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ST Microelectronics - LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

Numéro de référence TDA7463D
Description LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR
Fabricant ST Microelectronics 
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TDA7463D fiche technique
® TDA7463D
LOW VOLTAGE TONE CONTROL
DIGITALLY CONTROLLED AUDIO PROCESSOR
1 STEREO INPUT
1 STEREO OUTPUT
TREBLE BOOST
BASS CONTROL
BASS AUTOMATIC LEVEL CONTROL
VOLUME CONTROL IN 1dB STEPS
MUTE
STAND-BY FUNCTION SOFTWARE CON-
TROLLED
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
DESCRIPTION
The TDA7463 is a volume tone (bass and treble)
processor for quality audio applications in Low
voltage supply portable systems.
Bass ALC (Automatic Level Control) function can
be adjusted by a dedicated pin. The control of all
the functions is accomplished by serial bus.
SO16
ORDERING NUMBER: TDA7463D
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained.
BLOCK DIAGRAM
C12 3.3nF
R5
5.6K
100nF
100nF
TREBLE-R
C11 C10
BASSI-R
BASSO-R
C1 0.47µF
IN-R
-63dB
CONTROL
TREBLE
50K
RB
BASS
0/-10dB
x1
x5
OUT-R
C2 0.47µF
ALC
R1
1M
BASS_ALC
CONTROL
HALF_WAVE
RECTIFIER
+
I2C BUS DECODER + LATCHES
VS VS
R3 R4
SCL 1K1K
SDA
I2C
1
2
3
4
VS
DGND
SCL
SDA
C3 0.47µF
IN-L
50K
D96AU482B
TREBLE
-63dB
CONTROL
BASS
0/-10dB
x5
x1
OUT-L
RB
TREBLE-L BASSI-L
VREF
SUPPLY
VS
VS
C8 C9
BASSO-L GND
CREF
100nF 100µF
C4
3.3nF
C5
100nF
C6
R2 100nF
5.6K
C7
22µF
May 2002
1/12

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