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TDA7294 93 power amplifier board

Overview

TDA7293/94 power amplifier board

It has been verified, please feel free to use it! ! !

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main feature:

Wide power supply voltage range: ±12V ~±35V

High output power: 100W

Standby and silent functions

Noiseless ON/OFF switch

Low noise and low distortion

Short circuit protection and overheating protection

Both TDA7293 and TDA7294 can use this power amplifier board

The bass is thick, the midrange is layered, and the treble is crisp

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suggestion:

Use a speaker of around 60W

Use 4 ohm speakers when the power supply is below 18V

Use 6 ohm speakers when powered by 18V~26V

Use 8 ohm speakers when powering 26V~35V

Transformer above 100W

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Precautions:

Be sure to use dual power supplies, otherwise the chip will be damaged!

Do not overload, short circuit, or exceed rated voltage!

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Learn more and join QQ group: 614105710

Bilibili video link: https://www.bilibili.com/video/BV1SZ4y1q7Jq?spm_id_from=333.999.0.0&vd_source=5d1fd844c4d595a6e76369095db91f33

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-19 20:17:51

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