CDCE62005: Recommended pin condition during power up

Taketo Sato

Part Number: CDCE62005

Hello team,

Could you let me know if there is any requirement on below pins during power up? for example, it needs to be pulled to GND, floating is fine, and so on.

AUX_IN
PRI_REF+/-
SEC_REF+/-
SPI_CLK
SPI_LE
SPI_MOSI
SPI_MISO

Best regards

over 2 years ago

+1 vicente flores prado over 2 years ago

TI__Mastermind 20561 points

Hi Taketo,

Aux is for xtal input only. Can be left floating if not used.

Pri_Ref & Sec_Ref, depending on which input you use, connect it with a 1k Ohm resistor to GND.

All the SPI pins can be left floating, will default to logic level 1.

Regards,

Vicente

Clock & timing

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CDCE62005: Recommended pin condition during power up