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Class D Audio Amplifier IC Forum Discussions

Ivan_Lee
Level 5
Level 5
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currently we have a MA12070P - board that can work with 44.1kHz@16bits sample rate,

but can't work with 48khz@24bits. ( no voice output)

 

So we have some questions :

1. Does MA12070  support 48khz - 24bits - audio sample rate ?

2. Do i need to set i2c registers for different sample rate?

3. Can you give us i2c setting for 48khz - 24bits ?

4. Is there have any hw setting  for diffetent sample rate?

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1 Solution
PranavaYN
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi,

This CLK should come from Audio Source as shown in following figure

PranavaYN_0-1670406838350.png

The value of this clock can be anything mentioned in the Table 8-11.

Best regards,
Pranava

View solution in original post

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3 Replies
PranavaYN
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi Ivan,

1. MA12070P does support 48khz 24bits.

2. Yes, you would need to set I2C register not for different sample rate but for bit width.

3. Please change the value of 0x35 and 0x36 registers to match the audio imput format on your side.

PranavaYN_0-1670405568666.png

4. There is no hardware setting for different sample rate. please refer to Table 8-11 in the datasheet and provide appropriate CLK frequency.

PranavaYN_1-1670405675241.png

 

Best regards,
Pranava
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Ivan_Lee
Level 5
Level 5
5 likes given 100 sign-ins First like received

Hi, Pranava,

48khz and 44.1khz has different CLK frequency, how to chagne CLK frequency ?

Ivan_Lee_0-1670406315996.png

 

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PranavaYN
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 50 likes received

Hi,

This CLK should come from Audio Source as shown in following figure

PranavaYN_0-1670406838350.png

The value of this clock can be anything mentioned in the Table 8-11.

Best regards,
Pranava
0 Likes