TDA7463AD Datasheet, PDF (1/11 Pages) STMicroelectronics – LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7463AD
LOW VOLTAGE TONE CONTROL
DIGITALLY CONTROLLED AUDIO PROCESSOR
1 FEATURES
■ 2 STEREO INPUT
■ 1 STEREO OUTPUT
■ TREBLE BOOST
■ BASS CONTROL
■ BASS AUTOMATIC LEVEL CONTROL
■ VOLUME CONTROL IN 1dB STEPS
■ MUTE
■ STAND-BY FUNCTION SOFTWARE
CONTROLLED
■ ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
2 DESCRIPTION
The TDA7463AD is a volume tone (bass and tre-
ble) processor for quality audio applications in Low
voltage supply portable systems.
Bass ALC (Automatic Level Control) function can
be adjusted by a dedicated pin.
Figure 1. Package
SSO20P
Table 1. Order Codes
Part Number
TDA7463AD
Package
SSO20P
The control of all the functions is accomplished by
serial bus.
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.
Figure 2. Block Diagram
C1 0.47µF
IN2-R
C2 0.47µF
IN1-R
C14 3.3nF
R5
5.6K
100nF
100nF
TREBLE-R
C13 C12
BASSI-R
BASSO-R
17
16
15
18
RB
INPUT
-63dB
50K
SELECT CONTROL
19
TREBLE
BASS
0/-10dB
x1
x5
50K
C3 0.47µF
ALC 20
R1
1M
BASS_ALC
CONTROL
HALF_WAVE
+
RECTIFIER
I2C BUS DECODER + LATCHES
14 OUT-R
VS
VS
I2C
1
R3
R4
10 SCL
1KΩ
1KΩ
2
3
4
9 SDA
V_S
DGND
SCL
SDA
C4 0.47µF
2
IN1-L
50K
C5 0.47µF
3
IN2-L
50K
D99AU1049
TREBLE
-63dB
CONTROL
BASS
x5
x1
0/-10dB
OUT-L
7
RB
V_REF
SUPPLY
VS
1
4
5
6
11
12
TREBLE-L BASSI-L
BASSO-L GND
CREF
C6
3.3nF
C7
100nF
C8
100nF
R2
5.6K
C9
22µF
C10
100nF
VS
C11
100µF
June 2004
REV. 3
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