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TLV320AIC3254 CODEC Application question

Sean Tsai53
Prodigy 30 points
Other Parts Discussed in Thread: TLV320AIC3254

HI ALL 

Can I use HP out L/R to achieve 2.1 channel audio in use TLV320AIC3254 ??

When I use HP out L/R  what  can  I use to commend it ? Or you have any great suggestion 

as below as image is block diagram   

if you have any recommend pls  let me know 

Thanks your  great support

attached the image is block diagram 

  • 0
    TI__Guru 57800 points

    Hi, Sean,

    Welcome to E2E, Thanks for your interest in our products!.

    The 'AIC3254 might be able to be used with this configuration by using the LOL as the Left output, LOR as the right output and HPR as the Mono output. The mono signal can be generated by routing both left and right DAC outputs to HPR output. One thing to consider is that under this configuration, the gain of the HPR output will require attenuation of 6dB to meet the same amplitude of the line outputs.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to Diego Melendez
    Prodigy 30 points

    Hi Diego 

    Thanks your reply  .and I think another question . if i use HP out to achieve woofer function  so need I  add low-pass OP schematic before AMP ?

    AIC3254 include DSP  can support woofer???  

    pls support to reply 

    thanks