PRECISION_FREQUENCY_COUNTER_TACHOMETER

Published:2009/7/7 23:16:00 Author:May | From:SeekIC

In this configuration, the display reads hertz directly. With pin 11 of the ICM7027A connected to VDD, the gating time will be 0.1 second; this will display tens of hertz as the least significant digit. For shorter gating times, an ICM7207 can be used with a 6.5536-MHz crystal, giving a 0.01 second gating with pin 11 connected to VDD, and a 0.1 second gating with pin 11 open.



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