Accurate 1 kHz Square Wave Crystal Oscillator Circuit

 Accurate 1 kHz Crystal Oscillator Circuit Diagram 1khz cd4060 hfe4060

Accurate 1 kilohertz square wave frequency generator schematic

This is a simple, accurate 1 kHz square wave crystal oscillator circuit using frequency divider IC and crystal.

1kHz Circuit

PARTS LIST
C1 22pF  ceramic
C2 22pF ceramic
C3 0.1µF mylar
R1 10MΩ ¼W
R2 220Ω 100Ω ¼W (R2 change to 100Ω because sometime circuit fail to oscillate)
XTAL 8.192MHz crystal
IC1 CD4060

 

Our circuit uses a CD4060 ripple carry binary counter to divide the crystal frequency. In this circuit pulses at IC1 pin 2 (Q13) divide by 213=8192. When we use 8.192MHz crystal we can get 1kHz square wave frequency output.

8.192MHz/8192=1kHz

R1 acts as bias resistor. R2 acts as a current limiting resistor.

1kHz oscillator circuit output waveform

1 kHz oscillator circuit output waveform

CD4060 pinout

CD4060 pin configuration

CD4060 contains oscillator or astable  stage followed by a 14 stage binary counter/divider.

Above circuit works between 5v to 15v.

UPDATE: (09/08/2018)
Please increase supply voltage between 10V to 15V, If circuit fail to oscillate.

1 kHz Crystal Oscillator Circuit CD4060 1khz square wave frequency generator 1 khz square wave generator hfe4060


Please send your ideas, which are very important for our success…


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2 comments on “Accurate 1 kHz Square Wave Crystal Oscillator Circuit
  1. Edwin says:

    Nice design and simple. I am looking for a straight 30khz signal. So i figure using a 7,68Mhz crystal and dividing by 256 gives me excactly that.

  2. 8.192MHz crystal false
    8.192KHz crystal ok

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