CCAT-prime: RFSoC based readout for frequency multiplexed kinetic inductance detectors

Adrian K. Sinclair; Ryan C. Stephenson; Cody A. Roberson; Eric L. Weeks; James Burgoyne; Anthony I. Huber; Philip M. Mauskopf; Scott C. Chapman; Jason E. Austermann; Steve K. Choi; Cody J. Duell; Michel Fich; Christopher E. Groppi; Zachary Huber; Michael D. Niemack; Thomas Nikola; Kayla M. Rossi; Adhitya Sriram; Gordon J. Stacey; Erik Szakiel; Joel Tsuchitori; Eve M. Vavagiakis; Jordan D. Wheeler

doi:10.1117/12.2629722

31 August 2022 CCAT-prime: RFSoC based readout for frequency multiplexed kinetic inductance detectors

Adrian K. Sinclair, Ryan C. Stephenson, Cody A. Roberson, Eric L. Weeks, James Burgoyne, Anthony I. Huber, Philip M. Mauskopf, Scott C. Chapman, Jason E. Austermann, Steve K. Choi, Cody J. Duell, Michel Fich, Christopher E. Groppi, Zachary Huber, Michael D. Niemack, Thomas Nikola, Kayla M. Rossi, Adhitya Sriram, Gordon J. Stacey, Erik Szakiel, Joel Tsuchitori, Eve M. Vavagiakis, Jordan D. Wheeler

Author Affiliations +

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 121900W (2022) https://doi.org/10.1117/12.2629722
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Prime-Cam instrument on the Fred Young Submillimeter Telescope (FYST) is expected to be the largest deployment of millimeter and submillimeter sensitive kinetic inductance detectors to date. To read out these arrays efficiently, a microwave frequency multiplexed readout has been designed to run on the Xilinx Radio Frequency System on a Chip (RFSoC). The RFSoC has dramatically improved every category of size, weight, power, cost, and bandwidth over the previous generation readout systems. We describe a baseline firmware design which can read out four independent RF networks each with 500 MHz of bandwidth and 1000 detectors for ∼30 W. The overall readout architecture is a combination of hardware, gateware/firmware, software, and network design. The requirements of the readout are driven by the 850 GHz instrument module of the seven-module Prime-Cam instrument. These requirements along with other constraints which have led to critical design choices are highlighted. Preliminary measurements of the system phase noise and dynamic range are presented.

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Adrian K. Sinclair, Ryan C. Stephenson, Cody A. Roberson, Eric L. Weeks, James Burgoyne, Anthony I. Huber, Philip M. Mauskopf, Scott C. Chapman, Jason E. Austermann, Steve K. Choi, Cody J. Duell, Michel Fich, Christopher E. Groppi, Zachary Huber, Michael D. Niemack, Thomas Nikola, Kayla M. Rossi, Adhitya Sriram, Gordon J. Stacey, Erik Szakiel, Joel Tsuchitori, Eve M. Vavagiakis, and Jordan D. Wheeler "CCAT-prime: RFSoC based readout for frequency multiplexed kinetic inductance detectors", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 121900W (31 August 2022); https://doi.org/10.1117/12.2629722

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