Accurate 1 kilohertz (1kHz) square wave frequency generator schematic
This is a simple, accurate 1 kHz (1 kilohertz) 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. CD4060 contains oscillator or astable stage followed by a 14 stage binary counter/divider. In this circuit pulses at IC1 pin 2 (Q13) divide by 213=8192. When we use 8.192MHz crystal we can get 1 kHz square wave frequency output.
R1 acts as bias resistor. R2 acts as a current limiting resistor.
CD4060 oscillator features – All active components on chip, RC or crystal oscillator configuration, RC oscillator frequency of 690kHZ min. at 15V
CD4060 applications – Control counters, Timers, Frequency dividers, Time-delay circuits
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…