LMK00338: LMK00338RTAT - Schematic Verification

Dhanalakshmi Durairaj

Prodigy 30 points

Part Number: LMK00338

Hi,

We planned to use LMK00338RTAT PCIe Clock Buffer for our design.

2 Input Clock and 5 Output HCSL Clocks.

We dont need Osc Input and LVCMOS Output.(is there any guidelines for not used pins?)

Please verify the Schematics and send your feedback ASAP.

Thanks & R̥egards

Dhanalakshmi D

over 1 year ago

0 Dhanalakshmi Durairaj over 1 year ago

Prodigy 30 points

PFA

0 Julian Hagedorn over 1 year ago in reply to Dhanalakshmi Durairaj

TI__Mastermind 20900 points

Hi Dhanalakshmi ,

the schematic is hard to read. can you share this again?

OSC input and LVCMOS output pin can be left floating,

regards,

Julian

0 Dhanalakshmi Durairaj over 1 year ago in reply to Julian Hagedorn

Prodigy 30 points

vendor_review_sch_mobiveil.pdf

0 Dhanalakshmi Durairaj over 1 year ago in reply to Dhanalakshmi Durairaj

Prodigy 30 points

Hi Julian,

Thanks for the reply,

PFA above for your review.

Regards,

Dhanalakshmi D

0 Julian Hagedorn over 1 year ago in reply to Dhanalakshmi Durairaj

TI__Mastermind 20900 points

Hi Dhanalakshmi,

you can have CLKIN_SEL1 always pulled low as you only switch between CLKin0 and CLKin1. Due to the internal pull down you can leave CLKIN_SEL open. CLKin_SEL0 needs to be controlled externally, if you switch between inputs.

Connection on REFOUT_EN is ok, but external resistor not mandatory due to internal pull down.

As said before, OSCin can be left floating.

The rest of the schematic looks ok to me.

regards,

Julian

Clock & timing

Clock & timing forum

LMK00338: LMK00338RTAT - Schematic Verification