The expected frequency of the configuration is 9.6 GHZ, but actually the frequency we got is about 8.7GHZ, and cannot be locked.pls help to check the reason,thank you .
I apologize for the lengthy delay - having some difficulties getting EZ synchronized with Outlook lately so unfortunately some inquiries aren't making it to me.
I see several issues with the register settings.
REG 5 should be a busy binary number: 654321h or 50F1CDh - either one should be fine, not the primary problem I don't think.
REG7: Try 20C862 or 30C862 (DLD) - sets the lock detect window when using a 50MHz PFD freq.
REG9: Should be 3FFFh - you have enabled max Icp offset, no Icp offset needed in INT mode.
Be sure to write REG 3 last in INT mode and REG 4 last in FRAC mode.
Hope this helps,
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