LMK03328: Is reference clock input required when starting VCO calibration ?

Kawai

Guru 19785 points

Part Number: LMK03328

Hi Team,

Please allow me to clarify about the operation of VCO calibration.

Does LMK03328/03318 require reference clock input for VCO calibration ?

Best Regards,

Kawai

over 7 years ago

0 Alan O over 7 years ago

TI__Mastermind 32575 points

Yes, the reference input clock is required and must be stable in frequency so the VCO frequency can be calibrated by digital logic to select the correct cap code before the PLL can be locked.

Alan

0 Kawai over 7 years ago in reply to Alan O

Guru 19785 points

Alan-san,

Thank you for the answer.

Kawai

Clock & timing

Clock & timing forum

LMK03328: Is reference clock input required when starting VCO calibration ?