Issues with External Clock input (Repost)

(This is a repost since the first once was posted with a small font!)

Hi all,

I hope someone can shed some light on this for me.  I am working with an FMC150, and need to supply an external clock for the ADC. I have followed the datasheet, and run many different configurations, but I have had no luck in getting a clock into the ADC when using the External Clock input. I have included the configuration words below for each register in the CDCE72010 (they are written to the CDCE72010 by an FPGA – I have verified the writing process is correct, as changing configurations e.g. output division, enable/disable of the VCXO etc. is successful). Since the system configuration is simple (clock input to the FMC card; OUT_MUX to AUX IN (to output dividers); Output 2 divider enabled (div by 1 in this case); and output 2 buffer type set to LVPECL. If I configure for this, and supply an appropriate clock source (an Agilent signal generator at 175MHz at 3dBm into 50 Ohms), I get no response from the ADC. What could be the problem?

Thanks,

Andrew

Configuration Words:
683C0250, 

68000271,

83400002,

68000003,

E9800004,

68000005,

68000006,

83400007,

680001D8,

680500C9,

05FC270A,

8200040B,

60009B0C;

This topic is being closed because the issue is considered as resolved by 4DSP. Feel free to create a new topic for any further inquiries.