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  • 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

  • RE: PCMD3140: Can't stream audio from 4 PDM microphones

    4PDMw2Analog_ADC3140.ppc3 Hi Tsugumi, Try this file. It's currently set up for 2 PDM inputs (4 channels) and 2 Analog inputs but it should work for your case. If the part is correctly outputting data I can't give much more support since it seems the issue…
    • Answered

  • PCMD3140: Could you provide source code of PCMD3140?

    Resolved
    Part Number: PCMD3140 Other Parts Discussed in Thread: TLV320ADC5140 , TLV320ADC5120 , PCMD3180 Hi Ti We will connect PCM3140 to AM571x, Could you help to Provide the Linux source code of PCM3140 to us? Thanks Qin
    • Resolved

  • PCMD3140: P0_R59_D[1:0]:VREF_SEL[1:0] bit can't find

    TI Thinks Resolved
    Part Number: PCMD3140 Hi team, Customer is working on PCMD3140, and they can't find the VREF_SEL bit. It shows reserved which in the register map address 0x3B. Could you help check about this? Best Regards, Will

  • PCMD3140: Amplitudemodulation at specific frequencies

    Part Number: PCMD3140 We are using IM69D120 MEMS microphones as an input for the PCMD3140. PDM Clk is set to 3.072 MHz and sampling rate is 16kHz the configuration values are: uint8_t regVal = 1; PCMD3140_WrReg ( TI_SW_RESET, &regVal, sizeof(regVal…

  • PCMD3140: PDMDIN2_GPI2(pin19) usage as MICBIAS..

    TI Thinks Resolved
    Part Number: PCMD3140 Hi team, As pin functions table(Table 5-1) in PCMD3140 datasheet descried, I think "PDMDIN2_GPI2(pin19) can be used as MICBIAS output, is it true? If this is true then, MICBIAS function is the default function of the pin? I saw…

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