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ADAU1701 12.288MHz clock don't always start=

Question asked by Korey on Oct 1, 2012
Latest reply on Oct 11, 2012 by BrettG

Hi,

 

I'm using a ADAU1701 with a 12.288MHz clock and sometimes it starts and other times it don't. I have a osc crystal with a 7pf shunt capacitance and using 22pf and 100 ohm resistor as the datasheet requires. The PLL_LF has the right components as per spec also. The clock will sometimes come up and other times it don't. Sometimes it comes up and then drops out.

 

Any light you can shed on the issue would be helpful.

 

Thank you for your time and best regards.

 

Korey

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