代理商供應 PT2833 普誠立體聲D類放大器
DESCRIPTION
The PT2833 is an integrated stereo 15W Class-Damplifier accompany with a Class-AB headphonedriver. The input interface accepts both analog anddigital audio sources; the chip included a 16-bit DAC toconvert digital audio source to analog signal. Thesignal process is basically in analog domain to maintainthe high performances and low power consumption.The PT2833 also provide very useful multi-sourcesselection (Up to 4 sources) and 2-channel audiolimit .We could combine both audio processing andamplification into a single chip. The whole chipfunctions are controlled via I2C bus.
FEATURES
● Supply Voltage: 7~15V
● Differential input power amplifier for improvedCMRR.
● 15W X 2 Class-D power amplifier (VDD=15V,RL=8Ω)
● 150mW X 2 Class-AB headphone driver(RL=16Ω
● BASS and TREBLE control
● 64 steps volume controller
● 4 Inputs selection
● Audio line out (same level with volume and tone)
● Built-In 16 bits DAC for digital audio sources
● Pop-Free circuitry eliminates unpleasant noisesduring power ON/OFF
● Low power shutdown
● Over Heat/Over current protection circuitry
● Controlled by I2C interface
● High Power CMOS processing
● PBTL Mode With 32W At 12V.2Ω
APPLICATIONS
● Flat panel display and TV
● Portable media player
● Portable player docking system
● PC/Video Projector
● Other audio applications
