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Description
Car Subwoofer Audio Power Amplifier Board Reactive Amplifier Chip
Product Description
Revised version: There is BA3121 noise reduction circuit, using LC filter circuit design, two imported 8200uf (ruby or black diamond capacitor) filter capacitor wave or two 3300uf ruby capacitor, common mode inductance LC filter design, more effective filtering of power supply Interference. All signal coupling capacitors use imported non-polarity fever capacitors.
Notice
This board does not have a power amplifier chip, and other parts have been assembled. You can use it with TDA7850, 7388, 7854, etc. (25-pin chips can be used directly, and a 27-pin chip cannot be used. ) Two versions of the chip are common, but the two filter capacitors are different. The height of the 8200uf version is about 45mm, and the 3300uf version is about 23mm. Please leave a message on which one you want. If there is no message, the 8200uf version will be sent by default.
Specification
item
value
Working voltage
DC 10V-15V
Channel
4 channels
Board size
100mm X 50mm
Installation Instructions
If you need to use a 27-pin A chip, you need to change it slightly. Method: Cut off pins 1 and 27 of the chip with TAB on pin 27, then plug in pin 2 corresponding to pin 1 of the board and install it
