joining 4060's

Aug 12, 2005 3 Replies

to get a certain frequency output I have joined 2 4060 IC's, feeding the clock input on the first by a crystal oscillator and then taking the last output into the clock input on the second. based on the crystal I have, my output from the first IC on pin 3 should be 300 Hz, but feeding this into a stepper motor control I get one pulse a second or so. Other outputs on the first IC produce various speeds that "sound" about right (the motor spins rather than clicking slowly round), so I dunno what I'm missing. How should the daisy chain be configured? I connected the MR to earth on the second IC and now the motor stutters unpredictably so maybe that was a wrong step, but does the second 4060 need any other components?



I was following the suggested layout at the bottom of

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but my crystal is



4.9152Mhz. Thanks James

Never mind all that crap you're spouting about your failures, what is it that you want to accomplish?

my

a

I am basically trying to feed a stepper motor control circuit with a certain speed pulse. For my application, the motor speed is important. As it turns out, I've sorted the problem now anyway - the earth wire to the first IC on my test circuit had a dodgy connection which explained the odd behaviour but thanks for your help anyway.

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