TMS320F28379D: SPI Extension circuit starter distance

Abdulmaguid Eissa

Part Number: TMS320F28379D

Hi,

In this thread, the document about extending the SPI for long distance, Starting from How long distance shall this extension be used with the 40 Mbps?

over 5 years ago

0 Kevin Allen18 over 5 years ago

TI__Mastermind 45016 points

Hi Abdulmaguid,

If you're thinking of implementing a differential driver/receiver like RS-422, RS-485, LVDS, etc. then it will depend on the drive strength of the differential driver. I believe most driver datasheets will include supported Mbps supported at certain distances.

LVDS, might be your best bet if you're trying for 40 Mbps throughput.

Best,

Kevin

0 Abdulmaguid Eissa over 5 years ago in reply to Kevin Allen18

Prodigy 70 points

Thanks for your response.

I looked into the datasheet of the driver but I did not find any info about the recommended speed ratings and distances. Can you direct me to other documentation that is useful regarding this issue?

Regards,

0 Kevin Allen18 over 5 years ago in reply to Abdulmaguid Eissa

TI__Mastermind 45016 points

Hi Abdulmaguid,

Sorry for the delay.

Here you go: http://www.ti.com/lit/an/slaa844/slaa844.pdf?ts=1588629840019

Best,

Kevin

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TMS320F28379D: SPI Extension circuit starter distance