参数资料
型号: TDA7439
厂商: STMICROELECTRONICS
元件分类: 音频控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP30
封装: 0.400 INCH, SDIP-30
文件页数: 17/23页
文件大小: 296K
代理商: TDA7439
TDA7439
Block diagram and pin out
3/23
1
Block diagram and pin out
Figure 1.
Block diagram
Figure 2.
Pin connections
0/30dB
2dB STEP
MUXOUTL
INL
VOLUME
TREBLE
TREBLE(L)
MIDDLE
MUXOUTR
INR
TREBLE(R)
BOUT(L)
SPKR ATT
LEFT
LOUT
SCL
SDA
DIG_GND
ROUT
D95AU342B
I
2CBUS DECODER + LATCHES
100K
G
L-IN1
L-IN2
L-IN3
L-IN4
100K
R-IN1
R-IN2
R-IN3
R-IN4
G
INPUT MULTIPLEXER
+ GAIN
MOUT(L)
BASS
BIN(L)
BASS
SPKR ATT
RIGHT
MIN(R) MOUT(R)
BOUT(R)
BIN(R)
SUPPLY
CREF
AGND
VS
MIN(L)
6
11
12
13
14
10
9
8
7
30
1
29
5
3
4
17
18
28
19
20
21
22
2
15
16
27
26
25
23
24
RM
RB
RM
RB
VREF
LOUT
R-IN4
R-IN3
R-IN2
R-IN1
L-IN2
L-IN1
L-IN3
L-IN4
1
3
2
4
5
6
7
8
9
MUXOUTR
INR
MIN(R)
BIN(R)
MOUT(R)
BOUT(R)
BIN(L)
BOUT(L)
MOUT(L)
25
24
23
22
21
19
20
18
17
D95AU340A
10
11
12
13
14
30
29
28
27
26
DIG_GND
CREF
VS
AGND
ROUT
MIN(L)
TREBLE(L)
TREBLE(R)
SCL
SDA
MUXOUTL
INL
16
15
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