TI中文支持网Other Parts Discussed in Thread:TAS5755M
你好，我用TAS5755M做PBTL，配置文件写入后，只有CD通道有PWM波形，AB通道没有输出，接的喇叭有声音，但是有呜呜的杂音，同时喇叭很烫。配置文件如下，是配置哪里有问题？谢谢！
! I2C Configuration file for TAS570x
X1B 00X05 00X06 00X0A 3A
X09 26X08 26X07 30
X14 54X13 ACX12 54X11 ACX0E 91X20 00 01 77 72X10 02X0B 00X10 02X1C 02X19 30X25 01 02 13 45
! Biquads
X50 00 00 00 00
X29 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X30 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2A 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2B 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2C 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2D 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2E 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X2F 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X58 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X59 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X31 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X32 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X33 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X34 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X35 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X36 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X5C 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X5D 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00X5A 00 00 05 83 00 00 0B 06 00 00 05 83 00 FB 42 C1 0F 84 A7 33X5B 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
! DRCs
X3A 00 00 44 32 00 7F BB CDX3B 00 02 A3 99 00 7D 5C 65X3C 00 00 22 19 00 7F DD E1X40 FD 2D 26 01X41 0F 82 8F 5DX42 00 08 42 10X46 00 00 00 03X39 00 00 00 00 00 00 00 00X3D 00 7F FF B3 00 00 00 08X3E 00 7F FF B3 00 00 00 08X3F 00 7F FF B3 00 00 00 08X43 FD 6C ED F2X44 0F 83 33 35X45 00 08 42 10X46 00 00 00 03X52 00 80 00 00 00 00 00 00 00 00 00 00X60 00 00 00 00 00 80 00 00X53 00 80 00 00 00 00 00 00 00 00 00 00 00 80 00 00X54 00 80 00 00 00 00 00 00 00 00 00 00 00 80 00 00X56 00 80 00 00X57 00 02 00 00X51 00 80 00 00 00 00 00 00 00 00 00 00X55 00 80 00 00 00 00 00 00 00 00 00 00
X52 00 80 00 00 00 00 00 00 00 00 00 00
Amy Luo：
您好，
请查看数据手册9.3.3 Single-Filter PBTL Mode，必须遵循以下列出的PBTL模式配置之一：
Register (0x25) be written with a value of 0x0110 3245, Register (0x19) be written with a value of 0x35
Register (0x25) be written with a value of 0x0101 2345, Register (0x19) be written with a value of 0x3A
,
Kailyn Chen：
您好，需要和您确认几点：
1. MCLK，LRCLK， BCLK是否正确。
2. PBTL是否3.3V高电平?
3. 也是最重要的一点，上电时序AVDD，PDN，RST是否都没问题。
另外，也建议您参考下这个帖子，关于PBTL的配置，可以对照一下：
e2e.ti.com/…/2833.tas57112731-configuration-on-pbtl-mode
