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AN37

Download Application Note
Title
Title
TC7136/TC9400 Digital Readout Frequency Meter
Name
Name
AN37
Date
Date
06/24/2015
Description
Description
Two low-cost integrated circuits can be combined to create a simple digital frequency meter. The combination of a frequency-to-voltage converter (FVC) and a dual-slope, analog-to-digital display converter (ADC) makes a small 2-chip frequency meter that can be run from one 9-volt battery.