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PDF 7429 Data sheet ( Hoja de datos )
| Número de pieza | 7429 | |
| Descripción | 3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 7429 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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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
1 page  
TDA7429L
Table 4. Electrical Characteristics
(refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ,Vin = 1Vrms; RG = 600Ω, all controls flat
(G = 0dB), L+R CTRL = +4dB, MODE = OFF; f = 1KHz unless otherwise specified).
Symbol
Parameter
Test Conditio n
Min. Typ. Max. Unit
CONTROL L+R
CRANGE Control Range
- 11 +4 dB
SSTEP Step Resolution
0.5 1 1.5 dB
SPEAKER & AUX ATTENUATORS
CRANGE Control Range
79 dB
SSTEP Step Resolution
-0.5 1 1.5 dB
EA Attenuation set error
Av = 0 to -20dB
-1.5 0 1.5 dB
Av = -20 to -79dB
-3 0 2 dB
VDC DC Steps
adjacent att. steps
-3 0 3 mV
AMUTE Output Mute Condition
+70 100
dB
RVEA Input Impedance
21 30 39 KΩ
AUDIO OUTPUTS
NO(OFF) Output Noise (OFF)
Output Mute, Flat
BW = 20Hz to 20KHz
4 µVrms
5 µVrms
d Distorsion
Av = 0 ; Vin = 1Vrms
0.01 0.1
%
SC Channel Separation
70 90
dB
VOCL Clipping Level
d = 0.3%
2 2.5
Vrms
ROUT Output Resistance
20 40 70 Ω
VOUT DC Voltage Level
3.8 V
MONITOR OUTPUTS
d Distorsion
Av = 0 ; Vin = 1Vrms
0.01 0.1
%
SC Channel Separation
70 90
dB
VOCL Clipping Level
d = 0.3%
2 2.5
Vrms
ROUT Output Resistance
20 50 70 Ω
VOUT DC Voltage Level
4.5 V
BUS INPUTS
VIL Input Low Voltage
1V
VIH Input High Voltage
3V
IIN Input Current
-5 +5 mA
VO Output Voltage SDA
Acknowledge
IO = 1.6mA
0.4 V
5/16
5 Page 
Table 10. Middle & Treble Selection
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
0000
0001
0010
0011
0100
0101
0110
0111
1111
1110
1101
1100
1011
1010
1001
1000
0000
0001
0010
0011
0100
0101
0110
0111
1111
1110
1101
1100
1011
1010
1001
1000
TDA7429L
MIDDLE
2 dB STEPS
-14
-12
-10
-8
-6
-4
-2
0
0
2
4
6
8
10
12
14
TREBLE
2 dB STEPS
-14
-12
-10
-8
-6
-4
-2
0
0
2
4
6
8
10
12
14
11/16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet 7429.PDF ] | |
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