It seems my post went to the general forum... Here's it again..
I recently purchased this eval board. After setting up the required power supplies, SMA cables etc just started testing the board.
I have only a 100MHz oscillioscope, so can not directly view the 12 GHz o/p from the board.
So I would like to infer the o/p signal by tapping the N-Divder o/p using the programmable MUXOUT pin.
Currently I use a discrete 50ohms resistor for VCO/2 SMA connector termination.
The board is getting connected and all the register writes etc are ok.
But I don't see the LOCK DETECT LED ON. There's no Lock detect at MUXOUT either.
No N-Divider o/p on the MUXOUT pin when I select it.
All supply voltages are ok and I could get R-Divide & R-Divide/2 o/p on the MUXOUT pin.
I could also get oll the VDD and GND signals on MUXOUT pin.
I don't see any sign of signals on the VCO/2 or EXT_VCOOUT or CPOUT connectors.
Tried various register settings but no use so far.
Could anyone suggest what's wrong with the board and best way to tap the N-Divider signal for viewing?
Thanks in advance.