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.
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.
R1 acts as bias resistor. R2 acts as a current limiting resistor.
CD4060 contains oscillator or astable stage followed by a 14 stage binary counter/divider.
Above circuit works between 5v to 15v.
Please increase supply voltage between 10V to 15V, If circuit fail to oscillate.
Please send your ideas, which are very important for our success…