XPT2069 is one class AB dual channel, 2.6 W, take headphones drive, 64 grade digital pulse volume control of stereo bridge audio power amplifier.

In the 5 v power supply conditions, THD in less than 10% of the premise, to 4 Ω external load provide 2.6 W output power, in the output signal distortion is less than 1% of the premise to the four Ω BTL load provide 1.8 W output power.

XPT2069 volume 64 level control. In addition, when earphone plug access jack, audio power amplifier and the single terminal work mode driver stereo headphones.

XPT2069 gather outside the control of the low power shut off mode, stereo headset amplification model, internal thermal turn off protection and short circuit protection mechanism, and using the characteristics of the circuit reduce power on and off electric appear noise (crack)

The main function characteristics of the chip
PO is 10% THD + N, VDD = 5 v
Low current (9 ma)
Wide working voltage range 2.0 V to 5.5 V
Power on and off electrical noise suppression
A level 64 digital pulse volume adjustment
5 v working voltage, THD is less than 10%, 4 Ω load, BTL mode, each channel output power is 2.6 W
5 v working voltage, THD is less than 1%, 4 Ω load, BTL mode, each channel output power is 1.8 W
Two work modes: BTL mode, SE model
Power down mode leakage current is small, less than 1 µ A
Short circuit protection circuit, maximum output amplitude strangulation function, thermal turn off protection and over current protection circuit
The SOP - 16 / ESOP16 / DIP16 packaging

Chip applications
Multimedia monitor
Portable computer and desktop computer
Portable TV