TPA3223EVM: 12引脚 HEAD

EVM中提到：

The TPA3223EVM supports both AD modulation as well as HEAD modulation. In AD mode, each of the two half-bridge outputs are continuously switching. AD mode is the default mode for the TPA3223EVM. The EVM also supports HEAD mode modulation. HEAD mode also switches both half bridge outputs but also optimizes the switching for lower power loss at idle as well as increased EMI performance at cost of some performance. The device accomplishes this by reducing its duty cycle at idle and while playing small signals. At higher output levels HEAD mode will also reduce the switching on one of the half bridges. The modulation mode can be controlled through jumper J6 on the EVM as follows:

12引脚为HEAD;但是在规格书中，12引脚为GND

请问HEAD是否确认有此功能？

Amy Luo：

您好，

很抱歉TPA3223 datasheet 与TPA3223EVM pin12 定义不一致给您造成疑惑，我去确认下这个问题

,

Amy Luo：

您好，

已确认此问题，我们需要按照 TPA3223 datasheet 的定义，它没有HEAD 模式。其EVM似乎是参考的TPA3221的EVM设计，但没有修改12脚的定义。TPA3221支持HEAD 模式。