IC_rprecision_waveform_generator_with_sweep_and_frequency_modulation_

Published:2009/7/25 4:23:00 Author:Jessie | From:SeekIC

These circuits are similar to that of Fig. 5-47, except that the circuits provide for FM or sweep modulation. Use circuit 5-50A for FM (small deviations, about±10%). Use circuit 5-50B for a sweep range of 1000:1. As a guideline, the sweep frequency approaches 0 Hz when the voltage at pin 8 equals VCC, and reaches maximum at the lower pin-8 voltage limit of VCC - (1/3 VSUPPLY -2).Waveform symmetry variations can be minimized when a 10-M resistor is added between pins 5 and 11.



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