Anybody share me the background noise suppresion?

[John_li]

Hi all,
I have designed a cordless telephone,but the background noise is uncomfortable,i want to improve it.Anybody kindly share me your experiment and documents about how to suppress it?
Thank you.

 

[John_li]

Any share me the background noise suppresion?

Is it related to the PCB design?

 

[John_li]

Any share me the background noise suppresion?

Anybody?

 

[vijaya_narayana]

Re: Any share me the background noise suppresion?

if it si from external source then u can use a pass filter to eliminate.U can use some decouplers where ever necessary.

 

[John_li]

It is difficult that mixed with audio,for it is white noise .so i want to find the root source.what is the root cause?

 

[John_li]

Anybody kindly tell me how to reduce the background noise in FM system?