TDA8944AJ Datasheet PDF - Philips

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 8Ωload 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.

●Features

●■Gain/volume adjustment via a DC control pin

●■Soft clipping

●■Operating at a low supply voltage

●■Standby and mute mode

●■No on/off switching plops

●■Low standby current

●■High supply voltage ripple rejection

●■Outputs short-circuit protected to ground, supply and across the load

●■Thermally protected

●■Printed-circuit board compatible with TDA8946AJ and TDA8580J.

●Applications

●■Mains fed applications (e.g. TV sound)

●■PC audio

●■Portable audio.