Hi Team,
Please advice me resolving no lock problem.
I am using LMK05028WVM with default configuration.
I applied 5V DC power and 25.000 MHz CMOS clock from a function generator
following the EVM user's manual.
The LED D8 and D9 (DPLL1 and 2 Hold over status) turned on and off corresponding
to the absence of the 25 MHz reference clock.
However, LED D12 and D13 (DPLL1 and 2 Los of lock status) never turned off at all.
I have checked frequency accuracy. It was 25.0001250 MHz.
The reference clock toggled between 0v and 2.0 V.
can you advise me to identify the inappropriate settings or set up.
Beside amplitude and frequency accuracy, are there any aspects you should checked out?
Mita
