AD9518-1 no output

Question

Hello, 
 we design a system with ad9518-1, but AD9518-1 pin outputs DC 1.6V, and the complement pin output DC 2.4V, no clock output, why? 
 Thank you!

ADIApproved · Accepted Answer

Hello Kerb, 
 If the output is static, check the following: 
 1. Is the SYNCb pin low? 
 2. Are you using the PLL? If so, is it locked? 
 Here's a link to the eval software user guide, and it discusses how to bring up the part in general: 
 http://www.analog.com/media/en/technical-documentation/user-guides/UG-075.pdf 
 My guess is that either the PLL isn't configured correctly and isn't locked, or that the SYNCb pin is low. 
 -Paul Kern)

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AD9518-1 no output

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