00000nam 2200000zi 4500 9.915270 CaOODSP 20221107183201 m o d f cr mn||||||||| 220909e199806##onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre Co24-3/7-98-005E-PDF Mason, Lloyd, author. Hopping synthesizer controller interface board design for Skynet uplink trials / by Lloyd Mason. Ottawa : Industry Canada, Communications Research Centre, June 1998. 1 online resource (xiii, 24 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 98-005 Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. "The work described in this document was sponsored by the Defence R&D Branch of the Department of National Defence under work unit 5CA11." Includes bibliographical references (pages 20-21). "In this report the design of an integrated circuit board for use in the payload of an extremely high frequency satellite communications experiment is described. This board, called the hopping synthesizer controller interface (HSCI) board, provides all necessary clock signals for the payload as well as the means to control the hopping synthesizer controller used in dehopping the received signal at the payload. Most of the integrated circuits on this board are standard off-the-shelf 7400 series transistor-transistor logic devices. The complexity of the printed circuit board (PCB) is greatly reduced by using two erasable programmable logic devices (EPLDs). One of these EPLDs derives all of the necessary clock signals from a single crystal oscillator. The other EPLD provides a board addressing capability as well as a strobe signal to control the hopping synthesizer controller. Two different versions of the HSCI board were built, one was a speed-wrap prototype version while the other was the finalized PCB version. Both boards were found to operate reliably and to meet expected performance"--Abstract, page iii. Includes abstracts in English and French. Integrated circuits Design and construction. Printed circuits Design and construction. Radio frequency modulation. Artificial satellites in telecommunication. Circuits intégrés Conception et construction. Circuits imprimés Conception et construction. Modulation de fréquence. Satellites artificiels dans les télécommunications. Communications Research Centre (Canada), issuing body. Canada. Department of National Defence, sponsoring body. CRC report ; no. 98-005. (CaOODSP)9.882492 PDF 1,001 KB https://publications.gc.ca/collections/collection_2022/isde-ised/co24/Co24-3-7-98-005-eng.pdf