|
|
PDF TDA7449 Data sheet ( Hoja de datos )
| Número de pieza | TDA7449 | |
| Descripción | TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TDA7449 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
|
No Preview Available !
® TDA7449
TONE CONTROL
DIGITALLY CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
- 2 STEREO INPUTS
- SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
ONE STEREO OUTPUT
TREBLE, AND BASS CONTROL IN 2.0dB
STEPS
VOLUME CONTROL IN 1.0dB STEPS
TWO SPEAKER ATTENUATORS:
- TWO INDEPENDENT SPEAKER CONTROL
IN 1.0dB STEPS FOR BALANCE FACILITY
- INDEPENDENT MUTE FUNCTION
ALL FUNCTION ARE PROGRAMMABLE VIA
SERIAL BUS
DIP20
ORDERING NUMBER: TDA7449
DESCRIPTION
The TDA7449 is a volume tone (bass and treble)
balance (Left/Right) processor for quality audio
applications in TV systems.
Selectable input gain is provided. Control of all
the functions is accomplished by serial bus.
BLOCK DIAGRAM
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.
8
L-IN1
100K
9
L-IN2
100K
MUXOUTL
10
TREBLE(L) BIN(L) BOUT(L)
16 15 14
RB
G
VOLUME
TREBLE
BASS
SPKR ATT
LEFT
5
LOUT
7
R-IN1
100K
6
R-IN2
100K
0/30dB
2dB STEP
I2CBUS DECODER + LATCHES
19
SCL
20
SDA
18
DIG_GND
G
VOLUME
TREBLE
BASS
SPKR ATT
RIGHT
VREF
INPUT MULTIPLEXER
+ GAIN
11
MUXOUTR
SUPPLY
RB
17 12 13 1
TREBLE(R) BIN(R) BOUT(R) CREF
4
ROUT
2
3 VS
AGND
D98AU847A
April 1999
1/17
1 page  
P.C.Board
TDA7449
TEST CIRCUIT
IN1L
J3
RCA
1
2
J4 3
4
5
CON3
GND
IN1L
GND
IN2L
GND
IN1R
J2
RCA
L-IN1 8
C3 0.47µF
L-IN2 9
C4 0.47µF
100K
100K
IN2R
1
GND
2
J1 IN1R
3
GND
4
CON
R-IN2 6
C1 0.47µF
R-IN1 7
C2 0.47µF
100K
100K
MOUTL
1
GND
2
J5 MOUTR
3
GND
4
CON4
J5
MUXOUTL
10
C9
5.6nF
R2 2K
150nF
330nF
TREBLE(L)
16
C7 C8
BIN(L)
15
BOUT(L)
14
RB
5
LOUT
G
VOLUME
TREBLE
BASS
SPKR ATT
LEFT
OUT_R
J8
OUT_L
J9
OUT_L
OUT_ R
1
2
3
4
CON4
J10
0/30dB
2dB STEP
I2CBUS DECODER + LATCHES
18 DIG_GND
19 SCL
20 SDA
+9 V
JP1
JUMPER
1
2
3
4
CON4
J6
G
VOLUME
TREBLE
INPUT MULTIPLEXER
+ GAIN
MUXOUTR
11
TREBLE(R)
17
BASS
SPKR ATT
RIGHT
VREF
SUPPLY
RB
12
BOUT(R)
C5 C6
13
1
CREF
4
ROUT
3 R3 30
2 AGND
VS
C13
100nF
C12
22µF
1
+V8
2
J7
GND
+9V CON2
C10
5.6nF
150nF 330nF
R1 2K
C11
10µF
D98AU849A
5/17
5 Page 
DATA BYTES (continued)
INPUT GAIN SELECTION
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
GAIN = 0 to 30dB
VOLUME SELECTION
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
000
001
010
011
100
101
110
111
0000
0001
0010
0011
0100
0101
X1 1 1XXX
VOLUME = 0 to 47dB/MUTE
TDA7449
INPUT GAIN
2dB STEPS
0dB
2dB
4dB
6dB
8dB
10dB
12dB
14dB
16dB
18dB
20dB
22dB
24dB
26dB
28dB
30dB
VOLUME
1dB STEPS
0dB
-1dB
-2dB
-3dB
-4dB
-5dB
-6dB
-7dB
0dB
-8dB
-16dB
-24dB
-32dB
-40dB
MUTE
11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet TDA7449.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TDA7440 | TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR | ST Microelectronics |
| TDA7440D | TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR | ST Microelectronics |
| TDA7442 | TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR | ST Microelectronics |
| TDA7442D | TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR | ST Microelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |