Why TAS3103 no audio signal output?

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KevinChen

Member
Joined 2007
I'm working on a project using the TI TAS3103. From SDIN input I2S audio signal,but SDOUT no output. I use a MCU control TAS3103 by I2C bus. I can read and write the register of TAS3103.
I issue a command(0x00432433@0xF9).

Has anyone had this problem? Please help me,thanks a lot!
 
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KevinChen

Member
Joined 2007
My test code

Dbuf.SubAddr = I2S_FORMAT_SUB_ADDR;
Dbuf.Data.B_Data[0] = 0x00;//0x04;
Dbuf.Data.B_Data[1] = 0x43;//0x40;
Dbuf.Data.B_Data[2] = 0x24;
Dbuf.Data.B_Data[3] = 0x33;
TAS3103_SendData(&Dbuf,4);

Dbuf.SubAddr = G_TO_Y_SUBADDR;
Dbuf.Data.B_Data[0] = 0x00;
Dbuf.Data.B_Data[1] = 0x80;
Dbuf.Data.B_Data[2] = 0x00;
Dbuf.Data.B_Data[3] = 0x00;
TAS3103_SendData(&Dbuf,4);

Dbuf.SubAddr = H_TO_Z_SUBADDR;
Dbuf.Data.B_Data[0] = 0x00;
Dbuf.Data.B_Data[1] = 0x80;
Dbuf.Data.B_Data[2] = 0x00;
Dbuf.Data.B_Data[3] = 0x00;
TAS3103_SendData(&Dbuf,4);
 
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KevinChen

Member
Joined 2007
I have slove this problem.

I have solve this problem. It can not work is due to I2S bit clock is not right.
I set codec as 24bit 48KHz. It can not work when I set TAS3103`s LRCLK as 48KHz,BCK as 1.536MHz. It can work when I set TAS3103`s LRCLK as 48KHz,BCK as 3.072MHz.
 
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UPULPP

Member
Joined 2010
Tas3103

Hello everyone!
I'm new to dsp audio processing...:confused:
we're assigned to do a dsp audio frequency equalization +agc+ noise filtering project and I'm interested in this TAS3103 chip. Any one here that can help me to give a clear idea about this chips' capabilities?
Any source codes or advices are greatly appreciated.:)
 
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