Keyed_oscillator

Published:2009/7/24 6:03:00 Author:Jessie | From:SeekIC

In this circuit, one timer section of an XR-L556 is operated in the free-running mode, and is keyedon and off by the other section. The circuit output (timer 2) appears as a tone burst, whose frequency is set by RA, RB, and C2, and whose duration is set by R1 and C1. EXAR Corporation Databook, 1990, p. 5-222.



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