Tel:886-2-66296288
Fax:886-2-29174598
URL:http://www.princeton.com.tw
2.2W×2 Class-D Audio Power Amplifier
Preliminary
PT2332
DESCRIPTION
The PT2332 is a CLASS-D power amplifier designed for audio equipments, maximum output power
can reach up to 2.2W x 2 (VDD = 5V, RL = 4Ω, THD = 10%). The PT2332 composed of exclusively
designed CLASS-D circuitry (patented) by PTC, along with the most advanced semi-conductor
technology. When compared to the traditional CLASS-AB amplifiers, the PT2332’s has a much higher
efficiency (> 80%), low heat dissipation, and produces superior audio quality. PT2332’s external
circuitry is simple and easily accessible, 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
Stereo differential analogue input
Maximum output power 2.2W(4Ω) × 2 @ THD=10%
Output low-pass LC filter is not necessary
Preset 2 voltage gain selection (20dB and 26dB)
Contains shutdown function
POP noise free in shutdown changed and power ON/OFF period
Built-in short circuit protection
Built-in overheat protection
Low harmonic distortion (0.1%), superior sound quality
High efficiency (8Ω load > 85%), low heat dissipation
SOP-16 pins and SSOP-16 pins, miniature packages
APPLICATIONS
•
•
•
•
•
•
•
Portable Media Player
Portable DVD Player
LCD Monitor
Small multimedia speakers
Hand-free phone
Laptop
Other audio applications
PT2332 PRE1.0
-1-
September, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
