DESCRIPTION

The PT2002 is a Class-D power amplifier designed for audio equipments, maximum output power can reach up to 2.2W x 3CH (VDD = 5V, RL = 4?, THD = 10). The PT2002 composed of exclusively designed Class-D circuitry (patented) by PTC, along with the most advanced semi-conductor technology. Compare with traditional Class-AB amplifiers, the PT2002 performs much better power efficiency (>80), less heat dissipation, and produces superior audio quality. External circuitry is very simple and flexible, and consists of flawless self-protection capabilities. The chip’s packaging is small, thus it occupies an insignificant amount of space on the circuit board; therefore, making it the predominant choice when it comes to audio amplifiers.

FEATURES

? CMOS technology

? 3 channels, differential analog input

? Maximum output power 2.2W(4?) x 3CH @ THD=10

? No external LC low-pass filter required

? 20dB fixed voltage gain

? Contains shutdown function

? POP noise free during shutdown and power ON/OFF period

? User adjustable power-on delay timing

? Built-in short circuit protection

? Built-in overheat protection

? Low distortion (0.3)

? High efficiency (>85, 8? load), low heat dissipation

? SSOP 24 pins, 173 mil body width miniature packages

APPLICATIONS

? Small multimedia speakers

? Laptop

? LCD monitor

? Portable DVD player

? Portable Media player

? Other audio applications