LMX2694-EP: Timing Requirements

Genesis Liang

Part Number: LMX2694-EP

Tool/software:

Hello,

I'm working with modules that would like to filter the LMX2694-EP's CE and SPI signals to reduce noise on their CCAs/Modules.

Are there timing needs for the CE pin? Rise/fall time needs?

For SPI, are there rise/fall time limits? Thank you!

over 1 year ago

+1 Noel Fung over 1 year ago

TI__Guru** 110060 points

Hi Genesis,

We did not characterize the slew rate of the input digital signal. Some other devices suggest 30V/µs. Is this doable to you?

0 Genesis Liang over 1 year ago in reply to Noel Fung

Prodigy 50 points

Sorry for the delayed reply. If the slew rate is not characterize, would violating the 30V/us suggested cause issues?

0 vicente flores prado over 1 year ago in reply to Genesis Liang

TI__Mastermind 29542 points

Hi Genesis,
Are you violating the slew rate recommendation & is so - by how much?

Regards,

Vicente

0 Genesis Liang over 1 year ago in reply to vicente flores prado

Prodigy 50 points

Hi,

Sorry for the delayed reply. Spoke with team to discuss timing between the different CCAs. I believe we will be able to pull it within the suggested 30V/us. Thank you everyone.

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LMX2694-EP: Timing Requirements