XPT4963 is one class AB, dual bridge audio power amplifier chip, use 5.0 V power supply; In THD + N less than 10% cases, for a 4 Ω load provide 3 w power. In addition, when the joint stereo headphones, chip can single terminal work mode driver stereo headphones.

XPT4963 dual channel audio power amplifier is to need to output high quality audio power system design, it USES surface mount technology, only a small amount of peripheral equipment, the feedback resistance external, and make the system have high quality audio output power. XPT4963 with double channel design make the chip with a bridge connecting speaker amplifier and single terminal stereo headset amplification two work mode, simplified the audio system of the peripheral circuit design.

XPT4963 outside the control of the low power shut off mode, stereo headset amplification mode, and internal thermal turn off protection mechanism. And using the characteristics of the circuit reduce noise (tick and crackle) and distortion.

Function main characteristics
1. THD + N for 10% of output power for 3 w
2. Single end mode, load for 32 Ω, output power for 75 mw, THD + N or less 0.5%.
3. Turn off leakage current 0.7 u A (typical)
4. Working voltage of 2.0 V to 5.5 V
5. LM4863 fully compatible with
6. The SOP14 / DIP14 packaging

Basic application
Multimedia monitoring system.
Portable computer and desktop computer.
Portable TV, DVD, etc.