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PDF TDA7309 Data sheet ( Hoja de datos )
| Número de pieza | TDA7309 | |
| Descripción | DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7309 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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TDA7309
DIGITAL CONTROLLED STEREO AUDIO PROCESSOR
WITH LOUDNESS
INPUT MULTIPLEXER:
3 STEREO INPUTS
RECORD OUTPUT FUNCTION
LOUDNESS FUNCTION
VOLUME CONTROL IN 1dB STEPS
INDEPENDENT LEFT AND RIGHT VOLUME
CONTROL
SOFT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I2C BUS
DESCRIPTION
The TDA7309 is a control processor with inde-
pendent left and right volume control for quality
audio applications. Selectable external loudness
and soft mute functions are provided.
Control is accomplished by serial I2C bus micro-
processor interface.
The AC signal setting is obtained by resistor net-
BLOCK DIAGRAM
DIP20
SO20
ORDERING NUMBER:
TDA7309
TDA7309D
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and Low DC stepping
are obtained.
3x
2.2µF
LEFT
INPUTS
17
18
20
3x
2.2µF
RIGHT
INPUTS
14
13
11
Recout(L)
1
LOUD(L)
19
100nF
INPUT
SELECTOR
VOLUME +
LOUDNESS
MUTE
2
OUT
LEFT
SERIAL BUS DECODER + LATCHES
VOLUME +
LOUDNESS
SOFT
MUTE
6
DIGGND
4
SDA
5
SCL
8
ADDR
3 CSM
BUS
September 1997
SUPPLY
TDA7309
16 7
VS AGND
15
CREF
10
Recout(R)
22µF
12
LOUD(R)
100nF
MUTE
9 OUT
RIGHT
D93AU045A
1/12
1 page  
Figure 7: Quiescent current vs. supply voltage.
TDA7309
Figure 8: Loudnessvs. Volume Attenuation.
Figure 9: Loudnes vs. Frequency
(CLOUD = 100nF) vs. Volume
Figure 10: Loudness vs. External Capacitors
5/12
5 Page 
DIP20 PACKAGE MECHANICAL DATA
DIM.
a1
B
b
b1
MIN.
0.254
1.39
mm
TYP.
0.45
0.25
D
E 8.5
e 2.54
e3 22.86
F
I
L 3.3
Z
MAX.
1.65
25.4
7.1
3.93
1.34
MIN.
0.010
0.055
TDA7309
inch
TYP.
0.018
0.010
0.335
0.100
0.900
0.130
MAX.
0.065
1.000
0.280
0.155
0.053
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TDA7309.PDF ] | |
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