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PT2334

Princeton Technology
Part Number PT2334
Manufacturer Princeton Technology
Description Stereo 2W Class-D Amplifier
Published May 25, 2014
Detailed Description PT2334 Stereo 2W Class-D Amplifier with Built-In Audio Processor DESCRIPTION The PT2334 is an integrated stereo 2W Clas...
Datasheet PDF File PT2334 PDF File

PT2334
PT2334


Overview
PT2334 Stereo 2W Class-D Amplifier with Built-In Audio Processor DESCRIPTION The PT2334 is an integrated stereo 2W Class-D amplifier accompany with a Class-AB headphone driver.
The input interface accepts both analog and digital audio sources; the chip included a 16-bit DAC to convert digital audio source to analog signal.
The signal process is basically in analog domain to maintain the high performances and low power consumption.
The PT2334 also provide very useful multi-sources selection (Up to 4 sources) and tone control functions, thanks for the advanced CMOS technology now we could combine both audio processing and amplification into a single chip.
The whole chip functions are controlled via I2C bus.
FEATURES • Supply Voltage: 3.
7~6V • Differential input power amplifier for improved CMRR.
• 2W X 2 Class-D power amplifier (VDD=5V, RL=4Ω) • 70mW X 2 Class-AB headphone driver (RL=32Ω) • BASS and TREBLE control • 32 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 noises during power ON/OFF.
• Low power shutdown • Over Heat/Over current protection circuitry • Controlled by I2C interface • High Power CMOS processing • Available in 48 Pins, LQFP APPLICATIONS • • • • • Flat panel display and TV Portable media player Portable player ducking system Digital photo frame Other audio applications BLOCK DIAGRAM DACRO R1 R2 R3 R4 RT RB2 RB1 ROUT HVDD RHPO RINP RINN SDI LRCI BCKI SDI LRCI BCKI TREBLE RCH BASS RCH HPR R1 R2 R3 16-Bit DAC Vref R-VOL R4 RCH 2 W Bypass VDDA GNDA SD OE SDA SCL RVDD RGND ROP RON SPR CLASS-D BYPASS AVDD AGND SD OE SDA SCL HPEN Pow er Management Vref LCH 2W Vref LGND LVDD LON LOP SPL CLASS-D L-VOL HPL Control Interface L1 L2 HPEN L3 DACLO L1 L2 L3 L4 TREBLE LCH BASS LCH L4 LT LB2 LB1 LOUT HGND LHPO LINP LINN Tel: 886-66296288‧Fax: 886-29174598‧ http://www.
princeton.
com...


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