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ADuC848 Crystal Specs

Question asked by Gurmeet on Nov 14, 2011
Latest reply on Nov 25, 2011 by EckartH
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Hi,

 

I have just started using ADuC848BSZ32-5 ( Ver: C21) batch Code: #1113; 2091821.1

 

My problem is few devices are giving good clock output and few are giving clock output with jitter and some are not oscillating at all. Tried changing the crystal, no luck. I am using 32.768 KHz Crystal. Can you please let me know what should be the load capacitance of the crystal ( 6 pf or 12 pF ) ?

 

Do I need to connect a capacitor from pin 32 (XTAL1) or 33 (XTAL2) to Ground ? if yes, what should be its value ?

 

Kindly help me resolve this issue

 

Regards,

 

Gurmeet Singh

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