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CLKIN in blackfin ADSP- BF592

Question asked by vinodkaruvat on Oct 31, 2014
Latest reply on Dec 4, 2014 by vinodkaruvat

Hello Friends,

 

The datasheet explicitly states that when using external clock TTl rules need to be followed.

 

"If an external clock is used, it should be a TTL-compatible signal

and must not be halted, changed, or operated below the specified

frequency during normal operation."


TTL is about 5V. How is that possible. Also the eval board shows a clock with 3.3V.

 

AM I getting something wring here. Kindly assist me pls.

 

 

Vinod

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