SPI buffer for routing long SPI signal traces

Akeng

Other Parts Discussed in Thread: DS90LV048A, SN65LVDT41, DS90LV047A, SN65LVDT14

I have two SPI buses(MISO, MOSI, CLK, CS) with clk running at about 40MHz to 50MHz that need to be routed about 5in to 10in long. Does TI have SPI bus buffer for SPI signals?

Any other solution besides using buffer?

Thanks

over 7 years ago

0 Michael Lu (Santa Clara) over 7 years ago

TI__Mastermind 29635 points

Hi Akeng,

I do not think we have buffers for SPI specifically, but I have heard of users in the past converting SPI signals into LVDS in order to traverse long distances at high speed while maintaining good signal integrity: www.ti.com/.../slla142.pdf

Perhaps a devices like the DS90LV047A/DS90LV048A or SN65LVDT41/SN65LVDT14 may work for your application.

Regards,

Michael

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SPI buffer for routing long SPI signal traces