I'm playing around building an analog style clock circuit, but I'm still missing an accurate oscillator to provide a clock pulse to drive it. Does anyone have a simple circuit that can give a steady 1hz square wave?
I'm playing around building an analog style clock circuit, but I'm still missing an accurate oscillator to provide a clock pulse to drive it. Does anyone have a simple circuit that can give a steady 1hz square wave?
crystal oscillator is pretty much standard and 32.768kHz is very common.
this can be combined with chip like 4060 (14bit binary counter with oscillator).
2^14 = 16384
32768Hz / 16384=2Hz
Is crystal driven 2Hz clock generator close enough for your needs?
Thanks for the ideas! The circuit will be used for a simple digital 12hr wall clock, so it doesn't need to be extremely accurate as long as it can keep within a minute per month.