TLV320AIC3254-Q1: the output sound become 2k tone when play 1k tone

Hi Daniel,

Please provide the clock frequencies provided to the device. How are you playing the tone to the device?

Best regards,
Jeff McPherson

Dear Jeff

I found that does because i choose 2-channels to playback.

If i playback with 1-channel, the 1k tone still be 1K tone.

Do you have any idea about this condition?

We found there another issue.

The output voltage level of audio code is too low.

LO Gain 0
PCM Gain 143
voltage 15mV

We use QC's tool to play an 1K tone.

do you mean the "clock frequencies" BLCK?

MCLK : 12MHz

BCLK : 1.536 MHz

WCLK : 48 kHz

What does this two register should be

#define AIC32X4_LOLGAIN AIC32X4_REG(1, 18)
#define AIC32X4_LORGAIN AIC32X4_REG(1, 19)
I adjust this register but the volume did not become lounder
Do you have any comment about this case?

/ # qtitinymix "LO Driver Gain Volume"
LO Driver Gain Volume: 35 35 (dsrange 0->35)

/ # i2cset -fy 2 0x18 0x00 0x00 b
/ # i2cdump -fy 2 0x18
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 60 00 07 92 20 00 00 00 00 88 82 00 80 02    ..`.?? ....??.??
10: 00 08 88 82 80 01 00 04 00 00 01 00 00 01 84 00    .?????.?..?..??.
20: 00 00 00 00 88 cc 11 00 00 00 00 00 00 00 00 00    ....???.........
30: 00 00 00 00 08 12 03 02 04 00 00 00 01 01 00 d4    ....?????...??.?
40: 00 d8 d8 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3    .??.o8.....???~?
50: 00 00 88 00 00 00 00 00 7f 00 00 00 00 00 00 00    ..?.....?.......
60: 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

/ # i2cset -fy 2 0x18 0x00 0x01 b
/ # i2cdump -fy 2 0x18
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 01 00 01 00 00 00 00 00 00 0c 00 10 00 00 08 08    ?.?......?.?..??
10: 40 40 1d 1d 00 00 00 00 00 00 00 00 00 00 00 00    @@??............
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
30: 00 00 00 00 00 00 40 00 00 40 00 80 80 00 03 30    ......@..@.??.?0
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 00    ...........?....
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Dear Jeff

Should i modify the "DAC Left Playback PowerTune Switch" config?

The default was P3, however, P3 seem let "LO Driver Gain Volume" not work.

If i change it, the "LO Driver Gain Volume" become work, sometimes.

Do you have any comment about this?

Dear Jeff

Another question, does this codec need load FW?

Thank you 

Hi Daniel,

No there is no firmware for this device. It only needs I2C configuration at start up. The memory is volatile and will not be stored on power down.

Powertune does not need to be changed to change LO Driver Gain Volume. After loading your settings that you provided earlier I can change the LO volume on my test board. However your volume was already at maximum (0x1D). You cannot make it louder than this, only softer.

Best regards,
Jeff McPherson

Dear Jeff

However, the LO gain not the maximum 

I try to change the LO gain and register was changed but the sound not be change

What kind of information do you need?

Thank you very much

Hi Daniel,

Can you detail for me all your power supplies? What is the voltage of LDO_Select Pin?

You are still seeing 15mV output?

Best regards,
Jeff McPherson

Dear Jeff

It is 3.3V for LDO_select, and not GND

If the sound level low,, it is 15mV output.

and we can not change the level by "LO Driver Gain Volume"

The strange point is that

The "LO Driver Gain Volume" become work after i config the  "DAC Left Playback PowerTune Switch" to another one

(i mean that change it to P1 or P2 if the default P3. or change to P3 or P2 if it is P1)

I dont know why it happen.

Thank you very much

Dear Jeff

Do you need any other information?

Dear Jeff 

What do you mean about "recommend setting the value very early after your"?

We config it with audio mixer path nodes

What does your recommend the sequence about the amixer commands?

Thank you

Hi Daniel,

I am not super familiar with the driver and amixer commands. Is there a line of code that you use to configure the powertune mode? This line should be one of the first things you do before configuring the rest of the device (setting gain values, etc.)

Best regards,
Jeff McPherson

Dear Jeff

Do you mean that i should config the powertune mode before  rest of the device?

i config device as following

Do you mean that i need to config powertune mode first?

Which mode should i use?

Thank you very much

        <ctl name="LO DAC Playback Switch" value="1" />
        <ctl name="LOL Output Mixer L_DAC Switch" value="1" />
        <ctl name="LOR Output Mixer R_DAC Switch" value="1" />
        <ctl name="PCM Playback Volume" value="110" /> 

Hi Daniel,

yes I mean try to config power tune mode first. You should use mode 3/4. I'm not sure if the driver supports this directly but you could do it with a direct i2c write.

Best regards,
Jeff McPherson