AnsweredAssumed Answered

ADAU1702 crystal startup problem

Question asked by SpeakerDude on Apr 24, 2014
Latest reply on Apr 25, 2014 by SpeakerDude


I am having a problem with my crystal in my ADAU1702 design. At power up the crystal does not start oscillating until I touch it with my finger.


The crystal I use is 7A-12.288MAAJ-T from TXC. According to the datasheet the load capacitance is 18pF and the shunt capacitance is max 5pF.The capacitors I use is 22pF (NP0)


What could be the reason for my oscillator not to start up properly?


Thanks and best regards