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Class D Audio Amplifier IC Forum Discussions

eugeneong
Level 1
First reply posted First question asked Welcome!
Level 1

I would like to check whether MA12070P  of the frequency response which is flat till -3dB@40KHz as the datasheet only has till 20KHz spec.

Please let me know your feedback.

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1 Solution
PranavaYN
Moderator
Moderator 50 likes received First comment on KBA First question asked
Moderator

Hi,

Apologies for the delay. 

By using a I2S frame clock of 96kHz, the frequency response for the MA12070P can extend to 40kHz. Please see the frequency response graph. The out-of-band noise of the device should be taken into consideration though, as it rises above 20kHz. Please see the noise response.

Gain graph:

PranavaYN_0-1646920016379.png

Noise response graph:

PranavaYN_1-1646920033288.png

Best regards,
Pranava

View solution in original post

2 Replies
eugeneong
Level 1
First reply posted First question asked Welcome!
Level 1

Hi, any update??

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PranavaYN
Moderator
Moderator 50 likes received First comment on KBA First question asked
Moderator

Hi,

Apologies for the delay. 

By using a I2S frame clock of 96kHz, the frequency response for the MA12070P can extend to 40kHz. Please see the frequency response graph. The out-of-band noise of the device should be taken into consideration though, as it rises above 20kHz. Please see the noise response.

Gain graph:

PranavaYN_0-1646920016379.png

Noise response graph:

PranavaYN_1-1646920033288.png

Best regards,
Pranava