Share Email Print

Proceedings Paper

CFHT's Generation III Controller: a multiamplifier focal plane array readout system
Author(s): John M. Kerr; Christopher C. Clark; Steve Smith
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

To manage the increased size of focal plane arrays (FPA) and the accompanying data volume increase, we have developed a detector control system that allows parallel readout of multiple array amplifiers. This system consists of a data acquisition computer running the Pegasus Software System on a UNIX platform, an interface control computer and a digital signal processor (DSP) to directly control the array. At the heart of the system is a DSP-based controller (Leach SDSU) which serves as a waveform generator and video processor. It is completely software programmable, making it quite adaptable to a host of FPA designs. We have configured our system into a four channel system, reading pixel data out of all four quadrants of an array. Image data is descrambled in the interface computer, producing a sensible image on the image display. We have applied this system to control and readout of large format CCDs and to IR arrays.

Paper Details

Date Published: 1 June 1994
PDF: 8 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176790
Show Author Affiliations
John M. Kerr, Canada-France-Hawaii Telescope Corp. (United States)
Christopher C. Clark, Jet Propulsion Lab. (United States)
Steve Smith, IRTF (United States)

Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?