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  • TPA6166A2: Audio forum

    Part Number: TPA6166A2 We faced one compatibility issue for TPA6166 headphone AMP. A keyboard with audio cable caused windows device manager failed. The Headphone didn’t disappear when we unplug the phone jack from keyboard 3.5 jack, and the headphone…

  • TPA6166A2: Headset impedance measurement

    TI Thinks Resolved
    Part Number: TPA6166A2 Hi team, Just want to confirm about whether TPA6166A2 is able to know the impedance of the headset. Customer would like to use this feature to adjust the volume of sound. Please advised. Thanks! Best Regards, Leroy Song

  • TPA6166A2: Open-drain or push-pull IRQ?

    TI Thinks Resolved
    Part Number: TPA6166A2 Is the IRQ output open drain? It's implied in section 6.5 of the spec, but not specifically listed that way. in the Pin Functions table.
    • Answered

  • TPA6166A2: Schematic review?

    Resolved
    Part Number: TPA6166A2 Other Parts Discussed in Thread: LM358 Would you be able to review the attached schematic? It's largely taken from the TPA6166A2 EVM. "SPKR" and "MIC" are expected to be line level, with a high-impedance single-ended load on MIC…
    • Resolved

  • RE: TPA6166A2: The system cannot detect the headphone when the jack headphone volume is reduced to a low level

    Hi Odyssey, Based on Table 1 from data sheet it seems mic detection is also based on impedance: As mentioned on my previous reply, MIC_IN / IMIC operates individually, so it does not depend on speaker detection. There is no individual interrupt for speaker…

  • TPA6166A2YFFEVM: How could I control TPA6166A2?

    Part Number: TPA6166A2YFFEVM Do I need to use PPC2 to control the TPA6166A2 EVM? If yes, where can I download PPC2, thanks.

  • TPA6166A2: Solution to Reduce TPA6166A2 Pop Noise

    TI Thinks Resolved
    Part Number: TPA6166A2 Hi Sirs, My customer encountered a pop noise problem with TPA6166 when writing 0x07 register (0x07 = 0xb9). We found a workaround by writing the minimum gain of -42dB (0x07 = 0x80) before writing 0x07 to our desired value which can…

  • TPA6166A2: Ferrite bead

    TI Thinks Resolved
    Part Number: TPA6166A2 Hi team, Can my customer use a ferrite bead that is 120 ohms at 100 MHz, or do they need to use something equal or less than 22 ohms at 100 MHz as suggested in the datasheet (since the TPA6166A2EVM does use a 120 ohms, 1.2A part, …

  • TPA6166A2: Question of Noise from TPA6166 Charge-Pump Frequency

    Part Number: TPA6166A2 Hi Sirs, My customer found a 17kHz , -100dBV noise coming from TPA6166 circuit which can rise the system noise floor of the system board. We assume the 17kHz is one of harmonic components from 238kHz switching frequency on charge…
    • Answered

  • TPA6166A2: Question of TPA6166 Measurements of Microphone Amplifier

    Resolved
    Part Number: TPA6166A2 Hi Sirs, I got a problem with TPA6166 microphone amplifier measurement which needs BU's help: (1) Only 250mV full scale input on SLEEVE with CTIA configuration. (2) Lower Output LEVEL on MOUTN then our expection. 1. Test condition…
    • Resolved

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