hello everyone, i'm new here, i was trying to google for reference and i found this site.
I was looking for a op amp design such that two op amp gain can be control by a single potentiometer, however the op amp must be able to receive and amplify their own signal independently.
I'm looking for this design because i wish to control the gain of my stereo speaker, now im stuck because i dont wish to use two potentiometer to control two separate op amp,because this leads to unbalance volume between left and right speaker. I know there are sophisticated IC such as TDA8424 that capable of doing this, but i just wish to implement a very simple volume control using potentiometer instead of a audio IC+microcontroller to achieve this goal.
Had anyone came across such design before? would you share the design?
thanks in advance for all your help.
James
I was looking for a op amp design such that two op amp gain can be control by a single potentiometer, however the op amp must be able to receive and amplify their own signal independently.
I'm looking for this design because i wish to control the gain of my stereo speaker, now im stuck because i dont wish to use two potentiometer to control two separate op amp,because this leads to unbalance volume between left and right speaker. I know there are sophisticated IC such as TDA8424 that capable of doing this, but i just wish to implement a very simple volume control using potentiometer instead of a audio IC+microcontroller to achieve this goal.
Had anyone came across such design before? would you share the design?
thanks in advance for all your help.
James