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Thread: How to generate a 20Mhz Clock Sognal For ADC

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    Default How to generate a 20Mhz Clock Sognal For ADC

    I want to use the HI1175 ADC from Intersil for my project but it needs an external clock of 20MHz for its operation. I need a simple circuit that will generate a 20MHz clock signal. Preferably an XTAL based circuit. An comment and/or suggestion are welcome. Please reply.

  2. #2
    Senior Member T-1000 debu's Avatar
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    @jitun: The best way to get a frequency, without a trigger is to use a Crystal Oscillator. these are generally 4 pin, you need only supply the Vcc and Gnd, and get the frequency from the 3rd pin.

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    Can you please give me a component number so that I can search for it in the market.

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    Senior Member T-1000 debu's Avatar
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    @Jitun: These are generally reffered to as VCTCXO's. Look for FOX801BE-200, for the 20MHz Fox Electronics Crystal Oscillator, or you could search for RS Part No. 472-0001.

    Regards,

    Debu

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    Senior Member Android
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    As per my knowledge ... just go to (decent) component shop and ask for "Crystal oscillator of 20Mhz" you will get it in 40-45 Rs.
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