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TLV320AIC3106: mono_lout audio setting inquiry

Part Number: TLV320AIC3106

Tool/software:

hello.

I have posted an inquiry using the link below, but I would like to ask if there is anything that needs to be modified in the settings.

e2e.ti.com/.../5203902

As in the title, I want a part with MONO_LOUT output.
My current settings are:

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root@am62xx-evm:~# amixer -d
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 127
Mono:
Front Left: Playback 87 [69%] [-20.00dB]
Front Right: Playback 87 [69%] [-20.00dB]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 9
Mono:
Front Left: Playback 0 [0%] [0.00dB] [on]
Front Right: Playback 0 [0%] [0.00dB] [on]
Simple mixer control 'Line DAC',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 118
Mono:
Front Left: Playback 71 [60%] [-23.50dB]
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


If there is anything that needs correction, please reply.

thank you

  • Hi,

    I'm not familiar with your code structure so it's hard for me to understand your settings. But all the settings for MONO_LOP are in Register 73-79. You need to set the signal source (LINE, PGA, or DAC) power up and unmute the signal source, set the output level, power up the driver, and then unmute the driver. 

    Best regards,
    Jeff McPherson