TEA 2025B audio amp

Status
Not open for further replies.
What is the resistor between IN and Gnd? Likely something like 1K?

Make it a pot, with the wiper going to the left end of the input coupling cap connected to pin 10, bottom end grounded. You might want to add a second input coupling cap between IN and the top end of the pot, or not.
 
Last edited:
Here is the original schematic and my schematic that shows a volume control:
 
MikeMl said:
And what is the end-to-end resistance of the pot?
Click to expand...
The datasheet for the TEA2025B amplifier says that the input resistance of the amplifier is typically 30k ohms so a 10k to 20k volume control will work fine.
 
Last edited:
Status
Not open for further replies.

Similar threads

T
Could use checking of my schematic for Teensy Audio Shield pcb
Replies
17
Views
3K
TonyAme
T
T
Need help checking over schematic for Arduino Nano Audio Sequencer PCB
Replies
5
Views
2K
TonyAme
T
G
  • Question
Impedence mismatch problem in audio project
Replies
12
Views
2K
audioguru
A
  • Question
200 amp NC 240 AC Relay
Replies
9
Views
2K
rjenkinsgb
D
  • Question
Bluetooth integrated FM transmitter project
Replies
19
Views
3K
audioguru
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…