SGTL5000 MIC in HP out. error

ztzzzttt — Fri, 01 Feb 2019 08:20:54 GMT

使用2.048M晶振,3V供电.VDDD1.5V内部供电

使用CHIP_ANA_TEST1寄存器对SGTL5000进行测试

MIC接口加信号源: 2V ,1KHz

CHIP_ANA_TEST1.TM_SELECT_MIC 置1

(Enable the mic-adc-dac-HP path)

即CHIP_ANA_TEST1.TM_SELECT_MIC=0x0001;

示波器波形为(黄色为信号源蓝色为HPout)

[2.048m crystal oscillator,3V power supply, vddd1.5v internal power supply

The SGTL5000 is tested with the CHIP_ANA_TEST1 register

MIC interface plus signal source: 2V,1KHz

CHIP_ANA_TEST1. TM_SELECT_MIC buy 1

(to Enable the mic - adc and dac - HP path)

Namely CHIP_ANA_TEST1. TM_SELECT_MIC = 0 x0001;

Oscilloscope waveform is (yellow is the signal source and blue is HPout)]

将CHIP_ANA_TEST1.TM_ADCIN_TOHP=0x0001示波器波形为(黄色为信号源蓝色为HPout))

输出信号已经畸变,

[Chip_ana_test1.tm_adcin_tohp =0x0001 oscilloscope waveform is (yellow is the signal source and blue is HPout))

The output signal has been distorted,]

能否告诉我哪里出了问题

这是我的寄存器配置:

[Can you tell me what went wrong

This is my register configuration:]

//电源配置

sgtl5000write(CHIP_LINREG_CTRL_ADD,0x0002); // add 0x26

sgtl5000write(CHIP_ANA_POWER_ADD,0x077FF); // add 0x30

sgtl5000write(CHIP_REF_CTRL_ADD,0x01C0); // add 0x28 //1CA //0000

sgtl5000write(CHIP_DIG_POWER_ADD,0x73); // add 0x02

HAL_Delay(400);

//时钟配置

sgtl5000write(CHIP_CLK_TOP_CTRL_ADD,0x0800); //add 0x34

while(0x0800!=sgtl5000read(CHIP_CLK_TOP_CTRL_ADD)) ;

sgtl5000write(CHIP_CLK_CTRL_ADD,0x0008);

//关闭短检测

sgtl5000write(CHIP_SHORT_CTRL_ADD,0x000A); while(0x000A!=sgtl5000read(CHIP_SHORT_CTRL_ADD)) ;

//通路选择

CHIP_ANA_CTRL.data=0x0000;

CHIP_ANA_CTRL.SELECT_HP=0x00;// headphone input.0x0 = DAC

CHIP_ANA_CTRL.SELECT_ADC=0x00;

CHIP_ANA_CTRL.MUTE_LO=0x0000;

CHIP_ANA_CTRL.MUTE_ADC=0x0000;

CHIP_ANA_CTRL.EN_ZCD_ADC=0x0001;

CHIP_ANA_CTRL.EN_ZCD_HP=0x0001;

sgtl5000write(CHIP_ANA_CTRL_ADD, CHIP_ANA_CTRL.data); // add 0x24

CHIP_SSS_CTRL.data=0x0000;

CHIP_SSS_CTRL.DAP_SELECT=0x00;//ADC

CHIP_SSS_CTRL.DAC_SELECT=0x03;//DAP

//CHIP_SSS_CTRL.DAC_SELECT=0x00;//DAP

sgtl5000write(CHIP_SSS_CTRL_ADD,CHIP_SSS_CTRL.data); // add 0x0A

//打开AVC增强

DAP_AVC_CTRL.data=sgtl5000read(DAP_AVC_CTRL_ADD);

DAP_AVC_CTRL.EN=0x01;

sgtl5000write(DAP_AVC_CTRL_ADD,DAP_AVC_CTRL.data); // add 0x0100

//打开DAP

sgtl5000write(DAP_CONTROL_ADD,0x0001); // add 0x0100

//增益调整

CHIP_MIC_CTRL.data = sgtl5000read(CHIP_MIC_CTRL_ADD);

CHIP_MIC_CTRL.BIAS_RESISTOR=0x01;//2k

CHIP_MIC_CTRL.BIAS_VOLT=0x01;//1.5V

CHIP_MIC_CTRL.GAIN = 0x0000;//0dB

sgtl5000write(CHIP_MIC_CTRL_ADD, CHIP_MIC_CTRL.data);

CHIP_ADCDAC_CTRL.data = sgtl5000read(CHIP_ADCDAC_CTRL_ADD);

CHIP_ADCDAC_CTRL.DAC_MUTE_LEFT=0x0000;// bit 2

CHIP_ADCDAC_CTRL.DAC_MUTE_RIGHT=0x0000;// bit 3

sgtl5000write(CHIP_ADCDAC_CTRL_ADD,CHIP_ADCDAC_CTRL.data);

sgtl5000write(CHIP_DAC_VOL_ADD,0x3C3C); // 0x10

//测试

CHIP_ANA_TEST1.data=0x0000;

//CHIP_ANA_TEST1.HP_CLASSAB=0x0000;

//CHIP_ANA_TEST1.VAG_CLASSA=1;

//CHIP_ANA_TEST1.TM_SELECT_MIC=0x0001;

CHIP_ANA_TEST1.TM_ADCIN_TOHP=0x0001;

//CHIP_ANA_TEST1.TM_HPCOMMON=0x0001; sgtl5000write(CHIP_ANA_TEST1_ADD,CHIP_ANA_TEST1.data);

CHIP_ANA_TEST2.data=sgtl5000read(CHIP_ANA_TEST2_ADD);

THANKS

Re: SGTL5000 MIC in HP out. error

igorpadykov — Mon, 04 Feb 2019 10:19:23 GMT

Hi ZT

useful examples of sgtl5000 can be found in AN3663 SGTL5000 Initialization and Programming

https://www.nxp.com/docs/en/application-note/AN3663.pdf

and baremetal i.MX6Q SDK examples (zip available on https://community.nxp.com/thread/432859 )

Best regards
igor
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