Precision frequency counter


Posted on Feb 5, 2014

This circuit shows a simple 4-digit frequency counter using an ICM7217 and an ICM7207 (which provides the 1-s gating window and the STORE and RESET signals). The display reads hertz directly, as connected. With pin 11 of the ICM7027 connected to VDD, the gating time is 0. 1 s. This displays tens of hertz at the least significant digit. For shorter


Precision frequency counter
Click here to download the full size of the above Circuit.

gating times, use a 6. 5536-MHz crystal (0. 01s with pin 11 connected to VD and 0. 1 s with pin 11 open)




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Delay circuit for a long time periods ( 4060 )
    Composite-amplifier
    Extended-play-circuit
    Temperature-controuer
    Bipolar Stepper Motor Driver Circuit
    CSC231 Homework
    Electrical_Subsystem
    water level circuit
    solar battery charger circuit schematic
    Simple Siren
    Low power monostable circuit diagram
    INA331 332 configured to directly drive the capacitive input A D converter circuit
    Available voltage booster 400Vp-p output



    Top