Hello，
Customer used TAS5711 for his application, stereo output, 8ohm@20W speaker， and the actual output power is limited about 6W/channel.
When it is mass of production, there is some strange sound at power up, like beep~~ the beeping~ always has the same pattern as a short-circuit hiccup on the power-on/off switch
SSTIMER appears period waveform, and he has changed the new IC but the phenomenon is still exist.
The configuration is as following:
0x1B(Oscillator trim register) 0X00 //Select factory trim
0X06(Soft Mute Register) 0X07 //所有通道静音
0x10(Modulation Limit Register) 0x07 //设置最大输出占空比93.8%
0x05(System Control Register 2) 0x00 //AD mode 2.0 mode A_SEL configured as input
0x07(Volume Registers) 0x25 //设置音量
0x06(Soft Mute Register) 0x00 // 所有通道退出静音
And I have suggested to disable SSTIMER, but it didn't solve the problem.
The main power supply is 18V.
3.3V power supply:
SSTIMER:
Could you please help to analyze?
Best regards
Kailyn
