Integrated amplifier TDA7576B

* This project is used to verify the solution verification board design of the audio power amplifier [TDA7576B] (https://item.szlcsc.com/188210.html) (mall number C176819) of Lichuang Mall
* This project is the open source hardware of Lichuang EDA Platform Solution Verification Module Solicitation Project

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* This design is an audio power amplifier module based on TDA7576B
* TDA7576B is a dual-bridge MOSFET integrated amplifier specially designed by STMicroelectronics for trucks with a 24V battery power supply. It has high integration. High power and few external components required. It is a very convenient audio power amplifier chip
* Although it is specially designed for large cars, it is also very convenient for home use. Just ensure that the power supply voltage is about 24V and the maximum does not exceed 32V
* It can drive two-channel 20W4Ω speakers
* The input signal range is 0~5V, logic control high level 5V
* This design refers to the recommended circuit design in the chip manual, and uses convenient wiring terminals to facilitate DIY. For more detailed chip parameters, please refer to the chip manual in the attachment.
* The heat sink can be C4697 from the mall. Since there is no package, it is not drawn, but there is space reserved on the PCB for installation

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Pin terminal switch:

* CD : Clipping detector is normally high level, and changes to low level when overheating protection, output short circuit or output clipping occurs, and the indicator light is red.
* OD: Offset detector is normally high level, and changes when the input is mistakenly connected to DC. is low level, the indicator light is yellow.
* The input interface uses a 3.5mm headphone jack, two-channel input
* The output interface uses screw terminals for convenient wiring, or the wires can be soldered directly to the PCB
* The self-locking switch is a standby switch With mute switch
* potentiometer for volume adjustment. If the volume is too low, it may be because the input signal is too weak. You may consider using an op amp to build an amplifier between the input signal and the integrated power amplifier
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