EvilmonkeyzDesignz | CCU #205: FD25E Frequency Doubler @EvilmonkeyzDesignz | Uploaded April 2024 | Updated October 2024, 11 minutes ago.
#ComponentsCloseUp No. 205: Frequency Doubler
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*** Quick Facts! ***
Manufacturer: MACOM
Part Number: FD25E
Cost per Unit: $181.92 (Digikey)
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As said above, this part is a frequency doubler, which is a type of component more generally referred to as a frequency multiplier. As the name suggests, it takes an input frequency signal and outputs a multiple of what comes in, or a harmonic of the input frequency. This particular part will double any input frequency in the range of 5 to 2400MHz. Over this range of frequencies, the output will typically be 13 dB less than the input.
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When I initially saw this part I expected there to be a chip inside of it, given its appearance. As I found out, looks can be deceiving! Inside there are a few passive parts that make up the frequency doubler circuit. According to the datasheet, this part includes a Schottky bridge quad diode, along with some ferrite baluns, and that's basically it. The parts are fixed into place and connected together with some enamel wire.
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I would recommend the wikipedia page on “Frequency Multipliers” for more information about how they work.
#ComponentsCloseUp No. 205: Frequency Doubler
-
*** Quick Facts! ***
Manufacturer: MACOM
Part Number: FD25E
Cost per Unit: $181.92 (Digikey)
-
As said above, this part is a frequency doubler, which is a type of component more generally referred to as a frequency multiplier. As the name suggests, it takes an input frequency signal and outputs a multiple of what comes in, or a harmonic of the input frequency. This particular part will double any input frequency in the range of 5 to 2400MHz. Over this range of frequencies, the output will typically be 13 dB less than the input.
-
When I initially saw this part I expected there to be a chip inside of it, given its appearance. As I found out, looks can be deceiving! Inside there are a few passive parts that make up the frequency doubler circuit. According to the datasheet, this part includes a Schottky bridge quad diode, along with some ferrite baluns, and that's basically it. The parts are fixed into place and connected together with some enamel wire.
-
I would recommend the wikipedia page on “Frequency Multipliers” for more information about how they work.
