PT2002 데이터 시트보기 (PDF) - Princeton Technology
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PT2002 Datasheet PDF : 4 Pages
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3CH, 2.2W, Class-D Audio Power Amplifier
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
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
• 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
• Small multimedia speakers
• Laptop
• LCD monitor
• Portable DVD player
• Portable Media player
• Other audio applications
PT2002 V1.0
-1-
May, 2008
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