Myriad-RF1 : LMS6002D TX PLL Lock

[raju suraj]

Hello Robert,
I have adjusted the TX PLL configuration registers to the appropriate frequency via NINT and NFRAC.

Next calibration requires selecting VCOCAP code by varying from 1 - 63 and observing VTUNE register for a lock condition.

However, VTUNE remains a constant - (00) for all the values of VCOCAP codes and spectrum analyzer shows a frequency that increases from a minimum to maximum of the range in FREQSEL value selected.

May I know if anything is missing from the setup to re-evaluate and ascertain a PLL Lock condition.

THanks

Raju