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  • PCMD3140: PCMD3140 SCH confirmation

    TI Thinks Resolved
    Part Number: PCMD3140 Hi Teams, he customer is using PCMD3140 to develop an audio circuit for a companion robot. Please help confirm if the schematic design is reasonable and provide suggestions. Thank you! 35_VI_MIC.pdf

  • PCMD3140: PCMD3140: VAD sensitivity issues despite updating Page 0x09 Threshold Registers

    Part Number: PCMD3140 I configured the PCMD3140 by following Mir’s script ( https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1611952/pcmd3140-vad-sensitivity-issues-despite-updating-page-0x09-threshold-registers ), but when using digital microphones…

  • PCMD3140: PCMD3140: capture-start-latched modulo-4 phase state produces an in-band (−1)^n self-image (carrier exactly Fs/2) — deterministic reproducer available

    Part Number: PCMD3140 Other Parts Discussed in Thread: PCMD3180 Hi, we are seeing a start-latched signal-corruption state on the PCMD3140 (STM32MP2 host, codec is ASI slave, DSP_B TDM 4×32, BCLK 128×fs = 6.144 MHz, auto clock config, PLL on, two PDM…

  • PCMD3140: PCMD3140: Do you have the source code of PCMD3140 for stm32?

    Part Number: PCMD3140 Other Parts Discussed in Thread: PCMD31XX-DRIVERS Tool/software: We plan to connect PCM3140 to STM32L45, Can you please provide the source code or library of PCM3140?

  • PCMD3140: 4 microphone configuration

    TI Thinks Resolved
    Part Number: PCMD3140 in this chip we are using 4 pdm microphones, and in output we want the I2S stereo output so can we do it using mixer present on this chip to get 2 channel stereo output, If Yes then what configuration we have to use and which registers…

  • PCMD3140: PCMD3140 upto 80Khz

    TI Thinks Resolved
    Part Number: PCMD3140 Tool/software: Is it possible to use the PCMD3140 to capture ultrasound up to 80 kHz from SPH0641LU4H‑1 PDM microphone? If so, how do I configure the Biquad filters in the PurePath Console to extend to 80 kHz? Right now I can’t set…

  • PCMD3140: 0x3C CH_1CFG0

    TI Thinks Resolved
    Part Number: PCMD3140 Hello, Our customer is verifying the ADC function with PCMD310EVM. We are seeing the attached output signal from the 4ch PDM mic input . At the default value of 0x41 CH2_CFG0 to 0x00, Channel 4 output is missing. If we…
    • Answered

  • PCMD3140-Q1: 6 MHz PDMCLK with four PDM Mics?

    Resolved
    Part Number: PCMD3140-Q1 Other Parts Discussed in Thread: PCMD3140 The PCMD3140-Q1 datasheet ( www.ti.com/.../SBASAH3) lists a maximum PDMCLK frequency of 6.144 MHz, but Table 7-60 indicates that the 6 MHz configuration is "applicable only for PDM channel…
    • Resolved
    • Answered

  • PCMD3140EVM-PDK: PPC3, Correct App for PCMD3140 ?

    Resolved
    Part Number: PCMD3140EVM-PDK Other Parts Discussed in Thread: PCMD3140 , PUREPATHCONSOLE Hello. I'm in this state: "Your request for access to ADCX120EVM-SW is now pending while it is being reviewed". I made the request from the PCMD3140EVM request page…
    • Resolved

  • PCMD3140: PCMD3140: VAD interrupts cease to be generated during the active recording phase (PWR_CFG=0x61), despite Bit 3 of the VAD_CFG2 register being set to enable VAD

    Part Number: PCMD3140 I am implementing VAD (Voice Activity Detection) functionality within the Linux driver (tlv320adcx140) for the PCMD3140IRTER codec. I am encountering an issue where VAD interrupts stop generating as soon as an active recording session…

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