BA7757 查看數據表（PDF） - ROHM Semiconductor
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BA7757 Datasheet PDF : 5 Pages
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Video ICs
•Application example
BA7757BK
AUDIO
HEAD
INPUT
SW
CTRL
TP
LINE MIC
IN
IN
1k
1k
TP
0.47µ 0.47µ 220p
24
23
22
21
20
19
18
17
AC BIAS
OSC
25
+
26
27
33µ
28
INPUT SW
120kΩ
PB
BIAS
16
15
EP / SP
CTRL
14
13
EE / REC
CTRL
VCC
+
29
Vreg
30
31
32
REC
12
– 24.4dB
R
39.2dB
11
EE / PB
CTRL
10
P
LINE
BF
9
VCC
LINE
OUT
1
+
33µ
BIAS
ALC
2
3
NP N.C.
22µ
4
5
6
7
8
1M +
22k
47µ
10k
•External dimensions (Units: mm)
9.0 ± 0.3
7.0 ± 0.2
24 17
25
16
32
9
1
8
0.15 ± 0.1
0.8 0.4 ± 0.1
0.15
QFP32
FADE OUT
/ FADE IN
CTRL
Fig. 2
MUTE
CTRL
Units
R: Ω
C: F
5
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