ali ghafoor
Member level 4
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how to extract the Lock Time information from DDS datasheet. i am using ad9915..if i program it using its parallel port..how much time it takes to transit from one frequency to another frequency(that is called its lock time)?? minimum write time for ad9915 is 10.5 nsec according to datasheet..and i need to write two times to update FTW (FTW=32 bits and ad9915 supports writing 16 bits in one clock cycle). will the lock time be equal to 21 nsec?? i am using system reference clock=2.5 GHz
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