Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
3CH, 2.2W, Class-D Audio Power Amplifier
PT2002
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 = 4Ω, 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
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CMOS technology
3 channels, differential analog input
Maximum output power 2.2W(4Ω) 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%, 8Ω load), low heat dissipation
SSOP 24 pins, 173 mil body width miniature packages
APPLICATIONS
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Small multimedia speakers
Laptop
LCD monitor
Portable DVD player
Portable Media player
Other audio applications
PT2002 V1.0
-1-
May, 2008
PTC [ PRINCETON TECHNOLOGY CORP ]
