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TAS5760M: PurePath Console Motherboard + TAS5760xxEVM board

CJ Carnicle
Prodigy 320 points
Part Number: TAS5760M
Other Parts Discussed in Thread: TAS5760XXEVM, TAS5722L

MY customer is trying to hook up a PurePath Console Motherboard (AIP006G) + TAS5760xxEVM board to their 1.8V host and provide the EVM with external I2S signals. However from the user guide online it looks like the I2S signals are 3.3V signals, is this correct? Also, the board they have in hand is different than the one pictured on the web:

http://www.ti.com/tool/PUREPATH-CMBEVM#0

Do you have the user guide and schematics for this particular version, and do you know if this version has any level translators to be able to interface with a 1.8V host?

  • 0
    TI__Expert 6985 points
    Hello CJ! Which version do you have, "G"? If "G". this is the latest rev of the board and the same user guide should apply no problem. Also, the board should be a 3.3 VDC signal.
    Andy, Do you know if any part of the board is populated to enable 1.8V?

    Thanks, Jeff
  • 0
    TI__Guru 52115 points

    Hi CJ,

    See my comments below:

    However from the user guide online it looks like the I2S signals are 3.3V signals, is this correct? 

    [Andy]: Yes.  That's correct.

    Do you have the user guide and schematics for this particular version?

    [Andy]: I will send you the schematic for the Rev G board.

    Do you know if this version has any level translators to be able to interface with a 1.8V host?

    [Andy]:  Even PPCMB (Rev G) can only handle 3.3V I2S inputs. I would suggest your customer use a level shifter to transfer their 1.8v i2s inputs to 3.3 inputs.   TAS5722LEVM can handle 1.8V I2S inputs directly. However,  TAS5722L is only designed for mono applications.

    Andy

  • 0 in reply to Andy Liu (BMS)
    TI__Expert 6985 points
    Thanks Andy!

    Hello CJ! Did this answer your question... if so could you please close the thread? Thanks, Jeff