20 MHz + PLL vs 48MHz

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  1. - 27th July 2006, 23:15 #2
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    Demon, The reason for using a lower crystal frequency is to reduce the emitted rf from the oscillator circuit. The higher you go in main oscillator frequency the more possible harmonics you can produce thru the crystal circuit and the PCB traces.
    Dave Purola,
    N8NTA
    Last edited by Demon; - 4th October 2016 at 17:59.
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