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Does frequency stability vs temperature vary with pll multiplier....?

Question asked by Venugopal on Nov 4, 2012
Latest reply on Nov 7, 2012 by Venugopal

Hello Everyone,

 

I am using an 18.432MHz TCXO with +/-0.28ppm Frequency Stability vs Temperature. I am feeding this as REFCLK to the AD9913. With PLL Multiplication set to x13, i get a SYSCLK of 239.616MHz. I am generating an output of 32MHz Sinewave. What will be the Frequency Stability of the whole unit vs Temperature...?  Will it remain +/-0.28ppm...? or Will it also increase....?

 

 

Advance Thanks and Regards,

Venugopal YS

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