Noise

Bukitoo · 17th March 2004, 12:53 PM

Hi !!!
I just want to know some precautions in a design of an amplifier about noise reduction !
Thanks !

Frank Berry · 17th March 2004, 01:00 PM

Noise within an amplifier can come from many sources.
You can minimize noise by paying close attention to the following:

1. Adequate Power Supply filtering.
2. Proper grounding techniques.
3. Proper signal routing.
4. The use of shielded cables where necessary.
5. Using a well shielded enclosure.

Anything else anyone?

Christer · 17th March 2004, 02:37 PM

If it is a low-level application like a phono amp it is also important
to choose low-noise components at critical places. Low-noise
BJTs/JFETs/op-amps, and low-value resistors etc.

17th March 2004, 12:53 PM	#1
Bukitoo diyAudio Member Join Date: Feb 2004 Location: Buenos Aires	Noise Hi !!! I just want to know some precautions in a design of an amplifier about noise reduction ! Thanks !

17th March 2004, 01:00 PM	#2
Frank Berry diyAudio Member Join Date: Sep 2003 Location: Midland, Michigan	Noise within an amplifier can come from many sources. You can minimize noise by paying close attention to the following: 1. Adequate Power Supply filtering. 2. Proper grounding techniques. 3. Proper signal routing. 4. The use of shielded cables where necessary. 5. Using a well shielded enclosure. Anything else anyone? __________________ Frank

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17th March 2004, 02:37 PM	#3
Christer diyAudio Member Join Date: Sep 2002 Location: Sweden	If it is a low-level application like a phono amp it is also important to choose low-noise components at critical places. Low-noise BJTs/JFETs/op-amps, and low-value resistors etc.

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