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PDF PT2347 Data sheet ( Hoja de datos )
| Número de pieza | PT2347 | |
| Descripción | Stereo Audio Processor | |
| Fabricantes | ANGUS ELECTRONICS | |
| Logotipo |  |
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ANGUS ELECTRONICS CO., LTD
Tel: (852) 2345 0540 Fax: (852) 2345 9948
Web Site: www.angus.com.hk
Preliminary PT2347
Stereo Audio Processor
DESCRIPTION
The PT2347 is an audio processor designed for
versatile application, it adopts all of functions from
successful predecessor- the PT2313L, and it includes
3 stereo input selector with adjustable gain, master
volume control with low frequency loudness
compensation, individual output attenuator and tone
control.
In car audio applications, maximum power output of
the audio set is measurement on saturated condition, it
may not achieve the goal if power amplifier does not
have enough gain, therefore, the PT2347 provides
extra +10dB voltage gain in final output stage, it is
easy to drive the power amplifier into saturated power
and eliminates external gain OPAMP.
APPLICATIONS
• Car audio
• Home audio system
• Powered speaker system
FEATURES
• Controlled by I²C interface
• Direct replace the PT2313L with +10dB output
gain
• 3 stereo inputs with gain selection, range from 0dB
to +11.25dB in 3.75dB/step
• Master volume from 0dB to -78.75dB in
1.25dB/step
• Speaker attenuator for balance and fader, range
from 0dB to -38.75dB in 1.25dB/step
• Each output can be muted individually.
• Low frequency loudness compensation
• Bass and Treble control, range from -14dB to
+14dB in 2dB/step
• Wide operation range (VDD = 4V to 10V)
• Low harmonic distortion Low noise
BLOCK DIAGRAM
Speaker Attenuator
With Mute
LROUT
RROUT
+10dB GAIN
LFOUT
REF
REF +10dB GAIN
RFOUT
TREB_L
BIN_L
BOUT_L
LOUD_L
TREBLE
BASS
LOUDNESS
REF REF
Master
Volume
Loud
REF
SW
REF
TREBLE
BASS
LOUDNESS
TREB_R
BIN_R
BOUT_R
LOUD_R
LIN
LOUT
LIN1
LIN2
LIN3
REF
VDD
REF
AGND
Input SW and
GAIN
REF
Input SW and
GAIN
RIN
ROUT
RIN1
RIN2
RIN3
REF
BIAS
I2C
DECODER
SCL
SDA
DGND
PRE1.0
1
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| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet PT2347.PDF ] | |
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