TS4982 Datasheet, PDF (1/2 Pages) STMicroelectronics – Highly-integrated complete 2 W stereo audio subsystem

Boosting audio quality with 3D effects
on multimedia PC notebooks
TS4982
Highly-integrated complete 2 W stereo audio subsystem
The TS4982 integrates all analog and mixed-signal audio
functions needed in high-end PC notebooks or portable
audio multimedia applications.
The TS4982 uses an enhanced referenced-ground stereo
headset drive with independent shutdown control and
dedicated audio inputs for both outputs.
In addition, a built-in internal 4-step gain control for the
loudspeaker amplifier and a fixed 3.5 dB gain for the
headphone amplifier minimize external component needs.
The TS4982’s small 5x5 QFN package provides optimal
space saving on your PCB.
The TS4982 is intended for use with the Microsoft Windows Vista operating system. It is designed with an advanced
BICMOS process. The TS4982’s 3D-effect enhancement is programmed through a dual digital-input interface that
provides greater flexibility on each audio output channel.
Key features
„„ High-quality 2 W stereo output power into 4 Ω load per
channel
„„ Ground-referenced 100 mW stereo headphone drive
„„ PC-beep input system detection
„„ Four selectable gain settings
„„ Enhanced pop-and-click reduction circuitry
Key benefits
„„ Selectable level of impressive 3D audio effects on
loudspeakers
„„ High audio quality class AB 2x 2 W stereo speaker
amplifier
„„ No bulky output capacitors required thanks to
referenced-to-ground headset drive
„„ Complete audio subsystem for notebooks
Target applications
„„ PC notebooks
„„ Tablet PCs
„„ Multimedia portable audio players
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