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PDF PT2335 Data sheet ( Hoja de datos )
| Número de pieza | PT2335 | |
| Descripción | 2W X 2 Stereo Integrated Audio Amplifier | |
| Fabricantes | Princeton Technology | |
| Logotipo |  |
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DataSheet.in
Preliminary PT2335
2W X 2 Stereo Integrated Audio Amplifier
DESCRIPTION
The PT2335 is an integrated audio amplifier design for
the low voltage (5V) application purpose, built-in
stereo 2W Class-D power amplifier with audio
processor, it provides 4 stereo sources selector, and
all signal process is based on pure analog processing
to maintain high performances and low power
consumption. The audio processor includes all the
advanced control functions such like digital controlled
volume, adaptive loudness, treble and bass control. It
also provides line output for versatile application. The
whole chip functions are controlled via I2C bus.
APPLICATIONS
• Portable player duck speaker system
• Portable media player
• Digital photo frame
• Flat panel display and TV
• Other audio applications
BLOCK DIAGRAM
FEATURES
• Supply voltage: 3 ~ 6V
• 4 Stereo inputs
• Input gain selectable (0dB, 3.75dB, 7.5dB,
11.25dB)
• Independent channel volume controller
• Loudness function
• Bass and treble control.
• 2W X 2 Class-D power amplifier (VDD=5V,
RL=4Ω)
• 2 voltage gain setting for power amp (20dB, 26dB)
• Internal and external oscillator selectable
• Dual switching frequency for avoid AM radio
interference
• Pop-Free circuitry eliminates unpleasant noises
during power ON/OFF.
• Low power shutdown
• High PSRR
• Over heat/over current protection circuitry
• Controlled by I2C interface
• High power CMOS processing
• LQFP 48 pins package
R1
R2
R3
R4
VDD
BYPASS
GND
AVDD
AGND
SD
OE
SDA
SCL
L4
L3
L2
L1
RGOUT
RIN LOUDR
RT
RB2 RB1
INPUT
GA I N
V O LUME TREBLE
BA SS
ROUT
C ontrol
I nterfac e
INT OSC
CLOCK SEL
RC H 2W
CLA SS-D
RINP
RINN
RVDD RO P
RGND RO N
EXT O SC
OSC3
OSC2
OSC1
LCH 2W
CLA SS-D
LGND LO N
LVDD LO P
LINN
LINP
INPUT
GA I N
LGOUT
V O LUME TREBLE
LIN LOUDL
LT
BA SS
LOUT
LB2 LB1
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
1 page  
DataSheet.in
PT2335
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian, Taipei 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
PRE1.0
5
April, 2009
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet PT2335.PDF ] | |
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