TRF7970A: TRF7970

Laxman G

Prodigy 250 points

Part Number: TRF7970A

In one of our application we are using TRF7970A with above antenna design circuit provided datasheet.

Could any one provide the signal waveforms at each node in Transmission Out pin.

over 7 years ago

0 Laxman G over 7 years ago

Prodigy 250 points

Please do note that we are fine tuned the component values to meet the impedance matching requirements of antenna.

0 Ralph Jacobi over 7 years ago in reply to Laxman G

TI__Guru*** 135355 points

Hello Laxman,

See this document: 5543.TRF79xxA_Test points_05_2013.pdf

0 Laxman G over 7 years ago in reply to Ralph Jacobi

Prodigy 250 points

HI Ralph,

Thank you. The signals are look same as the shared document only but our software team not able to read UID (always FIFO is FF). Could you please provide the RF wavefroms to debug during read and write cycles.

0 Laxman G over 7 years ago in reply to Laxman G

Prodigy 250 points

Hi Ralph,

Could you please share your email id also.

0 Ralph Jacobi over 7 years ago in reply to Laxman G

TI__Guru*** 135355 points

Hello Laxman,

We do not have such a capture available to share, and we have never debugged an issue looking at RF waveforms like that, generally issues are rooted in software implementation and so it is much more valuable to inspect SPI lines.

Also sorry but I do not share my email on E2E. If you need to send anything that is unfit for the public forums you can do so via Private Message accessed through my profile, just click "Connect" for the drop down option.

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TRF7970A: TRF7970