Uploaded July 2022 | Updated September 2026, 1 hour ago
Full title: LISA Phasemeter based on MicroTCA as ground-support equipment: signal distribution and component phase noise measurements
We present the concept, design and development status of an electrical ground-support equipment phasemeter, or phasemeter simulator, based on the MicroTCA.4.1 standard. The development is done in parallel to, and in collaboration with, the flight hardware phasemeter. This EGSE phasemeter shall be available for assembly, integration, verification and testing (AIVT) phase of the mission and for the technology development of payload items. The MicroTCA.4.1 standard, developed for, and deployed in, large scale accelerators like the European XFEL, is uniquely suited for realizing a LISA-type phasemeter with more than 48 readout channels, providing further extensibility, high reliability and various interfaces.
We present the distribution of pilot tone, GHz side-bands and input signals and provide phase noise measurements of critical analog components. For the component measurements, we implemented a Python kHz phasemeter running on a Zynq-7000 FPGA on a DAMC-FMC1Z7IO module in the MicroTCA crate which will also be used as processing unit for the main phasemeter. Most tested components fulfill the LISA phase noise requirements, but temperature dependencies are often critical without active temperature control.
Authors:
Christian Darsow-Fromm (Presenting)
University of Hamburg, Hamburg, Germany
Jan Marjanovic
DESY, Hamburg, Germany
Johannes Zink
DESY, Hamburg, Germany
Michael Büchler
DESY, Hamburg, Germany
Lukasz Butkowski
DESY, Hamburg, Germany
Holger Schlarb
DESY, Hamburg, Germany
Frank Ludwig
DESY, Hamburg, Germany
Oliver Gerberding
University of Hamburg, Hamburg, Germany
Full title: LISA Phasemeter based on MicroTCA as ground-support equipment: signal distribution and component phase noise measurements
We present the concept, design and development status of an electrical ground-support equipment phasemeter, or phasemeter simulator, based on the MicroTCA.4.1 standard. The development is done in parallel to, and in collaboration with, the flight hardware phasemeter. This EGSE phasemeter shall be available for assembly, integration, verification and testing (AIVT) phase of the mission and for the technology development of payload items. The MicroTCA.4.1 standard, developed for, and deployed in, large scale accelerators like the European XFEL, is uniquely suited for realizing a LISA-type phasemeter with more than 48 readout channels, providing further extensibility, high reliability and various interfaces.
We present the distribution of pilot tone, GHz side-bands and input signals and provide phase noise measurements of critical analog components. For the component measurements, we implemented a Python kHz phasemeter running on a Zynq-7000 FPGA on a DAMC-FMC1Z7IO module in the MicroTCA crate which will also be used as processing unit for the main phasemeter. Most tested components fulfill the LISA phase noise requirements, but temperature dependencies are often critical without active temperature control.
Authors:
Christian Darsow-Fromm (Presenting)
University of Hamburg, Hamburg, Germany
Jan Marjanovic
DESY, Hamburg, Germany
Johannes Zink
DESY, Hamburg, Germany
Michael Büchler
DESY, Hamburg, Germany
Lukasz Butkowski
DESY, Hamburg, Germany
Holger Schlarb
DESY, Hamburg, Germany
Frank Ludwig
DESY, Hamburg, Germany
Oliver Gerberding
University of Hamburg, Hamburg, Germany
