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  • PCMD3140: AVDD supply level performance

    Resolved
    Part Number: PCMD3140 For the AVDD supply, the datasheet shows it can be supplied by either 1.8V or 3.3V. Is one preferred over the other? When used with digital mic voltage levels from 0 to 1.8V, is there any performance difference based on the AVDD…
    • Resolved

  • PCMD3140: 4 channel sampling and I2S output format

    TI Thinks Resolved
    Part Number: PCMD3140 Looking at the PCMD3140, it says it supports simultaneous sampling of up to four digital channels for the PDM microphone input, and can convert and output to I2S. How would that work for I2S? Doesn't I2S only have 2-channel capability…

  • RE: PCMD3140: Adjusting the drive strength of PDM CLK

    Hello Tsugumi, My apologies for the late response. The PCMD3140 doesn't have any configurations to adjust the drive strength of the pdm clk line. Regarding your cross-talk issue, could you share a schematic of your application so we could better help…
    • Answered

  • PCMD3140: I2S to PDM converting IC

    Resolved
    Part Number: PCMD3140 Dear team, My customer is looking for a I2S to PDM converting IC. It seems we do have PDM to I2S converter solutions but not vice versa. Do we have a relevant IC to suggest? Thanks, Jay.
    • Resolved
    • Answered

  • PCMD3140: Ch3 and Ch4 does not working

    Resolved
    Part Number: PCMD3140 Hi, I am try to setup PCMD3140 on our board(IMX8MQ) with 4 PDM microphone input. Currently, ASI output channel format as TDM mode and setup 4 channel input, ch1 and ch2 is working well, but ch3 and ch4 is not working. I also according…
    • Resolved

  • PCMD3140: PDM CLK

    TI Thinks Resolved
    Part Number: PCMD3140 Hi there, can the PCMD3140 output two PDM clocks? Using both PDMCLK_GPO1 and GPIO1? Would these clocks be buffered?

  • PCMD3140: I2S Interface

    Part Number: PCMD3140 Other Parts Discussed in Thread: TAS5722L Hello, a couple of questions regarding the I2S interface on this device. Does TI recommend any PU/PD on the lines? SDOUT/SDI, BCLK, FSYNC / LRCLK? Can the PCMD3140 and TAS5722L share the…

  • PCMD3140: PDM Routing

    Part Number: PCMD3140 Hello, We are looking to use the PCMD3140 to interface with 4 microphones. Our microphones will be split into pairs in our application where the PDM clock will need to run to the back and the front of the system. The front and back…

  • PCMD3140: Ch3 and Ch4 freezed

    Part Number: PCMD3140 Hi, I have two PCMD3140 (Recorder) in 8ch TDM configuration (32bit/48kHz) and need help with channels on PDMDIN2: Recorder1: Ch1 --> Slot 0, Ch2 --> Slot 1 ... Recorder 2: Ch1 --> Slot 4,... Ch4 --> Slot 7 Ch1 and Ch2…
    • Answered

  • PCMD3140: I2C signal issue

    Resolved
    Part Number: PCMD3140 Hello, I am currently testing the PCMD3140 using the PCMD3140EVM-PDK. My EVAL configuration is as following : - USB Powered - Using the on board PDM Microphone - The jumper setup identical to the eval user guide - Software : PPC3…
    • Resolved

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