DESCRIPTION
The PT2337 is an integrated audio amplifier design for the low voltage (5V) application purpose, built-in
stereo 2W Class-D power amplifier with audio processor, it provides 4 stereo sources selector, and all signal process is based on pure analog processing to maintain high performances and low power consumption.

FEATURES
• Supply voltage: 3 ~ 6V
• 2W X 2 Class-D power amplifier (VDD=5V, RL=4Ω)
• 4 Stereo inputs
• 32 steps, independent channel volume controller
• Bass and treble control.
• 2 voltage gain setting for power amp, (20dB, 26dB)
• Pop-Free circuitry eliminates unpleasant noises during power ON/OFF.
• Low power shutdown
•High PSRR
• High RF radiation immunity.
• Over heat/over current protection
• Controlled by I2C interface
•Pin-compatible with PT2334 (Partly functions compatible)
• LQFP 48 pins package

APPLICATIONS
• Portable player duck speaker system
• Portable media player
• Digital photo frame
• Flat panel display and TV
• Other audio applications