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TDA7435 Datasheet

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH LOUDSPEAKERS EQUALIZER

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TDA7435
DIGITALLY CONTROLLED AUDIO PROCESSOR
WITH LOUDSPEAKERS EQUALIZER
INPUT
- FOUR HIGH PASS CHANNELS
- TWO AUX STEREO CHANNELS
VOLUME CONTROL IN 1dB STEPS WITH
GAIN UP TO 15dB
SOFT MUTE AND DIRECT MUTE
FOUR AUXILIARY CHANNELS:
- TWO SPEAKERS CONTROL IN 1dB STEP
- TWO CHANNELS MULTIPLEXED WITH
THE HIGH PASS CHANNELS
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I2 CBUS
DESCRIPTION
The audioprocessor TDA7435 is an upgrade of
the TDA731X audioprocessor family.
Due to a highly linear signal processing, using
CMOS-switching techniques instead of standard
bipolar multipliers, very low distortion and very
low noise are obtained.
SO28
ORDERING NUMBER: TDA7435D
A second programmable high pass filtering pro-
vides the loudspeakers equalization.
The soft Mute function is implemented andcan be
activated in two ways:
1 Via serial bus (Mute byte, bit D0)
2 Directly on pin 3 through an I/O line of the mi-
crocontroller
Very low DC stepping is obtained by use of a
BICMOS technology.
BLOCK DIAGRAM
HP FL 1
HP FL 2
HP FR 1
HP FR 2
HP RL 1
HP RL 2
HP RR 1
HP RR 2
AUX 2 IN L
AUX 2 IN R
22
21
20
19
18
17
16
15
6
7
HP FILTER
HP FILTER
HP FILTER
HP FILTER
AUX 1 IN L
AUX 1 IN R
1
2
GAIN
0-15dB/1dB step
CSM
3
SOFT
MUTE
SDA SCL DGND AGND CREF VCC
27 26 25 24 23 28
I2C BUS
SUPPLY
12
OUT REF
MUX
ATTENUATOR
0/-79dB
ATTENUATOR
0/-79dB
10
HP FL OUT
11
HP FR OUT
13
HP RL OUT
14
HP RR OUT
9
AUX 2 OUT L
8
AUX 2 OUT R
5
AUX 1 OUT L
4
AUX 1 OUT R
November 1996
D96AU437A
1/10


STMicroelectronics Electronic Components Datasheet

TDA7435 Datasheet

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH LOUDSPEAKERS EQUALIZER

No Preview Available !

TDA7435
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
Tamb
Tstg
Parameter
Operating Supply Voltage
Operating Ambient Temperature
Storage Temperature Range
PIN CONNECTION
Value
10.5
-40 to 85
-55 to 150
Unit
V
°C
°C
AUX 1 IN L
AUX 1 IN R
CSM
AUX 1 OUT R
AUX 1 OUT L
AUX 2 IN L
AUX 2 IN R
AUX 2 OUT R
AUX 2 OUT L
HP FL OUT
HP FR OUT
OUT REF
HP RL OUT
HP RR OUT
1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
9 20
10 19
11 18
12 17
13 16
14 15
D96AU438
VCC
SDA
SCL
DGND
AGND
CREF
HP FL 1
HP FL 2
HP FR 1
HP FR 2
HP RL 1
HP RL 2
HP RR 1
HP RR 2
THERMAL DATA
Symbol
Rth j-amb
Parameter
Thermal Resistance Junction-pins
QUICK REFERENCE DATA
Symbol
VS
VCL
THD
S/N
SC
Parameter
Supply Voltage
Max. input signal handling
Total Harmonic Distortion V = 1Vrms f = 1KHz
Signal to Noise Ratio
Channel Separation f = 1KHz
Input Gain AUX1 1dB step
Value
65
Unit
°C/W
Min.
6
2.1
0
Typ.
9
2.6
0.01
106
80
Max.
10.2
0.08
15
Unit
V
Vrms
%
dB
dB
dB
2/10


Part Number TDA7435
Description DIGITALLY CONTROLLED AUDIO PROCESSOR WITH LOUDSPEAKERS EQUALIZER
Maker ST Microelectronics
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TDA7435 Datasheet PDF






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