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STMicroelectronics Electronic Components Datasheet

7430 Datasheet

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

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TDA7430
® TDA7431
DIGITALLY CONTROLLED AUDIO PROCESSOR WITH
SURROUND SOUND MATRIX AND VOICE CANCELLER
1 STEREO (4 STEREO) INPUT + 1 MIXER IN-
PUT
INPUT ATTENUATION CONTROL IN 0.5dB
STEP
VOICE CANCELLER IS AVAILABLE
TREBLE MIDDLE AND BASS CONTROL
THREE SURROUND MODES ARE AVAIL-
ABLE:
- MUSIC: 4 SELECTABLE RESPONSES
- MOVIE AND SIMULATED:
256 SELECTABLE RESPONSES
2 SPEAKER AND 2 RECORD ATTENU-
ATORS:
- 2 INDEPENDENT SPEAKERS AND 2
INDEPENDENT RECORD CONTROL
IN 1dB STEP FOR BALANCE FACILITY
- AVAILABILITY OF LOUDSPEAKER
EQUALIZATION FIXED BY EXTERNAL
COMPONENTS
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL BUS
DESCRIPTION
The TDA7430/7431 are volume tone (bass middle
and treble) balance (Left/Right) processors with
SDIP42
TQFP44
ORDERING NUMBERS: TDA7430 (TQFP44)
TDA7431 (SDIP42)
voice canceller for quality audio applications in
car radio and Hi-Fi systems.
They reproduce surround sound by using pro-
grammable phase shifters and a signal matrix.
Control of all the functions is accomplished by se-
rial 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.
PIN CONNECTIONS
PS4
PS3
PS2
PS1
LP
LP1
HP1
HP2
VOUTREF
VAR_L
BASSO_L
VAR_R
BASSO_R
BASS_LO
BASS_LI
BASS_RO
BASS_RI
MIDDLE_LO
MIDDLE_LI
MIDDLE_RO
MIDDLE_RI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
September 1999
D95AU219B
42 VS
41 CREF
40 NBRO
39 NBRIN
38 LPVC
37 R_IN
36 MIX
35 L_IN
34 NBLIN
33 NBLO
32 RECOUT_L
31 RECOUT_R
30 L_OUT
29 R_OUT
28 DIG_GND
27 SCL
26 SDA
25 ADDR
24 AGND
23 TREBLE_L
22 TREBLE_R
LP1
HP1
HP2.
REAROUT
REARIN
VAR_L
BASSO_L
VAR_R
BASSO_R
BASS_LO
BASS_LI
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
R_IN1
MIX
L_IN1
L_IN2
L_IN3
L_IN4
RECOUT_L
RECOUT_R
L_OUT
R_OUT
DIG_GND
D95AU220B
1/21


STMicroelectronics Electronic Components Datasheet

7430 Datasheet

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

No Preview Available !

TDA7430 - TDA7431
BLOCK DIAGRAM (TDA7430)
2/21


Part Number 7430
Description DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER
Maker STMicroelectronics
Total Page 21 Pages
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