3acydELV

Desktop amplifier (op amp version)

 
Overview

This circuit uses two TEA2025B as the main power amplifier chip, jrc4558 op amp low-pass filtered 2.1 desktop power amplifier.
(Verified)
 
The power supply is DC 12v or AC 9v (about 12v after rectification).
The signal input uses 3.5mm 
. It has been verified that the board can be directly printed
. Some precautions have been marked on the schematic diagram. Note that the reference
 
 
 
chip needs to add a heat sink, especially the bass chip!
 
 
If you have any questions, you can leave a message in the comment area
 
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参考设计图片
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Update:2025-06-24 15:14:52

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