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TLV320AIC3204: Question of AIC3204's Volume Control Register

Part Number: TLV320AIC3204

Hi Sir,

Would you pls advise the volume control register's configuration range?

With the following configuration process, we can still listen to the weak audio output (noise-like) from LIN1_L/LIN1_R to HPL/HPR with page 0x01, register  0x16=0x17=0x75: 

   TLV320_Write(0x00, 0x00);
   TLV320_Write(0x01, 0x01);
   TLV320_Write(0x00, 0x01);
   TLV320_Write(0x01, 0x08);

   TLV320_Write(0x02, 0x01);
   TLV320_Write(0x34, 0x10);
   TLV320_Write(0x36, 0x40);
   TLV320_Write(0x39, 0x40);
   TLV320_Write(0x37, 0x10);
   TLV320_Write(0x3B, 0x00);
   TLV320_Write(0x3C, 0x00);

   TLV320_Write(0x0C, 0x06);
   TLV320_Write(0x0D, 0x06);
   TLV320_Write(0x09, 0x33);

    # LIN1_L/LIN1_R volume control

   TLV320_Write(0x16, value);
   TLV320_Write(0x17, value);
   
    # LIN2_L/LIN2_R volume control

   TLV320_Write(0x18, value);
   TLV320_Write(0x19, value);

We configured the LIN1_L/LIN1_R's volume at 0x16, 0x17 (range = -63.5dB~+24dB, according to the datasheet), however, we don't see a volume control table in the datasheet and slaa404c guidance.

Would you pls advise

(1) The volume control table of the page 0x01, register 0x16, 0x17, 0x18, 0x19 registers?



(2) How can we disconnect (isolate) the LIN1, INL2 from the mixer complete to avoid crosstalk or noise interference?


Thank you and Best regards,

Wayne Chen
11/30/2017