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FS9721-LP3 датащи(PDF) 11 Page - List of Unclassifed Manufacturers

номер детали FS9721-LP3
подробное описание детали  FS9721-LP3
PDF  21 Pages
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производитель  ETC1 [List of Unclassifed Manufacturers]
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FS9721-LP3 датащи(HTML) 11 Page - List of Unclassifed Manufacturers

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Semiconductor Corporation
Fo r tun e
富晶半 導體股 份有限 公司
富晶半导体股份有限公司
TEL : +886-2-2809-4742
- 10 -
TD-0404023
Ver. 1.6
http://www.fsc.com.tw
FAX: +886-2-2809-4874
FS9721_LP3
4,000 格 数字多用电表专用集成电路
十三、应用说明
13.1 通用电路总图
A.100脚封装IC
LCD
BP1
BEEPER
R1
100k
VDD
R10
500k
R8
40k
VR1
10k
R6
20k
R7
10k
R9
90k
VR2
2k
R13
28.5k
R12
22k
R11
100k
R14
22k
D1
1N914
D2
1N914
R15
100k
V/Ohm/Diode/Cap
R19
900k
J3
DCmV
J4
DCV
R26
10M
J5
Ohm
J6
Hz
J8
Hz
R29
1M
S5
HZ/DUTY
S6
HOLD/BLCTR
S7
REL
S8
RANGE
S9
SELECT
S1
BT1
3V
R2
1M
XTAL
4MHz
R3
R4
100k
ADP
BLOUT
ADP2
PTC
1k
C9
27nF
C12
27nF
Ohm
Cap
Diode
C14
47nF
C6
10nF
S2
R27
100k
R30
1k
D3
VDD
D4
R5
220
S4
S3
S10
S11
S12
S13
S15
S16
C16
0.1¦ÌF
C7
27nF
S14
RS232
¦ÌA/mA
COM
10A
J2
AMP
R16
9.99
R17
990
R28
0.01
J7
¦ÌA
J1
mA
F1
10A/250V
F2
0.5A/250V
D5
D6
4.5V
J9
Q1
9013
Q2
9013
Cap
Diode
ACV
C10
0.47¦ÌF
C8
0.47¦ÌF
C11
4.7¦ÌF
C2
10¦ÌF
+
C1
10¦ÌF
+
C3
10¦ÌF
C4
10¦ÌF
C5
10¦ÌF
C15
10¦ÌF
D7
1N4148
VDD
SELECT
31
RANGE
32
REL
33
HOLD
34
HZ/DUTY
35
CAP
36
MEA4
37
MEA3
38
MEA2
39
MEA1
40
LCDC1
41
LCDC2
42
TSTA
43
VSS
44
N.C.
45
AGND
46
N.C.
47
VDD
48
N.C.
49
N.C.
50
COM2
81
COM3
82
COM4
83
ENTX
84
BEEPER
85
BLOUT
86
RST
87
N.C.
88
REFI
89
REFO
90
FTA
91
N.C.
92
FTB
93
FTC
94
TSTC
95
OP1N
96
N.C.
97
OP1O
98
N.C.
99
OP2P
100
FS9721-LP3
IC
Hz
Ohm
Cap
Diode
图 3
100 PIN 通用电路总图
B.78脚裸片IC
LCD
BP1
BEEPER
R1
100k
VDD
R10
500k
R8
40k
VR1
10k
R6
20k
R7
10k
R9
90k
VR2
2k
R13
28.5k
R12
22k
R14
22k
D1
1N914
D2
1N914
R15
100k
V/Ohm/Diode/Cap
R19
900k
J3
DCmV
J4
DCV/ACV
J5
Ohm
J6
Hz
J8
Hz
R29
1M
S5
HZ/DUTY
S6
HOLD/BLCTR
S7
REL
S8
RANGE
S9
SELECT
S1
BT1
3V
R2
1M
XTAL
4M Hz
R4
100k
ADP
PTC
1k
C9
27nF
C12
27nF
Ohm
Cap
Diode
C6
10nF
S2
RESET
R27
100k
C14
47nF
D3
R30
1k
VDD
D4
S3
S4
S10
S11
S12
S13
S15
S16
C7
27nF
S14
RS232
¦ÌA/mA
COM
10A
J2
AMP
R16
9.99
R17
990
R28
0.01
J7
¦ÌA
J1
mA
F1
10A/250V
F2
0.5A/250V
D5
D6
4.5V
J9
Q1
9013
Q2
9013
Cap
Diode
C10
0.47¦ÌF
C8
0.47¦ÌF
+
C1
10¦ÌF
+
C3
10¦ÌF
C2
10¦ÌF
C4
10¦ÌF
C5
10¦ÌF
C11
4.7¦ÌF
ADP2
BLOUT
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
C15
10¦ÌF
C16
0.1¦ÌF
D7
1N4148
VDD
SELECT
23
RANGE
24
REL
25
HZ/DUTY
27
CAP
28
MEA4
29
MEA3
30
MEA2
31
MEA1
32
LCDC1
33
LCDC2
34
TSTA
35
VSS
36
AGND
37
VDD
38
HOLD
26
VB
39
COM1
62
COM2
63
COM3
64
COM4
65
ENTX
66
BEEPER
67
BLOUT
68
RST
69
REFI
70
REFO
71
FTA
72
FTB
73
FTC
74
TSTC
75
OP1N
76
OP1O
77
OP2P
78
FS9721-LP3
IC
Cap
Diode
Hz
Ohm
图4
78 PIN 通用电路总图
注: 1、电流测量处于A模式(见“13.13 电流测量”);
2、OP1O与VDD之间接一只二极管,是为了防止在交流mV电压测量时若输入较高的直流电压造成“死机”
现象。



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