TRF7963A: Schematic check request

Koichiro Tashiro

Part Number: TRF7963A

Hi,

I got customer schematic of TRF7963A. This is based on our reference schematic.
Could you review it and give me your feedback?
NFC_schem.xlsx
To keep customer confidential information, only RFID part is attached.
If you need full schematic, I can send it by e-mail.

Thanks and regards,
KoT

over 7 years ago

0 Ralph Jacobi over 7 years ago

TI__Guru*** 135355 points

Hello KoT,

They need to have I/O_0 connected to ground and I/O_1 and I/O_2 connected to VDD_IO.

The pull-up on IRQ shouldn't be needed.

I see they use 2uF and 0.01uF for the filter caps on power supplies, in theory that should be close enough but officially we really have only validated 2.2uF as fully functional and I have to stand by that. VDD_X in particular can cause issues if the filter caps are incorrect. Something to keep in mind.

0 Koichiro Tashiro over 7 years ago in reply to Ralph Jacobi

TI__Mastermind 22945 points

Thanks a lot for your quick reply!
Thanks and regards,
KoT

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TRF7963A: Schematic check request