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PCM2912A: PCM2912A: Audio Output for 8ohms Stereo Speaker with Amplifier TPA3118

chunho cho
Prodigy 140 points
Part Number: PCM2912A
Other Parts Discussed in Thread: TPA3118D2,

Dear

In my product I have stereo 10W / 8ohms speakers and interface to the remote CPU board is USB.

I am planning on using the USB Audio Codec PCM2912A and TPA3118D2 to drive my stereo speakers. 

Can you give me recommendations regarding the connection of the Codec and Amplifier? 

How do I connect them properly to get good sound?

  • 0
    TI__Mastermind 39885 points

    Hello,

    Today is a TI Holiday. Your question will be seen by our team tomorrow and you should expect a reply within 48 hours from now.

    Please wait to reply unless we have failed to respond to you in a timely manner.

    Thank you for your patience,

    Jeff McPherson

  • 0
    TI__Mastermind 24245 points

    Hello Chunho,

    Thank you for your patience. Recommended schematic and layout guidelines can be found in the "Application and Implementation" and "Layout" sections of TI datasheets. These are sections 10 and 12 in the PCM2912A datasheet and sections 8 and 10 in the TPA3118D2 datasheet. 

    Section 10 of the PCM2912A datasheet shows a headphone speaker outputs. These outputs can be used as inputs for the analog input pins of TPA3118D2. 

    I hope this helps.

    Best,
    Andrew