Linux/TLV320AIC3105: tlv320aic3105 96Khz sample rate support

jayalaxmi b c

Part Number: TLV320AIC3105

Tool/software: Linux

Hi Team,

I am using TLV320aic3105 codec for our custom board. Working on 96 Khz sample rate for 24/16 bit. I have gone through the driver code (tlv320aic3x.c), there is only 48Khz/44.1Khz sample rate support, but not for 96Khz. i tried changing pll_q=4, able to hear some audio, but not clearly and also BCLK is not correct. Below I have given below the snap shot of the driver calculation.

Could you please help me in this regard.

Thnaks,

Jaya

over 6 years ago

0 Steve-Wilson over 6 years ago

TI__Mastermind 30210 points

Jaya,

to enable 96kHz mode, you must set up the device for 48Khz, but enable Dual rate mode for both ADC and DAC.

This is done in register 7 using D5 and D6.

best regards,
-Steve Wilson

0 jayalaxmi b c over 6 years ago in reply to Steve-Wilson

Intellectual 320 points

Hi Steve,

Thanks for response.

As shown the code snippet the Dual rate mode for both ADC and DAC is taken care. But when device is set for 48Khz to enable 96Khz we are not hearing any audio in the speaker. It is silent.

Kindly help me in this regard as I stuck for long time.

Thanks and Regards,

Jaya.

0 Steve-Wilson over 6 years ago in reply to jayalaxmi b c

TI__Mastermind 30210 points

Hi Jaya,

Is the AIC3105 in master or slave Mode?

can you read registers 2-9 and provide the configuration?

best regards,
-Steve Wilson

0 jayalaxmi b c over 6 years ago in reply to Steve-Wilson

Intellectual 320 points

HI Steve,

Thanks for your help.

I am using AIC3105 as a master.

Waiting for a response

Thanks,

Jaya

Audio

Audio forum

Linux/TLV320AIC3105: tlv320aic3105 96Khz sample rate support