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PCM3168A EVM?

Lo2
Expert 1935 points
Other Parts Discussed in Thread: PCM3168A, PUREPATH-CMBEVM

Hello,

for a multichannel audio application I'm looking for a evaluation board for the PCM3168A.

The product page has no link to an EVM, it links to an overview page (Quick Search Selection Tool for Audio) but that does not get me to an EVM.

Is the old EVM "DEM-DAI3168A EVM - PCM3168A Evaluation Module" - users guide SBAU150 (April 2009) discontinued?

I do have a USB_MODEVM INTERFACE board (part of TLV320AIC34EVM), it there a add-on board for the PCM3168A available or planned?

The PCM3168A is listed as active, so I assume it' still recommended for new designs, correct?

Regards,

Lo

  • 0
    TI__Guru**** 189401 points

    Hi, Lo,

    This is a mature product, it's performance is well known in the market, so we made the decision to discontinue the EVM.

    The device itself is very popular in the market, and we plan to sell it for many years. We just didn't feel customers needed EVMs any longer.

    Sorry, it seems like this might not be the case with you.

    What were you planning on doing with the EVM?

    -d2

  • 0 in reply to Don Dapkus
    Expert 1935 points

    Hi Don,

    thanks for the fast reply!

    I wanted to hook it up to my processor evaluation board just  to start writing the TDM mode driver and do some basic tests before the PCB goes into production.
    Main concern is to get the TDM mode working.

    Is there any software available besides the PCM3168A EVM GUI? Any Linux driver stub perhaps?


    Regards,

    Lo

  • 0 in reply to Don Dapkus
    Prodigy 40 points

    I definitely 2nd the need for an EVM board for this audio codec, and any software driver support for Linux/Android that could help get a design off the ground quick would make my life so much easier.

    I'm working for a startup company working on a hardware design that we're hoping this chip will be well suited for. We are without any way to test integrate this codec into our design since spinning prototyping PCBs isn't practical for us. We're rapid prototyping from dev kits and connecting things together with non-permanent bus interconnects. 

    Is there any sort of evaluation board for the PCM3168A? Even the chip mounted on a PCB breakout board would work.

    Thanks!

  • 0 in reply to Todd Rossi
    Expert 1935 points

    Hi Todd,

    we're taking the prototype bringup approach as I can't get an EVM. Can't even get one on loan.

    At least the package is an easy one, so you could just solder on to those TQFP adapters and hook it up to whatever platform you use.

    Regarding the driver, als long as you stick to I2S it will probably work because most processors support a wide variety. I plan to use TDM, that's far less common so I expect some hassle to set it up correctly.

    To test the connectivity a breakout board would be sufficient, even if the audio side would suffer. Looking at the EVM I assume the audio performance was the main design point.

    Best regards,

    Lo

  • 0 in reply to Lo2
    TI__Guru**** 189401 points

    Hey, Todd,

    Thanks for jumping in... Your post actually reminded me that we use this device on another board. I'm not sure if you could use it, or not, but take a look - http://www.ti.com/tool/purepath-cmbevm

    -d2

  • 0 in reply to Don Dapkus
    Prodigy 40 points

    Hi Don,

    Thank you very much for the suggestion to check out the PurePath Console Mother Board. I've had a look through the datasheet and it does include the PCM3168A codec as you said. My only concern would be that the board's purpose seems to be for testing other EVMs.

    Would the board be suitable for evaluating the codec itself? I'd hate to buy the board and find out that its implementation of the PCM3168A codec is too restricted to utilize in a more general purpose way. I guess I'd need to make sure that I'd be able to fully access the codec to be configured and managed by another dev kit. If the codec's implementation is not flexible enough to drive it from an off-board embedded system it won't be likely to work for our prototyping purposes.

    Is there any way we could get this board on-loan so we could determine its suitability? We'd have no problem buying it if it would work for us, but it's tough to justify the expense without knowing for sure.

    Thanks,
    Todd

  • 0 in reply to Todd Rossi
    TI__Guru**** 189401 points

    Hi, Todd,

    Sorry for the delay. The schematic is published in the Users Guide.

    If you are working with a local TI representative, you could ask them for a loaner board.

    -d2

  • 0 in reply to Don Dapkus
    Prodigy 140 points

    Don Dapkus said:
    This is a mature product, it's performance is well known in the market, so we made the decision to discontinue the EVM.



    It is so funny you have big bugs on your own PCB for "well known product" :

    So what was the real reason to discontinue the EVM?