PSEUDORANDOM_DIGITAL_GENERATOR

Published:2009/7/11 3:19:00 Author:May | From:SeekIC

Uses two Am687 dual sampling comparators toimplement 200-Mb/s pseudorandom digital-sequence generator for checking and measuring performance of high-speed digital communication equipment. Produces sequence length of 127 bits, but delay-line length can be changed to give any desired other sequence length. Circuit acceptsfrom 195to 203 Mb/s,which is more than adequate for systems using crystal clock having ±0.1% frequency variation. Article describes operation and gives timing diagram.-G. L. Meyer, Sampling Comparators-They Sub for High-Speed Logic and Produce Power, Cost and Space Savings, EDN Magazine, Sept. 5,1977, p 71-74.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Signal_Processing/PSEUDORANDOM_DIGITAL_GENERATOR.html

Print this Page | Comments | Reading(3)