AnsweredAssumed Answered

SS2529 can not output audio signal

Question asked by ADI_XUN Employee on Aug 22, 2014
Latest reply on Sep 30, 2014 by DaveThib

Hi  all

Here is a customer who is using our SS2529. Below is this customer register setting. The input is I2S  48kHz/24bit . But this customer can not get the audio output . is there some recommend register settings for this part?

 

0x00,0x24//256*Fs=12.288
0x01,0x21//ASR
0x02,0x02//I2S  44.1kHz/48kHz
0x03,0x40//(L+R)/2 OUTPUT
0x04,0x10//5V
增益,时钟丢失检测禁用
0x05,0x40//
设置音量;//DSP 前置音量
0x07,0x01//
0x08,0x0a//fi*2=12.288MHz
0x08,0x23//fi=48*256=12.288MHz
0x09,0x00//
0x0a,0x00//
0x0b,0x00//
0x0c,0x00// N=M;N/M=1
0x0d,0x20//R=4,X=1
0x0e,0x03//
0x14,0x03//48k low pass
0x15,0x0d//150Hz high pass  enable  HLF 
0x56,0x06//0.3mS 
检测
0x57,0x59//
0x58,0x3b//att=0.3mS  rl=1.5s
0x59,0x2a//limitter THR=-15dB
0x5a,0x3e//compressor THR=-25dB
0x5b,0x29//max compressor output=-15.5dB
0x5e,0x07
0x5f,0x02
0x60,0x3f
0x82,0x34//SPK DCR=6.5R

 

Read back register as below:

 

0x00,0x24//256*Fs=12.288
0x01,0x21//ASR
0x02,0x02//I2S  44.1kHz/48kHz
0x03,0x40//(L+R)/2 OUTPUT
0x04,0x10//5V
增益,时钟丢失检测禁用
0x05,0x40//
设置音量;//DSP 前置音量
0x07,0x71//
0x08,0x0a//fi*2=12.288MHz
0x08,0x23//fi=48*256=12.288MHz
0x09,0x00//
0x0a,0x00//
0x0b,0x00//
0x0c,0x00// N=M;N/M=1
0x0d,0x20//R=4,X=1
0x0e,0x0f//
0x14,0x03//48k low pass
0x15,0x0d//150Hz high pass  enable  HLF 
0x56,0x06//0.3mS 
检测
0x57,0x59//
0x58,0x3b//att=0.3mS  rl=1.5s
0x59,0x2a//limitter THR=-15dB
0x5a,0x3e//compressor THR=-25dB
0x5b,0x29//max compressor output=-15.5dB
0x5e,0x07
0x5f,0x02
0x60,0x3f
0x82,0x34//SPK DCR=6.5R

Outcomes