LMX2820: DC Supply connection pins. Are all necessary?

Leonard Cordingley

Part Number: LMX2820

Does the LMX2820 require 3.3VDC to be connected to the VCC_VCO and VCC_BUF power inputs even if the device is operating with an external VCO?

over 2 years ago

0 Derek Payne over 2 years ago

TI__Mastermind 33730 points

Indeed, all supply pins including VCC_VCO and VCC_BUF need to be connected to 3.3V even when using external VCO. Register settings will power down circuitry connected to these power pins as needed in the external VCO case.

Clock & timing

Clock & timing forum

LMX2820: DC Supply connection pins. Are all necessary?