Hi Experts,
customer complain audio drop of TAS2552 at 3W/4R output, and I found TAS2552 EVM can repeat audio drop issue when playing music at at below condition:
VBAT=4V , IOVDD=DVDD=1.8V, speaker=4ohm. signal input from AP I2S, initialization reg as below:
w 80 01 12
w 80 08 10
w 80 03 5D
w 80 04 00
w 80 05 13
w 80 06 00
w 80 07 C8
w 80 09 00
w 80 0A 00
w 80 0B 8F
w 80 0C 58
w 80 12 17
w 80 14 0F
w 80 0D D8
w 80 0E 00
w 80 02 EC
w 80 21 02
w 80 21 01
w 80 21 04
w 80 21 07
r 80 32 01 #Read and save the value of register 0x32
w 80 32 ED #0bYYXXXXXX 这里 YY 改为11, XXXXXX remain the values in the other bits read in the step above.
w 80 21 07
w 80 01 14
w 80 01 10
when input signal is 0dB sine wave, the output will click, but won't trigger audio drop.
when input signal change to Hotel California.wav, it will trigger audio drop, the register 0x00 read out 0x02. even lower down the input signal to -3dB(on the AP）, it still can trigger audio drop.
please help to analyze this issue.
