are also command and address lines in DDR.6:50 For Rx testing, we're calibrating the signal going into the receiver7:30 JEDEC develops a lot of the testing standards8:10 Two components of test standards: compliance and characterization. Compliance asks "do I meet the spec?" Characterization asks "how well does my system perform, and where is my fail point?"9:35 Receiver test as whole is a challenge for engineersThey need new kinds of calibration, DDR fixtures, and tests.12:20 DDR Transmitters (DDR Tx) are progressing with DDR5 as well as receivers. We do have the DDR Tx history testing all the way back to DDR1.There are similar specifications for characteristics of DDR transmitters and DDR receivers.13:20 DDR Transmitter testing is at "the ball of the part" and checks for signal characteristics.
BattleBots 2018 & the Hardcore Robotics Team - #27 Keysight Podcasts 2018-05-10 | Robot carnage for the people.Subscribe ► http://bit.ly/KeysPodcastSub ◄More at eestalktech.comKeysight Labs YouTube channel:http://bit.ly/KLabs_sub "I tend to not turn Tombstone on outside of the arena. It scares the crap out of me..." - Ray Billings, Hardcore Robotics team captain.We sit down with BattleBots' resident bad boy to talk about the engineering behind the world's meanest fighting robots. We also talk robot carnage. Because we know you're really here for robot carnage.Agenda:00:03 Ray Billings leads the Hardcore Robotics Battlebots team, and is the “resident villain” on Battlebots.01:15 Ray’s robot, “Tombstone,” is ranked #1 on the Battlebots circuit.2:00 Ray doesn’t turn on the robot very often outside of the arena2:35 Ray’s carnage story3:20 See combat robots live for the full experience4:10 The first match of Battlebots 2018 should be one of the most epic Battlebots fights ever4:30 Ray has 1,000+ matches in 17 years5:00 How Ray got into Battlebots6:25 The main robot is called an offset horizontal spinner. It spins a 70-75 lb bar at 2500 rpm.7:40 The body is 4130 choromoly tubing. The drive motors were intended for an electric wheelchair, and the weapons motor is from an electric golf cart.8:20 Normal electrical motors are not designed to work for combat robots. Ray significantly stresses the motors.8:50 The weapon motor was designed to be used at 48V 300A, but Ray uses it at 60V and 1100A (at spinup). This would overheat and destroy the motor, so it shouldn’t be done long-term.9:40 – 70-80kW at spinup, and no start capacitor. He just uses a big marine relay.10:00 Ray’s robot has 1 second to be lethal10:30 If there’s a motor-stall potential mid match, Ray will turn off the motor to save batteries/electronics11:00 What’s the weak point of Ray’s robot? One match, the weapon bar snapped in half.11:40 Ray uses tool-grade steel, so it won’t bend, it’ll just snap.12:40 The shock loads can break the case. The weapon motor looks like it’s rigidly mounted, but because it’s on a titanium plate it has some shock absorber. There’s also a clutch system in the sprocket to help offset shock.13:40 Ray’s robot has to take all of the force that the opponent’s robots do (equal and opposite), but if it’s coming in a direction you want vs. one you don’t want you can design-in protection.14:40 What test challenges were faced during assembly and design?It’s been highly iterated. There are no shortcuts for designing combat robots. You have to see where something breaks, then adjust.15:45 When Ray started in 2004, his robot was just a “middle of the pack” robot. With years of iteration, it’s now a class-dominant robot.16:45 Ray spins up the robot at least once before a competition. It’ll pick up debris from the ground and throw it around.17:50 Battery technology and batteries for combat robots: Originally used lead acid batteries for their current supply. Now everyone uses Lithium chemistry. It's about power-to-weight ratio, so lighter batteries give more flexibility.19:00 Gas powered combat robots? 20:15 Ray has wrecked arenas. The arena rails are 1/2” steel, and Ray can cut a soda-can sized hole in them. He’s wrecked panels and ceiling lights.21:20 Combat robot communication systems: today everything runs on 2.4 GHz digitally encoded systems. They often use RC plane controls because they are highly customizable and there are a lot of available channels.22:00 Drive systems: the wheels & motors come together. They use a hard foam in the tires so you can’t get a flat.22:45 Centrifugal force – not a huge problem because the blade spins in-plane. But, when he gets bumped up the blade fights gravity before it can self-right.24:40 The rest of the Hardcore Robotics team is three people.. The team is Ray, his son (Justin), and his friend Rick. Rick used to run his own team, but has more fun fabricating and building robots than he does driving them.25:30 There will be 6 fights/hour, and the show will be on the Discovery channel and the science channel premiering May 11th.26:15 The first fight got leaked in some promo footage, Tombstone vs. Minotaur.26:35 Would Ray rather fight a good robot or a bad one? Ray says “anyone.”Battlebots 2018 (season 3) will have “fight card” fights, then a playoff of the top 16 robots.27:50 A given frame only lasts an event or two before needing to be replaced. This many fights is really hard on the robot.29:20 Combat robot kits are a great way to get into the sport, especially ant-weight and beetle weight kits.30:00 Stupid questions31:15 Ray wants to try a new hammer robot, a full-shell spinner, and a vertical spinner.33:15 Ray is also an engineer at Intel.
Secret Specs, LPDDR5 and Interposers - EEs Talk Tech #26 Keysight Podcasts 2018-04-26 | Making DDR5 work, and other secrets...Subscribe ► http://bit.ly/KeysPodcastSub ◄More at eestalktech.com and on our main Keysight Labs YouTube channel:http://bit.ly/KLabs_sub Keeping specs secret is just part of the job. Getting a usable, working spec is another. We sat down with Jennie Grosslight to learn why JEDEC guards a spec, the basic DDR architecture, and geek out about the challenges of probing DDR.Hosted by Daniel Bogdanoff and Mike Hoffman, EEs Talk Tech is a twice-monthly engineering podcast discussing tech trends and industry news from an electrical engineer's perspective.Agenda:1:00How specifications are defined2:00 Bigger companies tend to drive specifications because they can afford to put money into new productsSometimes small or midsize companies with an idea can make something new happen2:50Most memory technologies have a couple players:The chipset and the memory controllerThe actual device that stores the data3:30Tremendous amount of work between all the players to make all the parts work together5:00Why JEDEC keeps information about new products private as they're being developedIf you spread your information too wide then you can get a lot of misinformation Early discussion might not resemble end product6:20 DDR5, LPD, and 3D die stacking are new and exciting in memory7:00We keep pushing physics to new edges7:20Heat management in 3D silicon is a big challenge8:20LPDDR5 is the new low power memory for devices like cell phones and embedded devices 9:105G devices will likely depend on LP memory 10:20Once the RF challenges of 5G are figured out there will be even more challenges on the digital side with the large bandwidths and low latencies11:10Better performance and lower power is driving development of LPDDR5 It will be interesting to see if improvements are made in jumps or slowly12:00Dropping voltage swing and increasing speed both make the eye smallerMaking the eye smaller makes you more vulnerable to crosstalk12:20 - Completely closed eyes for DDR5eestalktech.com/2018/02/22/memory-ddr5-and-jedec 13:00 How memory is being probedLots of simulation because the circuits are so sensitive14:20Crosstalk is often a problem when making measurements14:50Economics drives everything so new technology is often based on existing systems15:40What's next is up to who comes up with the best idea16:40What will drive change is when the existing materials can no longer meet performance17:50Power is important for big data farms as well as cell phones19:50GDDR and DDR21:00 Chipset rank on a DIMMThe pieces share a common data bus so you need to know the order to properly test 24:20DIMM interposer used for logic measurements for servers25:50With a scope a ball grid array is used under a device or the pins are probedOscilloscope inteposers are available that work similarly to the logic analyzer interposersThe logic analyzer looks at all the signals at once, typically the scope only looks at a few28:10When testing you want to validate that the device followed the protocal in the right sequence29:10Data rates of DDRDDR5 is supposed to get to 6400#DDR #LPDDR #DDR5 #LPDDR5 #GDDR #RAM #Memory #Podcast #electricalengineeringpodcast #engineeringpodcast
DDR5 and 3D Silicon - EEs Talk Tech #25 Keysight Podcasts 2018-04-12 | Digesting the DDR5 paradigm shift.Sign up for Perry's DDR5 Webcast ► http://pages.electronicdesign.com/Digital-Design-Test More EEs Talk Tech Episodes:http://www.eestalktech.com/3d-silicon-ddr5Click to subscribe! ► http://bit.ly/Scopes_Sub ◄Keysight Labs YouTube channel: http://www.youtube.com/KeysightLabsTwitter: @Keysight_Daniel twitter.com/Keysight_Daniel "You reach critical certain thresholds that are driven by the laws of physics and material science" - Perry KellerDDR5 marks a huge shift in thinking for traditional high-tech memory and IO engineering teams. The implications of this are just now being digested by the industry, and opening up doors for new technologies.Agenda:LPDDR5 6.4 gigatransfers per second (GT/s)"You reach critical certain thresholds that are driven by the laws of physics and material science" - Perry Keller1:00 We're running into the limits of what physics allows2:00 DDR3 at 1600 - the timing budget was starting to close.2:30 With DDR5, a whole new set of concepts need to be embraced.3:00 DesignCon is the trade show - Mike is famous for his picture with ChipHead4:00 Rick Eads talked about DesignCon in the PCIe electrical engineering podcast4:40 The DDR5 paradigm shift is being slowly digested4:50 DDR (double data rate) introduced source synchronous clocking5:30All the previous memories had a system clock that governed when data was transferred.Source synchronous clocking is when the system controlling the data also controls the clock. Source synchronous clocking is also known as forward clocking.This was the start of high speed digital design.At 1600 Megatransfers per second (MT/s), this all started falling apart.7:00For DDR5, you have to go from high speed digital design concepts to concepts in high speed serial systems, like USB.The reason is that you cant control the timing as tightly. So, you have to count on where the data eye is.As long as the receiver can follow where that data eye is, you can capture the information reliably.DRAM doesn't use an embedded clock due to latency. There's a lot of overhead, which reduces channel efficiency9:00DDR is single ended for data, but over time more signals become differential.You can't just drop High Speed Serial techniques into DDR and have it work.The problem is, the eye is closed. The old techniques won't work anymore.10:45DDR is the last remaining wide parallel communication system.There's a controller on one end, which is the CPU. The other end is a memory device.11:15With DDR5, the eye is closed. So, the receiver will play a bigger part. It's important to understand the concepts of equalizing receivers.You have to think about how the controller and the receiver work together.12:20Historically, the memory folks and IO folks have been different teams. The concepts were different. Now, those teams are merging13:00DDR5 is one of the last steps before people have to start grappling with communication theory. Modulation, etc.14:10Most PCs now will have two channels of communication that's dozens or hundreds of bits wide.14:45What is 3D silicon?If 3D silicon doesn't come through, we'll have to push more bits through copper.3D silicon is nice because you can pack more into a smaller space.3D silicon is multiple chips bonded together. Vias connect through the chips instead of traces.The biggest delay for 3D silicon is that it turns on its head the entire value delivery system.7 years ago, JEDEC started working on wide IO17:15What's the difference between 3D silicon and having it all built right into the processor?It's the difference between working in two dimensions and three dimensions. If you go 3D, you can minimize footprint and connections18:45Flash memory, the big deal has been building multiple active layers.19:45The ability to stack would be useful for mobile.21:45Where is technology today with DDR?DDR4 is now mainstream, and JEDEC started on DDR5 a year ago (2017)#DDR5 #DDR #DDRMemory #3DSilicon #IC #ChipLayers #HighSpeedDigital #JEDEC #podcast #EngineeringPodcast #ElectricalEngineeringPodcast
Memory, DDR, and JEDEC - EEs Talk Tech #24 Keysight Podcasts 2018-02-22 | "It's a miracle it works at all." - Perry KellerClick to subscribe! ► http://bit.ly/Scopes_Sub ◄Twitter: @Keysight_Daniel twitter.com/Keysight_Daniel "It's a miracle it works at all." Not the most inspiring words from someone who helped define the latest DDR spec. But, that's the the state of memory systems today. Closed eyes and mV swings are the topic of today's electrical engineering podcast. Daniel Bogdanoff and Mike Hoffman sit down with Perry Keller to talk about the state of memory today and it's inevitable march into the future.Agenda:00:00Guest: Perry Keller works with standards committees and making next generation tech happen00:50Perry has worked with memory systems for 15 years1:25Perry is on the JEDEC board of directorsJEDEC is older than IEEE1:50JEDEC was established to create standards for semiconductors. This was when vacuum tubes were being replaced with solid state devices.2:00JEDEC started by working on instruction set standards. There are two keygroups. A wide bandgap semiconductors group & a memory group3:00Volatile memory vs. nonvolatile memory. An SSD is nonvolatile storage, like in a phone. But if you look at a DIMM in a PC that's volatile. Nonvolatile memory is all over the place.4:00Even a DRAM can hold its contents for quite some time. JEDEC had discussions about doing massive erases because spooks will try to recover data from it.DRAM uses capacitors for storage, so the colder they are the longer they hold their charge.4:45DRAM is the last classical wide, single ended parallel bus. "It's a miracle that it works at all."6:10Even though DDR signals look bad, the timing and clocking is set up in a way to deal with all of the various factors.8:35When DDR started, 144 MT/s (megatransfers per second) was thought to be fast. DDR5 has and end goal of 6.5 GT/s on a wide single ended parallel bus.9:05Power is the big driver for memory technology. LPDDR - low power DDR - is also big right now.9:30In the memory ecosystem, the big activity is around mobile technology. The server applications are focused with the cloud, but the new technology and investment is for mobile.10:00DRAM can be divided into three main categories. Mainstream PC memory, low power memory, and GDDR (graphics memory).For example, LPDDR is made up of static designs. It can clock down to DC, which normal DDR can't do.The first DDR was basically TTL compatible. Now, we have 1.1V power supplies and voltage swings in the mV range.Semiconductor technology is also driving the voltages down.11:45DRAM and GDDR is a big deal for servers. A company from China asked JEDEC to increase the operating temperature range of DRAMs by 10 degrees C. They fire up one new coal fired power plant every week in China to meet growing power demand. They found they could cut it down to only 3 per month with this change in temperature specs.13:09About 5 yrs back, the industry realized increasing I/O speeds won't help performance that much because the core memory access time hasn't really changed in 15 years. The I/O rates have increased, but they get there by pulling more bits at once out of the core and shifting them out. The latency is what really hurts (at a system level).14:14Dev teams' entire budget for designing silicon is paid for out of smaller electric bills.15:00Wide bandgap semiconductors can run at very high temperatures. If that temperature ends up being deployed to data centers, you'll have to have moon suits to access the servers.16:29There's more interesting stuff going on in computing now than ever.The interface between different architecture levels is not smooth. The magic in a spin-up disk is in the cache-optimizing algorithms. That whole 8-level computer architecture structure is being re-thought. 18:00Von Neumann architectures are not limiting designers and engineers any more. Anything that happens architecturally in the computing world affects and is affected by memory.22:00When we move from packaged semiconductors towards 3D silicon we will see the demise of DDR. The first successful 3D silicon is called high bandwidth memory, which is basically a replacement for GDDR5.23:00 To increment to a new DDR spec, you basically have to double the burst size.Check out our blog:http://bit.ly/ScopesBlogLike our Facebook page:facebook.com/keysightbench#memory #DDRMemory #GDDR #DDR5 #JEDEC #ComputerMemory #DDR6 #Computing #ComputerArchitecture #electronics #electricalengineering
