Class AB Audio Amp. THD+N

[mark_nctu]

Dear All:

I design a Class AB Audio Amplifier. It has poor THD+N(-50dB,RL=8Ohm)

when Pout=1mW. How to improve THD+N when low output signal ?

Thanks!

 

[kwkam]

It is like a question "How can I get rich". You haven't show what knid of design you are. For no information, no one can answer your question.

 

[hubert008]

give me the structure of your circuit

 

[songjunjian]

you can increase the openloop gain of the amp , and the device you selected may also affect the thd.