SIGLE_CONTROL_FOR_1000000;1_FREQUENCY_RANGE

Published:2009/7/6 21:00:00 Author:May | From:SeekIC

Uses two RCA CA313 opamps and CA3080A operational transconductance amplifier to generate square and triangle outputs that can be swept over range of o.1 Hz to 100 kHz with single 100K pot R1. Altemate voltage-control input is available for remote adiustment of sweep frequency. IC1 is operated as voltage-controlled current source whose output current is applied directly to integrating capacitor C1 in feedback loop of integrator IC2. R2 adiusts symmetry of triangle output. IC3 is used as controlled switch to set excursion limits of triangle output when square wave is desired.- Linear Integrated Circuits and MOS/FET's, RCA Solid State Division, Somerville, NJ, 1977, p 236-244



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