CDCE949: about the unused port

Vera Mao

Part Number: CDCE949
Other Parts Discussed in Thread: LMK00334-Q1, LMK00804B,

hi dear supporting team,

for CDCE949-Q1,LMK00334-Q1,LMK00804B, if there are unused CLKIN, oscin, how to handle it? should we float it or AC couple to GND? and how about the unused output port such as REFOUT, YN,QN? tks a lot!

over 5 years ago

0 Alan O over 5 years ago

TI__Mastermind 32575 points

Float unused LVCMOS output pins with no trace.

Alan

0 Vera Mao over 5 years ago in reply to Alan O

TI__Expert 5065 points

hi Alan,

thank you very much! so for unused input pins, could all these chips be float? tks!

0 Alan O over 5 years ago in reply to Vera Mao

TI__Mastermind 32575 points

Yes

Clock & timing

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CDCE949: about the unused port