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  • PCMD3140: Microphone synchronization sampling

    TI Thinks Resolved
    Part Number: PCMD3140 Other Parts Discussed in Thread: PCMD3180 Tool/software: Hello E2E Team, We have a new design which requires the synchronized sampling of 16 PDM microphones. In our design the sample rate of each Mic should be 48Khz with a…
    • Answered

  • PCMD3140: How to test the pcmd3140 evk based the board of DC133C using PPC3

    Resolved
    Part Number: PCMD3140 Other Parts Discussed in Thread: , TLV320ADC3120 Dear All: I have a EVB of ADCx120EVM-PDK, PCMD3140EVM-PDK (DC133 C) Evaluation Module as shown below. We would like to test the audio function using PPC3 app with the DC133C board…
    • Resolved
    • Answered

  • PCMD3140: MCLK Can Only Be 12, 12.288, 13, 16, 19.2, 19.68, 24, or 24.576?

    Resolved
    Part Number: PCMD3140 Tool/software: Does MCLK really have to be one of the 8 frequencies listed? It seems a bit strange given that the part has a PLL, and I do plan to use the PLL, as the DS says it is required for best performance. I am master mode…
    • Resolved

  • PCMD3140: PCMD3140IRTER on STM32MP13 (Kirkstone BSP): Only One PDM Microphone Channel Working

    Part Number: PCMD3140 Tool/software: Hello everyone, I'm working on porting the PCMD3140IRTER codec to the Kirkstone BSP on an STM32MP13 platform. At the moment, I have connected only two microphones (presumably the left and right ones) to the PDMDIN1_GPI1…
    • Answered

  • PCMD3140: Drive strength of PCMD3140

    Resolved
    Part Number: PCMD3140 Hello, Related to previous question I asked here ( E2E ) , I want to know the drive strength value for this chip. I understand that this is not configurable, and we have a workaround to solve the issue but for future reference…
    • Resolved

  • PCMD3140: Floating Pins

    TI Thinks Resolved
    Part Number: PCMD3140 Hi, I was wondering what would happen in the cases where the BCLK or GPIO inputs were left floating/had no driving sources? Thank you, Matthew Bavier

  • PCMD3140: powerup

    TI Thinks Resolved
    Part Number: PCMD3140 Hi team, if write only page 0 register after exiting sleep mode, The device can correctly power up? the device reqire for writing page2-4？ regards, Shoo
    • Answered

  • PCMD3140: questions about audio PDM to I2S converter with long lines

    Resolved
    Part Number: PCMD3140 Other Parts Discussed in Thread: DS90LT012A Tool/software: Hello TI, I'm a new audio designer, and now I'm designing a circuit of convertering the PDM to I2S but with long lines which exceed 20 cm. I selected the PCMD3140 here…
    • Resolved

  • PCMD3140-Q1: FSYNC Frequency Tolerance around 96 kHz

    TI Thinks Resolved
    Part Number: PCMD3140-Q1 Other Parts Discussed in Thread: PCMD3140 Tool/software: I would like to operate the device with the FSYNC frequency slightly (~1-2%) off 96 kHz to synchronize with external devices. Will this pose a problem for the internal operation…
    • Answered

  • PCMD3140-Q1: Power-up state of SDOUT

    Resolved
    Part Number: PCMD3140-Q1 Tool/software: Immediately upon providing power to AVDD and IOVDD, before providing a clock signal to GPIO1 or communicating via I2C, will SDOUT be high, low, or tri-stated? Thanks.
    • Resolved

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