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STMicroelectronics Electronic Components Datasheet

TDA7429L Datasheet

3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL

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TDA7429L
3 BAND EQUALIZER AUDIO PROCESSOR
WITH SUBWOOFER CONTROL
s 3 STEREO INPUTS
s AUXILIARY MONO INPUT
s INPUT ATTENUATION CONTROL IN 0.5dB
STEP
s TREBLE MIDDLE AND BASS CONTROL
s FOUR SPEAKERS ATTENUATORS:
- 4 INDEPENDENT SPEAKERS CONTROL IN
1dB STEPS FOR BALANCE FACILITY
- INDEPENDENT MUTE FUNCTION
s SUBWOOFER OUTPUT (L+R) CONTROLLED
IN 1dB STEP INPUTS
s ALL FUNCTIONS PROGRAMMABLE VIA
SERIAL BUS
DESCRIPTION
The TDA7429L is volume tone (bass middle and tre-
ble) balance (Left/Right) processors for quality audio
applications in TV and Hi-Fi systems, providing also
Figure 1. Test Circuit
SDIP42
ORDERING NUMBER: TDA7429L
an additional subwoofer control.
The AC signal setting is obtained by resistor networks
and switches combined with operational amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are ob-
tained.
2.2µF
2.2µF
0.47µF
BASSO_R VAR_R BASSO_L VAR_L MONO INPUT
14
L+R OUTPUT 9
13
12 11
10
0.47µF
R_IN3
40
0.47µF
R_IN2
39
38
R_IN1
0.47µF
N.C.
N.C.
N.C.
N.C.
N.C.
1
2
3
4
7
LP
100nF
LP1
100nF
TREBLE_R
5.6nF
TREBLE_L
100nF
MONITOR_R
22nF
MIDDLE_LO
18nF
2.7K
MIDDLE_LI
22nF
MIDDLE_RO
18nF
2.7K
MIDDLE_RI
5
6
23
24
37
19
20
21
22
32
31 30 29 28 27
AUXOUT_L AUXOUT_R L_OUT R_OUT DIG_GND SCL
26
SDA
25
AGND
36 MONITOR_L
L_IN1
35
0.47µF
L_IN2
34
0.47µF
L_IN3
33
0.47µF
VS
42
10µF
100nF
CREF
41
22µF
8
HP2
220nF
100nF
15
BASS_LO
100nF
16
BASS_LI
5.6K
100nF
BASS_RO
17
100nF
18
BASS_RI
5.6K
D99AU1029
March 2000
1/16


STMicroelectronics Electronic Components Datasheet

TDA7429L Datasheet

3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL

No Preview Available !

TDA7429L
Figure 2. Pin Connection
N.C.
N.C.
N.C.
N.C.
LP
LP1
N.C.
HP2
L+R OUTPUT
MONO INPUT
VAR_L
BASSO_L
VAR_R
BASSO_R
BASS_LO
BASS_LI
BASS_RO
BASS_RI
MIDDLE_LO
MIDDLE_LI
MIDDLE_RO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
D99AU1028
42 VS
41 CREF
40 R_IN3
39 R_IN2
38 R_IN1
37 MONITOR_R
36 MONITOR_L
35 L_IN1
34 L_IN2
33 L_IN3
32 AUXOUT_L
31 AUXOUT_R
30 L_OUT
29 R_OUT
28 DIG_GND
27 SCL
26 SDA
25 AGND
24 TREBLE_L
23 TREBLE_R
22 MIDDLE_RI
Table 1. Quick Reference Data
Symbol
Parameter
VS Supply Voltage
VCL Max. input signal handling
THD Total Harmonic Distortion V = 1Vrms f = 1KHz
S/N Signal to Noise Ratio V out = 1Vrms (mode = OFF)
SC Channel Separation f = 1KHz
Treble Control (2db step)
Middle Control (2db step)
Bass Control (2dB step)
Balance Control 1dB step (LCH, RCH)
Mute Attenuation
2/16
Min.
7
2
-14
-14
-14
-79
Typ.
9
0.01
106
90
100
Max.
10.2
0.1
+14
+14
+14
0
Unit
V
Vrms
%
dB
dB
dB
dB
dB
dB
dB


Part Number TDA7429L
Description 3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL
Maker ST Microelectronics
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TDA7429L Datasheet PDF





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