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CC8520 switching between audio source and sink

Mike Pleskach
Prodigy 20 points


From the datasheet it looks like the chip is designed to be either an audio source or an audio sink, not both at the same time. Could it be used as both? i.e. hopping back and forth between TX and RX? Mono audio is all that is needed for this app. Also, does anyone have info on lower TX DC power consumption? Data is given for 3.5dBm at high data rate, we’d need something lower like -10dBm TX. Thanks,
  • 0
    Intellectual 280 points

    Hello Mike,

    the network role is set in the PurePath Configuration Tool, which generates the image file. So it can not be changed during operation. FW 1.2 will support bidirectional audio streaming. At the moment we are waiting for 1.1 to be released ;-). 1.2 was planed for summer (I think late summer).

     

    Regards,

    Oliver

     

  • 0 in reply to Oliver70185
    Prodigy 20 points

    Thanks Oliver, just what I needed to know.
    Late summer would still work for us so I'll stay tuned

    Thanks,
    Mike 

  • 0 in reply to Mike Pleskach
    TI__Expert 7160 points

    Hi Mike,

    If you operate in external host operation this could be done by having two different images (i.e. a master image and a slave image) stored in your host controller. It's possible to do flash programming over the SPI interface. This way you could switch between master and slave mode by for example pressing a button, or you could do it remotely by informing the device via the data side channel that it should switch role. This requires that your host is big enough to fit both images.

    -Kristoffer