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