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Class D Audio Amplifier IC Forum Discussions

jacksl528
Level 3
10 replies posted 5 questions asked 5 replies posted
Level 3

配置I2S信号输入为“out, L/R, 16 bits lsbj”和“out, L/R, 18 bits lsbj”

扬声器充满噪音

ma12070p 不支持这种格式吗?

我用它默认的power输入格式(如下图)

如何在没有单片机的情况下正确配置格式?谢谢

1.gif

1 Solution
PMM_JIM
Employee
First solution authored First like received First reply posted
Employee

MA12070P默认I2S格式是left justified 32bit, 可以通过I2C配置需要的I2S格式。如果设计没问题功率太大过温保护,那么需要考虑加强散热

PMM_JIM_0-1645414217236.png

 

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3 Replies
PMM_JIM
Employee
First solution authored First like received First reply posted
Employee

输入I2S跟MA12070P设置的I2S格式要一致。MA12070P默认是 left justified 32bit。 可以通过I2C配置需要的I2S格式。格式不对不能正常工作.

jacksl528
Level 3
10 replies posted 5 questions asked 5 replies posted
Level 3

got it,

The chip can only support 32-bit left aligned format, right?

Another question:

 

I use cs8412s to output 24 bit IIS to 12070p

 

I have configured I2S mode. If the sound is louder, there will be intermittent pause and overheating protection,

 

Thank you for your help!

PMM_JIM
Employee
First solution authored First like received First reply posted
Employee

MA12070P默认I2S格式是left justified 32bit, 可以通过I2C配置需要的I2S格式。如果设计没问题功率太大过温保护,那么需要考虑加强散热

PMM_JIM_0-1645414217236.png