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  • PCM1789-Q1: PCM1789-Q1 - Evaluation Board & Reference Design

    Resolved
    Part Number: PCM1789-Q1 Other Parts Discussed in Thread: NE5532A , OPA2134 Hi Team, We’re planning to use the PCM1789-Q1 in our design and would like information on the available evaluation board, including its part number, as well as any relevant reference…
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    • Answered

  • PCM1789-Q1: Evaluating the OPA1679-Q1 as an Automotive-Grade Alternative for the PCM1789-Q1 External LPF

    Resolved
    Part Number: PCM1789-Q1 Other Parts Discussed in Thread: OPA2134 , NE5532A , Hi Team! Regarding the External LPF design of PCM1789-Q1, the op-amps recommended in the datasheet (NE5532A and OPA2134) are not automotive-grade components. Would the OPA1679QRUMRQ1…
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    • Answered

  • PCM1789: ATTENUATOR REGISTER

    Resolved
    Part Number: PCM1789 VOLUME CONTROL FUNCTION WHAT WOULD PREVENT VOLUME FROM CHANGING WHEN THE CONTENT OF REGISTERS 24 AND 25 ARE ALTERED. MY OUTPUT LEVEL IS APPROX 75 mVPP. THE APPLICATION USES I2C FOR CONTROL. REGISTER CONTENTS C0 00 00 00 00 03…
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    • Answered

  • OPA1679-Q1: Evaluating the OPA1679-Q1 as an Automotive-Grade Alternative for the PCM1789-Q1 External LPF

    Resolved
    Part Number: OPA1679-Q1 Other Parts Discussed in Thread: OPA2134 , NE5532A , PCM1789-Q1 , NE5532 , Hi Team! Regarding the External LPF design of PCM1789-Q1, the op-amps recommended in the datasheet (NE5532A and OPA2134) are not automotive-grade components…
    • Resolved

  • PCM1789: PCM1789PWR

    TI Thinks Resolved
    Part Number: PCM1789 Tool/software: On the PCM1789 I am getting a rather loud audio "pop" when releasing the Reset even if the Mute Is on (Low). Is this due to the Vout quickly rising to 0.5 * VCC1; the voltage level offset? Is there any thing we…

  • PCM1789: Need a schematic for headphone DAC with I2S input

    TI Thinks Resolved
    Part Number: PCM1789 Tool/software: I'm trying to make a headphone DAC with a PCM1789 I have laying around. My bluetooth module have I2S output. My aim is to operate the DAC in HW mode. With differential output for my headphone. Is the schematic…

  • PCM1789: PCM1789 Parallel hard ware control mode

    TI Thinks Resolved
    Part Number: PCM1789 Dear PCM1789 is hardware mode , How to connect A and B hardware corresponding to Zero1 and Zero2? Please review the SCH? thank!
    • Answered

  • PCM1789: Register writes are successful but do not affect behavior

    Resolved
    Part Number: PCM1789 Other Parts Discussed in Thread: PCM1804 Tool/software: I'm trying to set the filter roll-off to compare the two filter modes of the DAC. I'm not successful in changing the setting over I2C. In order to have something that's easier…
    • Resolved

  • PCM1789: Required clarification on Thermal resistance data

    TI Thinks Resolved
    Part Number: PCM1789 Tool/software: NA It has given two different Rthja - thermal resistance value in datasheet 87.8degC and 115degC for TSSOP-24pin package. Please clarify the difference between two value. And for IC power dissipation calculation…

  • PCM1789: SNR and THD over high issue

    TI Thinks Resolved
    Part Number: PCM1789 Other Parts Discussed in Thread: PCM1798 Tool/software: Hi Sir, My customer tested the audio DAC performance of PCM1798, they got some test results over high for SNR and THD. Could you please help to review the scheamtics to advise…

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