TDA7439(2008) 查看數據表（PDF） - STMicroelectronics
零件编号
产品描述 (功能)
比赛名单
TDA7439 Datasheet PDF : 23 Pages
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TDA7439
1
Block diagram and pin out
Block diagram and pin out
Figure 1. Block diagram
11
L-IN1
12
L-IN2
13
L-IN3
14
L-IN4
100K
100K
100K
100K
10
R-IN1
9
R-IN2
8
R-IN3
7
R-IN4
100K
100K
100K
100K
MUXOUTL INL
15
16
TREBLE(L) MIN(L) MOUT(L) BIN(L) BOUT(L)
27
26
25 23
24
RM
RB
G
VOLUME
TREBLE
MIDDLE
BASS
SPKR ATT
LEFT
6
LOUT
0/30dB
2dB STEP
I2CBUS DECODER + LATCHES
30
SCL
1
SDA
29
DIG_GND
G
VOLUME
TREBLE
MIDDLE
BASS
SPKR ATT
RIGHT
VREF
INPUT MULTIPLEXER
+ GAIN
17
18
MUXOUTR INR
SUPPLY
RM
RB
28
19
20 21
22
2
TREBLE(R) MIN(R) MOUT(R) BIN(R) BOUT(R) CREF
5
ROUT
3
4 VS
AGND
D95AU342B
Figure 2. Pin connections
SDA
CREF
VS
AGND
ROUT
LOUT
R-IN4
R-IN3
R-IN2
R-IN1
L-IN1
L-IN2
L-IN3
L-IN4
MUXOUTL
1
30
2
29
3
28
4
27
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13
18
14
17
15
16
D95AU340A
SCL
DIG_GND
TREBLE(R)
TREBLE(L)
MIN(L)
MOUT(L)
BOUT(L)
BIN(L)
BOUT(R)
BIN(R)
MOUT(R)
MIN(R)
INR
MUXOUTR
INL
3/23
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