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Interfacing the DSK6416 with a Wireless Antenna

Preia Motheeram
Prodigy 10 points
Other Parts Discussed in Thread: TRF371125, ADS62P42, TMS320C6416

Hello.

I would like to interface the DSK6416 with hardware that would enable wireless communication between two boards for a SIMO (Single-Input Mulitple Output) system.

To summarise what I am working on, I will have one DSK6416 as a transmitter connected to ONE antenna, and one DSK6416 as a receiver connected to TWO antennas.

This is what I have so far. The TRF3702 is a modulator that will convert the baseband signal from the DSK6416 to an RF signal. The TRF371125 is a demodulator that will convert an RF signal to I and Q baseband signals to be processed by the DSK6416. Both the TRF3702 and the TRF371125 have EVMs.

I would like to use one TRF3702 EVM for the transmit DSK6416 board and two TRF371125 EVMs for receiver DSK6416 board. The receiver board will require additional circuitry. This is because the DSK6416 has two inputs, the MIC IN (mono) and LINE IN (stereo). I require two stereo inputs because I have two TRF371125 EVMs, each representing one received signal. The two TRF371125 EVMs are connected to the one DSK6416 receive board and hence, two inputs to the receive DSK6416 boards.

I thought of using the 5-6k Interface Board for my receiver board and pair it with an ADC EVM that would take the signal from both TRF371125 EVMs and send it to the receiver DSK6416, via the 5-6k Interface board.

Is this a plausible solution to the wireless interface problem, or are there any better suggestions/solutions.

Thank you!

Best Regards.

Preia

  • TI__Guru**** 168745 points

    Hi Preia,

    The 5-6K Interface board will fit on the TMS320C6416 DSK, but that interface board was not really designed to do what you are looking to do.  The board breaks out the EMIF found on the memory expansion connector (J4) and the two McBSP ports found on the peripheral expansion connector (J3) to pin headers found on the 5-6K Interface Board.  The EVM's that were designed to mount on the 5-6K Interface are from the industrial data converter group here at Texas instruments so we don't have anything directly compatible with the I and Q baseband signals (most of our parts run in the sub 1MSPs range).  That being said, you may be able to build up a card using the ADS62P42 that connected to the EMIF interface on the 5-6K Interface board, but there is nothing off the shelf that I am aware of to help with this project.

  • in reply to Tom Hendrick
    TI__Guru**** 168745 points

    Forgot to mention -

    If you do want to try and build up your own board, the pinout and connector spacing of boards that would plug into the 5-6K Interface can be found in TI document number SLAA185 - you can download that here:

    http://focus.ti.com/lit/an/slaa185/slaa185.pdf