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TRF7970A：TRF7970A

Xuhui Tao
Prodigy 20 points
Part Number: TRF7970A

We use TRF79XX series wireless communication chip, we intend to use direct mode for P2P transmission and reception.

1. Desiring to transmit using DM0, must I receive using DM1 to access the subcarrier signal directly through I/O_6?

2. If DM0 can be used for reception, can the subcarrier signal be directly accessed through I/O_6? If the subcarrier signal can be directly accessed through I/O_6, is it the envelope signal or the SPI MISO signal?

3. Figure 6-32 in section 6.10.6 of the chip manual. What is represented by the waveform on the left and the waveform on the right of I/O_6 (MISO) in RX Sequence on I/O_6 in DM0 (Analog Capture)? I understand that the left part of the waveform is the received envelope signal, and the right part of the waveform represents the received spi MISO data, is it like this?

  • 0
    TI__Genius 14480 points

    Hello Customer, thank you for your question and interest in our products.

    The forum support of this product has been reduced to first reference our existing documentation and collateral. TI does not have plans to stop production or place the device into a “Not Recommended for New Design” status, we genuinely feel most questions on these devices can be answered by reviewing existing collateral and previous questions asked. Please feel free to continue to use this device as you see fit for your applications. For support, please take a look to the “Similar Topics” section at the lower right of the thread page. In addition, please consult the existing collateral in the “Technical Documentation” section of the TRF7970A product web page along with the Frequently Asked Question document. Alternatively, you can use the search engine of your choice to look for related E2E threads. With each of these resources we believe it will help with your question.