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Development of Space-Flight Compatible Room-Temperature Electronics for the Lynx X-Ray MicrocalorimeterWe are studying the development of space-flight compatible room-temperature electronics for the Lynx x-ray microcalorimeter (LXM) of the Lynx mission. The baseline readout technique for the LXM is microwave SQUID multiplexing. The key modules at room temperature are the RF electronics module and the digital electronics and event processor (DEEP). The RF module functions as frequency converters and mainly consists of local oscillators and I/Q mixers. The DEEP performs demultiplexing and event processing, and mainly consists of field-programmable gate arrays, ADCs, and DACs. We designed the RF electronics and DEEP to be flight ready, and estimated the power, size, and mass of those modules. There are two boxes each for the RF electronics and DEEP for segmentation, and the sizes of the boxes are 13 in: × 13 in: × 9 in: for the RF electronics and 15.5 in: × 11.5 in: × 9.5 in: for the DEEP. The estimated masses are 25.1 kg∕box for the RF electronics box and 24.1 kg∕box for the DEEP box. The maximum operating power for the RF electronics is 141 W or 70.5 W∕box, and for the DEEP box is 615 W or 308 W∕box. The overall power for those modules is 756 W. We describe the detail of the designs as well as the approaches to the estimation of resources, sizes, masses, and powers.




















Document ID
20190026716
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1117/1.JATIS.5.2.021013
Authors
Sakai, Kazuhiro (Maryland Univ. Baltimore County (UMBC) Baltimore, MD, United States)
Adams, Joseph S. (Maryland Univ. Baltimore County (UMBC) Baltimore, MD, United States)
Bandler, Simon R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bennett, Douglas A. (National Inst. of Standards and Technology (NIST) Boulder, CO, United States)
Irwin, Kent D. (Stanford Univ. Stanford, CA, United States)
Mates, John A. B. (National Inst. of Standards and Technology (NIST) Boulder, CO, United States)
Date Acquired
June 27, 2019
Publication Date
April 26, 2019
Publication Information
Publication: Journal of Astronomical Telescopes, Instruments, and Systems
Publisher: SPIE
Volume: 5
Issue: 2
Subject Category
Astrophysics
Spacecraft Instrumentation And Astrionics
Report/Patent Number
GSFC-E-DAA-TN68350
Funding Number(s)
CONTRACT_GRANT: 80GSFC17M0002
CONTRACT_GRANT: 80GSFC17M0002
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.

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