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TDA7297 Bluetooth power amplifier

Overview

The TDA7297 integrated power amplifier block purchased from Lichuang Mall is used. The circuit uses two large filters, and 78L05 steps down 5V to power the Bluetooth module. 5v uses clc filtering to make the power supply purer. The signal input does not add an equalization circuit, so the loss is smaller. Please enjoy the attached video,
2.23.02.08, modify the Bluetooth negative connection and upload the AUX input demonstration video.

Design Files

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Update:2025-07-16 02:55:59

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