External crystal oscillator ckt

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Anonymous
Not applicable

 Hi All,

   

 

   

I am using a 32.768 kHz ECO for deriving a highly accurate clock. Pls provide me with CL1, CL2 values for a 28-pin DIP CY8C29466 IC. Also, if there are any other constraints/parameters to be included/altered, list out that too. 

   

 

   

I find an app note saying 22pF values for both CL1 & CL2. Is this correct ? 

   

 

   

Please help,

   

RAM

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ETRO_SSN583
Level 9
Level 9
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The ap note covers layout and xtal considerations in depth.

   

 

   

www.cypress.com/

   

 

   

Keep in mind when you order a xtal you specifiy load C, or pick

   

one with rated load C for the circuit you want.

   

 

   

Regards, Dana.

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