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    Answered

  • PCM2704C / PCM2705C Volume Control

    Resolved
    Other Parts Discussed in Thread: PCM2705C , PCM2704C , DIR9001 , PCM2704 We are planning to use one of the parts listed above (PCM2704C / PCM2705C) in a desktop speaker with a USB input. Please confirm if these parts will allow an end user to control the…
    • Resolved

  • RE: PCM2707C: Change descriptor data through SPI

    The device descriptor can be modified through the SPI port (PCM2705C/7C); this descriptor programming function is only available when PSEL and HOST are high as you did. More functional details can be found in section 9.5.1 USB Interface Please check the…

  • TPS65981: Errant VBUS Voltage

    TI Thinks Resolved
    Part Number: TPS65981 Other Parts Discussed in Thread: PCM2705C TPS65981_RCLAMP0582_CONNECTIONS.pdf Hello, We have a board design that uses both a TPS65981 and PCM2705C to provide 5V, 3A charging and USB audio from an Ipad. All prototype/breadboard testing…
    • Answered

  • PCM2704C: Without external ROM.

    Resolved
    Part Number: PCM2704C Other Parts Discussed in Thread: PCM2705C Hi team, My customer wants to use PCM2704C. Does it work by default setting without external ROM? Some models want to eliminate ROM to reduce costs. And, if it can use without ROM, how to terminal…
    • Resolved

  • RE: TPS65981: Internal ESD Structures

    Hi Ben, It's better to confirm with PCM2705C team, you can post the question in the product's e2e forum. Regards, Peter

  • LM49370: bidirectional I2S to PCM converter ?

    Part Number: LM49370 Other Parts Discussed in Thread: PCM2705C , TUSB4041I , PCM9211 , TLV320AIC3212 , PCM2912A , LM49350 Dear TI-er My customer want bidirectional I2S to PCM converter. I saw the post with link below. AN-1591 LM49370 PCM/I2S Bridge He will…
    • Answered

  • RE: PCM2704C: ROM DESCRIPTOR DATA MODIFICATION

    Resolved
    The PCM270xC does not require a specific driver. Please clarify: You are using the PCM2704C or the PCM2705C? Only the 2704C supports the external ROM. Can you verify the voltage on your test points (JP9 and JP12)? On my EVM both lines are 3.3V, so I believe…

  • RE: PCM2704C: Enabling VoutR and VoutL

    Hi Roy, You can use the HID0 mute pin on the PCM2704C, or the HID0 mute function over SPI on the PCM2705C. Thanks, Paul
    • Answered

  • RE: PCM2900C: Is there a better way to take USB Audio data and convert it to analog?

    Resolved
    Hi, Brian, The PCM2900C is a simple USB-Audio codec that is able to send USB audio through stereo analog outputs. If only analog audio output is required, maybe a USB DAC could be selected, like the PCM2705C. Either the '2900 or '2705 will be recognized…

  • RE: Can I change the PCM2707 IC S/PDIF output volume by setting the IC volume control HID commands thru its SPI bus?

    R. B. I'm very sorry for the confusion. Actually volume HID status can be controlled through SPI on PCM2705C and PCM2707C. But it is unable to control the digital interface volume. I think the digital interface volume can be controlled from software…

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