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  • TLV320ADC3140: TLV320ADC3140 Not Recording Audio on AM62 with Linux Kernel 6.1

    Part Number: TLV320ADC3140 Tool/software: Hello, I'm experiencing issues with recording audio using the TLV320ADC3140 codec on the TI AM62 processor. Despite configuring the device tree and adjusting gain settings, I'm unable to capture any audio. The…
    • Answered

  • TLV320ADC3140: the power supply AVDD of TLV320ADC3140IRTWR

    Resolved
    Part Number: TLV320ADC3140 Tool/software: The default power supply AVDD of TLV320ADC3140IRTWR is 3.0V, and 3.0V is output through the LDO chip. Considering that the output accuracy of the LDO chip varies by 3% with temperature, the minimum voltage is…
    • Resolved
    • Answered

  • TLV320ADC3140: Clocking Tolerance

    Resolved
    Part Number: TLV320ADC3140 Tool/software: We are working on a project utilizing the tlv320adc3140. We want to run it in ASI master mode and provide the MCLK across the GPIO1 pin. We want to provide a 20MHz clock out of the MCU into the 3140. However…
    • Resolved
    • Answered

  • TLV320ADC3140: Writing the BiQuad registers using SPI

    Resolved
    Part Number: TLV320ADC3140 Other Parts Discussed in Thread: TLV320ADC6140 Tool/software: I am having the same problem with the TLV320ADC6140. I can configure the ADC fine and get audio data but now that I am trying to write the biquad registers it is…
    • Resolved

  • TLV320ADC3140: Programming issue, microphone switching/off process

    Part Number: TLV320ADC3140 Tool/software: Hi team One of my customer wants to achieve low power mode by TLV320ADC3140. In low power mode, 4 MICs will shout down to 1 MICs, they want to know how to config the register, and how can we confirm the configuration…

  • TLV320ADC3140: TLV320ADC3140: DC offset issue reproduced when Biquad dynamic update

    Part Number: TLV320ADC3140 Tool/software: We have previously checked the filter update sequence on ADC3140 in the following thread: e2e.ti.com/.../tlv320adc3140-dc-offset-on-i2s-data-out-when-biquad-dynamic-update After implementing this and proceeding…

  • TLV320ADC3140: When use the ADCx140 EVM to test the SNR of analog mic and digital mic, the result have big difference

    Part Number: TLV320ADC3140 Tool/software: Hi Team, May customer are using the ADCx140EVM to test the analog mic and digital mic SNR performance. But the test result have big difference. Could you please help check which settings is wrong? Below is the…
    • Answered

  • TLV320ADC3140: I want to save the Linear PCM digital output as a WAV file.

    Resolved
    Part Number: TLV320ADC3140 Tool/software: There is a Q&A regarding the PCM output of the delta-sigma (ΔΣ) ADC. As stated on page 19 of the specifications, it mentions the pulse code modulation (PCM) data format. Is it correct to understand…
    • Resolved
    • Answered

  • RE: TLV320ADC3140: Resolution Jump and Output Nonlinearity in ADC with Differential Sine Wave Input

    Resolved
    Hi Hattori, It is a linear PCM. Each data word is a fixed bit width that contains the two's complement value of the particular sample. Best regards, Jeff McPherson

  • TLV320ADC3140:Resolution Jump and Output Nonlinearity in ADC with Differential Sine Wave Input

    Part Number: TLV320ADC3140 Tool/software: ADC に正弦波を入力すると、期待どおりの解像度が得られないという問題が発生しています。これについてアドバイスをお願いします。 私の ADC 設計には大きな問題があります。 非線形性チェック 0b0000 : 出力に大きなジャンプがあり、特に MSB 4 ビットがまたは のみを表示する問題があります 0b1111 。アドバイスをお願いします。 動作モード : スレーブモード 電源電圧 : 3.3V 入力タイプ ：差動…

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