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TS4999
Filter-free stereo 2.8 W class D audio power amplifier with selectable 3D sound effects
Features
■ Operates from VCC = 2.4 to 5.5 V ■ Dedicated standby mode active low/channel ■ Output power per channel: 2.8 W at 5 V into
4 Ω with 10% THD+N or 0.7 W at 3.6 V into 8 Ω with 1% THD+N max. ■ Selectable 3D sound effect ■ Four gain setting steps: 3.5, 6, 9.5 and 12 dB ■ Low current consumption ■ PSSR: 63 dB typical at 217 Hz. ■ Fast start up phase: 7.8 ms ■ Short-circuit and thermal shutdown protection ■ Flip chip 18-bump lead-free package
Applications
■ Cellular phones ■ PDAs ■ Notebook PCs
Description
The TS4999 is a stereo fully-differential class D power amplifier. It can drive up to 1.35 W into a 8 Ω load at 5 V per channel. The device has four different gain settings utilizing two discrete pins, G0 and G1.
Pop and click reduction circuitry provides low on/off switch noise while allowing the device to start within 8 ms. 3D enhancement effects are sel.