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Электронный компонент: 7431

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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
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.
September 1999
PIN CONNECTIONS
ORDERING NUMBERS: TDA7430 (TQFP44)
TDA7431 (SDIP42)
SDIP42
TQFP44
1
3
2
4
5
6
7
8
9
R_OUT
L_OUT
RECOUT_R
NBLO
RECOUT_L
NBLIN
L_IN
MIX
R_IN
37
36
35
34
33
31
32
30
29
D95AU219B
10
11
12
13
14
42
41
40
39
38
LPVC
NBRIN
NBRO
CREF
V
S
15
16
TREBLE_R
TREBLE_L
AGND
SDA
ADDR
SCL
DIG_GND
28
27
26
24
25
23
22
17
18
19
20
21
LP1
HP1
HP2
VOUTREF
VAR_L
VAR_R
BASSO_L
BASSO_R
BASS_LO
PS4
PS3
PS2
PS1
LP
BASS_LI
BASS_RO
BASS_RI
MIDDLE_LI
MIDDLE_LO
MIDDLE_RO
MIDDLE_RI
1
2
3
5
6
4
7
8
9
10
17
11
18 19
20
21 22
44
43
42
41
39
40
38 37
36
35 34
28
27
26
24
23
25
33
32
31
29
30
VAR_L
REARIN
REAROUT
HP1
LP1
HP2.
BASS_LI
BASS_LO
BASSO_R
BASSO_L
VAR_R
BASS_RO
BASS_RI
MIDDLE_LO
MIDDLE_LI
MIDDLE_RI
MIDDLE_RO
TREBLE_R
TREBLE_L
AGND
SDA
SCL
LP
PS1
PS2
PS3
V
S
PS4
CREF
R_IN4
R_IN3
R_IN2
LPVC
L_IN4
RECOUT_L
RECOUT_R
R_OUT
DIG_GND
L_OUT
R_IN1
MIX
L_IN1
L_IN3
L_IN2
D95AU220B
12
13
14
15 16
1/21
L-IN1
RLP1
L-R
0.47
F
SUPPLY
V
S
AGND
CREF
TREBLE
18nF
MIDDLE
2.7K
MIDDLE-LI
MIDDLE-LO
22nF
RM
BASS
BASS-LI
MUTE
D95AU221B
MUTE
I2
C
BUS
DECODER
+
LATCHES
SPKR
ATT
REC
ATT
TREBLE
MIDDLE
BASS
18nF
22nF
2.7K
5.6nF
MUTE
SPKR
ATT
MUTE
REC
ATT
SCL
SDA
DIG
GND
R-OUT
RECOUT-R
L-OUT
RECOUT-L
22
F
+
-
+
-
+
RHP1
LP1
HP1
HP2
5.6nF
680nF
-
+
R6
R5
R-IN4
0.47
F
50K
PS1
90Hz
100nF
PS1
RPS1
SIM
MOVIE/
MUSIC
MUSIC
OFF
PS2
4KHz
PS3
400Hz
PS4
400Hz
4.7nF
PS2
RPS2
22nF
PS3
RPS3
22nF
PS4
RPS4
MOVIE/SIM
MIXING
AMP
LPF
9KHz
EFFECT
CONTROL
MIXING
AMP
1.2nF
LP
MIDDLE-RI
MIDDLE-RO
31
1
2
3
43
42
41
40
37
39
20
38
44
15
14
11
25
17
16
13
27
22
21
23
24
26
+
-
+
LPF
100K
1
F
100nF
LPVC
MIX
TREBLE-R
79dB
CONTROL
5.6nF
TREBLE-L
100nF
5.6K
100nF
BASS-LO
100nF
100nF
5.6K
BASS-RI
BASS-RO
79dB
CONTROL
79dB
CONTROL
2.2
F
BASSO-R
VAR-R
30K
+
-
+
-
2.2
F
BASSO-L
VAR-L
30K
79dB
CONTROL
10
7
6
8
9
12
18
32
34
19
50K
0.47
F
50K
0.47
F
50K
0.47
F
50K
0.47
F
50K
0.47
F
50K
0.47
F
50K
31.5dB
control
R-IN3
R-IN2
R-IN1
31.5dB
control
L-IN2
L-IN3
L-IN4
2.2
F
50K
REARIN
REAROUT
30
29
28
33
35
36
45
MIX-IN
VOICE
ON
Vref
OFF
SURR
OFF
SURR
RM
RB
SURR
REAR
FIX
3BAND
SURR
REAR
FIX
3BAND
FIX
VAR
RB
FIX
VAR
THE
SWITCHES
POSITION
MATCHES
THE
RESET
CONDITION
BLOCK DIAGRAM (TDA7430)
TDA7430 - TDA7431
2/21
L-in
RLP1
L-R
0.47
F
SUPPLY
V
S
AGND
CREF
TREBLE
18nF
MIDDLE
2.7K
MIDDLE-LI
MIDDLE-LO
22nF
RM
BASS
BASS-LI
MUTE
D95AU222C
MUTE
I2
C
BUS
DECODER
+
LATCHES
SPKR
ATT
REC
ATT
TREBLE
MIDDLE
BASS
18nF
22nF
2.7K
5.6nF
MUTE
SPKR
ATT
MUTE
REC
ATT
SCL
SDA
DIG
GND
R-OUT
RECOUT-R
L-OUT
RECOUT-L
22
F
50K
+
-
+
-
+
RHP1
LP1
HP1
HP2
5.6nF
680nF
-
+
R6
R5
R-in
0.47
F
50K
PS1
90Hz
100nF
PS1
RPS1
SIM
MOVIE/
MUSIC
MUSIC
OFF
PS2
4KHz
PS3
400Hz
PS4
400Hz
4.7nF
PS2
RPS2
22nF
PS3
RPS3
22nF
PS4
RPS4
MOVIE/SIM
MIXING
AMP
LPF
9KHz
EFFECT
CONTROL
MIXING
AMP
1.2nF
LP
MIDDLE-RI
MIDDLE-RO
35
67
8
4
3
2
1
37
42
24
41
5
19
18
15
30
21
20
17
32
27
26
28
29
31
+
-
+
LPF
100K
1
F
100nF
LPVC
MIX
VOUTREF
TREBLE-R
79dB
CONTROL
5.6nF
TREBLE-L
100nF
5.6K
100nF
BASS-LO
100nF
100nF
5.6K
BASS-RI
BASS-RO
79dB
CONTROL
79dB
CONTROL
2.2
F
BASSO-R
VAR-R
NB-RA
NB-RB
NB4
NBRIN
NBRO
NB3
30K
+
-
+
-
2.2
F
BASSO-L
VAR-L
NB-LA
NB-LB
NB1
NBLIN
NBLO
NB2
30K
25
ADDR
79dB
CONTROL
14
11
10
34
33
40
39
12
13
16
22
9
36
38
23
31.5dB
control
31.5dB
control
MIX-IN
VOICE
ON
THE
SWITCHES
POSITION
MATCHES
THE
RESET
CONDITION
Vref
OFF
SURR
RB
RM
RB
REAR
SURR
3BAND
FIX
3BAND
FIX
REAR
SURR
SURR
OFF
FIX
VAR
FIX
VAR
BLOCK DIAGRAM (TDA7431)
TDA7430 - TDA7431
3/21
THERMAL DATA
Symbol
Description
Value
Unit
R
th j-pins
Thermal Resistance Junction-pins
Ma x.
85
C/W
QUICK REFERENCE DATA
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
S
Supply Voltage
7
9
10.2
V
V
CL
Max. input signal handling
2
Vrms
THD
Total Harmonic Distortion V = 1Vrms f = 1KHz
0.01
0.1
%
S/N
Signal to Noise Ratio V
out
= 1Vrms (mode = OFF)
106
dB
S
C
Channel Separation f = 1KHz
90
dB
Treble Control
(2db step)
-14
+14
dB
Middle Control (2db step)
-14
+14
dB
Bass Control (2dB step)
-14
+14
dB
Balance Control
1dB step (L
CH,
R
CH
)
-79
0
dB
Mute Attenuation
100
dB
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Operating Supply Voltage
11
V
T
amb
Operating Ambient Temperature
-10 to 85
C
T
stg
Storage Temperature Range
-55 to +150
C
TDA7430 - TDA7431
4/21
PS4
22nF
PS3
22nF
PS2
4.7nF
PS1
100nF
LP
1.2nF
LP1
5.6nF
HP1
680nF
VAR-L
2.2
F
HP2
BASSO-L
VAR-R
BASSO-R
RECOUT-L
RECOUT-R
L-OUT
R-OUT
V
S
CREF
100nF
10
F
22
F
220nF
R-IN4
0.47
F
R-IN3
0.47
F
R-IN2
0.47
F
DIG-GND
SCL
SDA
AGND
18nF
2.7K
MIDDLE-LO
MIDDLE-LI
22nF
18nF
2.7K
MIDDLE-RO
MIDDLE-RI
22nF
100nF
5.6K
BASS-LO
BASS-LI
100nF
100nF
5.6K
BASS-RO
BASS-RI
100nF
TREBLE-L
5.6nF
D95AU225B
2.2
F
TREBLE-R
5.6nF
LPVC
100nF
TDA7430
39
40
9
41
42
43
44
1
18
19
34
14
15
16
17
38
10
11
12
13
27
26
25
24
23
22
21
20
8
7
6
3
2
37
36
35
REARIN
2.2
F
REAROUT
4
5
R-IN1
0.47
F
33
L-IN1
0.47
F
31
L-IN2
0.47
F
30
L-IN3
0.47
F
29
L-IN4
0.47
F
28
MIX
1
F
32
TEST CIRCUIT (TDA7430)
PS4
22nF
PS3
22nF
PS2
4.7nF
PS1
100nF
LP
1.2nF
LP1
5.6nF
HP1
680nF
VAR-L
2.2
F
HP2
BASSO-L
VAR-R
BASSO-R
VOUTREF
RECOUT-L
RECOUT-R
L-OUT
R-OUT
V
S
CREF
100nF
10
F
22
F
15K
220nF
220nF
7.5K
NBRO
NBRIN
R-IN
0.47
F
MIX
1
F
L-IN
0.47
F
15K
220nF
7.5K
NBLIN
NBLO
220nF
DIG-GND
SCL
SDA
ADDR
AGND
18nF
2.7K
MIDDLE-LO
MIDDLE-LI
22nF
18nF
2.7K
MIDDLE-RO
MIDDLE-RI
22nF
100nF
5.6K
BASS-LO
BASS-LI
100nF
100nF
5.6K
BASS-RO
BASS-RI
100nF
TREBLE-L
5.6nF
D95AU224B
2.2
F
TREBLE-R
5.6nF
LPVC
100nF
TDA7431
42
1
13
9
2
3
4
5
6
22
23
38
18
19
20
21
41
40
39
34
33
14
15
16
17
32
31
30
29
28
27
26
25
24
12
11
10
8
7
37
36
35
TEST CIRCUIT (TDA7431)
TDA7430 - TDA7431
5/21