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TDA8944AJ - 2 x 7 W BTL audio amplifier

General Description

The TDA8944AJ is a dual-channel audio power amplifier with DC gain control.

It has an output power of 2 × 7 W at an 8 Ω load and a 12 V supply.

The circuit contains two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic.

Key Features

  • s Gain/volume adjustment via a DC control pin s Soft clipping s Operating at a low supply voltage s Standby and mute mode s No on/off switching plops s Low standby current s High supply voltage ripple rejection s Outputs short-circuit protected to ground, supply and across the load s Thermally protected s Printed-circuit board compatible with TDA8946AJ and TDA8580J. 3.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TDA8944AJ 2 x 7 W BTL audio amplifier with DC gain control Rev. 01 — 01 March 2002 M3D541 Product data 1. General description The TDA8944AJ is a dual-channel audio power amplifier with DC gain control. It has an output power of 2 × 7 W at an 8 Ω load and a 12 V supply. The circuit contains two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The overall gain can be adjusted from +30 dB down to −50 dB using a DC control voltage. This feature can be used for volume control or a preset gain. The TDA8944AJ comes in a 17-pin DIL-bent-SIL (DBS) power package and is pin compatible with the TDA8944J. 2.