Audio Specifications

Audio Specifications

[Azhar Mr.]

Hi,
   
  I am trying to play the audio files from OMAP5912 OSK by connecting an amplifier and speakers to the kit at HEADPHONE OUT end. But the output sound is very less whereas I am able to get high sounds when playing from a CD player or tape recorder.
   
                       I think there is an impedance mismatch between OMAP5912 and the amplifier which I am using. Any body Please help me in providing the audio specifications of the processor like output impedance, etc.
   
  Thanking you
   
  With regards
  Azharuddin
   

       
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Re: Audio Specifications

[Dirk Behme]

Azhar Mr. wrote:
> Hi,
>    
>   I am trying to play the audio files from OMAP5912 OSK by connecting an amplifier and speakers to the kit at HEADPHONE OUT end. But the output sound is very less whereas I am able to get high sounds when playing from a CD player or tape recorder.
>    
>                        I think there is an impedance mismatch between OMAP5912 and the amplifier which I am using. Any body Please help me in providing the audio specifications of the processor like output impedance, etc.

You should have OSK5912 schematic if you have a board. If not, have a 
look to section 5.6 (page 48) of

http://omap.spectrumdigital.com/osk5912/files/osk5912_hwspec.pdf

TLV320AIC23 datasheet you can get at

http://www-s.ti.com/sc/ds/tlv320aic23b.pdf

Regards

Dirk