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Recent content by RJM

  1. R

    60 Hz sine wave to TTL clock signal (pulse shaping help)

    Or, Vin = 12VRMS (17.98V P-P) 60HZ
  2. R

    How to generate 10MHZ , square wave , ( from zero up to vcc ) , with very low jitter

    You could could start with one of these. **broken link removed** 2% frequency accuracy. Or 20Mhz divide by 2 = 1%, Or 40Mhz divide by 4 = 0.5%
  3. R

    How to generate 10MHZ , square wave , ( from zero up to vcc ) , with very low jitter

    If you start with any 20MHZ square wave oscillator, no mater what the duty cycle, and pass it through an edge triggered flip-flop you will end up with a 10MHZ square wave with a perfect 50% duty cycle. Just use a crystal oscillator. To be even more accurate you could start with a 2560MHZ...
  4. R

    How to generate 10MHZ , square wave , ( from zero up to vcc ) , with very low jitter

    Start with 20MHZ, divide by 2 (flip-flop) = 10MHZ 50% duty cycle.
  5. R

    Square wave conversion

    The easiest way, maybe not the best. (The ground lead of the 7805 draws about 5ma of current.)
  6. R

    [SOLVED] OpAmp noob - mV Amplifier - help needed !

    The LM324 will not allow you to get 4V output with a 5v rail. From the data sheet - Large output voltage swing 0V to V+ − 1.5V. You would only get 3.5V.

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