AWR1243: SPI interfaces to FPGA

user5378626

Part Number: AWR1243

According to AWR1243 device sheet ,SPI and other control interfaces are serially connected to resistance .Is it possible to connect directly to the I/O port of FPGA without a resistance?(both AWR1243 and FPGA interface power supply is 3.3V)

over 6 years ago

0 Vivek Dham over 6 years ago

TI__Guru 58035 points

Hello,
Series resister are typically used in high speed digital interfaces to reduce ringing due to ling traces. If your routing is very short and are confident on the signal integrity of your PCB routing you can avoid the series resisters.

Regards,
Vivek

0 user5378626 over 6 years ago in reply to Vivek Dham

Prodigy 170 points

Got it ,thans very much!

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AWR1243: SPI interfaces to FPGA