aerobotics

2X100W speaker amplifier TDA8920BJ

Overview

USB mode: The TYPE-C interface can be connected to a computer or an OTG cable to a mobile phone.

Audio input mode: Directly access audio signals and can be connected to musical instruments or other signal sources.

Suitable for 2 ohm, 4 ohm, 6 ohm and 8 ohm impedance speakers (change the values of L6, L7 and C57, C58)

The GND network is grounded (connected to the earth) otherwise there will be interference.

Note: The power display voltage in the test video is incorrect. The actual power supply voltage is plus or minus 24V. MP3 mode and loudspeaker mode are temporarily unavailable. Waiting for subsequent versions.

Relational tables

Impedance value	L6,L7	C57,C58
2 euros	10UH	1UF
4 euros	22UH	680nF
6 euros	33UH	470nF
8 euros	47UH	330nF

Design Files

VID_20220815_19111.mp4

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Update:2025-08-08 02:06:11

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