LMX2820: Read Back Register VCO_CAPCTRL

User001

Part Number: LMX2820

Hi Team,

We noticed VCO_CAPCTRL Register Value (R22) is not matching with it's Read Back Register value (R74) for both Auto VCO Calibration (Fcal_En=1) and Forced VCO Calibration Values. (Example frequency is 11301MHz).

Please let us know the reason/ how to solve this?

Thanks

over 2 years ago

0 Ajeet Pal over 2 years ago

TI__Genius 12560 points

Hi There,

That is correct observation. When the VCO calibration values are forced then the readback values are not correct but those can be neglected as you are writing the known values after reading back the data from auto VCO calibration.

Thanks!

Regards,
Ajeet Pal