4O_1_SCALER_FOR_1200_MHz

Published:2009/7/6 2:33:00 Author:May | From:SeekIC

Uses Fairchild 11C05 divide-by 4 counter and 95H90 decade divider. Unused CP input is tied to ground. Transistor translates ECL level to TTL for driving one unit load. Operatesfrom single regulated power supply. Input may be AC or DC coupled so either input amplifier or simple bias network (also given in article) may be used. 10K resistor from pin 4 to ground eliminates noise triggering in middle frequency ranges.-D. Schmieskors, 1200-MHz Frequency Scalers, Ham Fladio, Feb.1975, p 38-40.



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