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TC7135CPI Просмотр технического описания (PDF) - TelCom Semiconductor Inc => Microchip
Номер в каталоге
Компоненты Описание
производитель
TC7135CPI
4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
TelCom Semiconductor Inc => Microchip
TC7135CPI Datasheet PDF : 13 Pages
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4-1/2 DIGIT
ANALOG-TO-DIGITAL CONVERTER
TYPICAL APPLICATIONS
(Cont.)
4-1/2 Digit ADC With Multiplexed Common Cathode LED Display
+5V
+5V
SET VREF = 1V
6.8V
–5V
1
V–
28
UR
TC04
100
k
Ω
1.22V
ANALOG
GND
2
REF IN
3
ANALOG
GND
27
OR
26
STROBE
150
Ω
47
k
Ω
0.47 µF
1 µF
4 INT
OUT
5
AZ IN
25
RUN/HOLD
24
DGND
6 BUFF
OUT
23
POLARITY
100 k
Ω
7 CR+EF
22
CLK IN
100
k
Ω
1 µF
8 CR– EF
21
BUSY
+
9
–INPUT
20
(LSD) D1
SIG
0.1
IN
–
µF
10
+INPUT
D2
19
+5V
11
V+
TC7135
D3 18
12
D5 (MSD)
D4
17
10
9
150
Ω
11
8
12
7
13
CD4513
6
BE
14
5
15
4
16
3
17
2
18
1
13
B1 (LSB)
14
B2
(MSB) B8
16
B4
15
1
TC7135
2
3
+5V
4
ADDRESS BUS
CONTROL
DATA BUS
fO = 120 kHz
4-Channel Data Acquisition System
+ 5V
PA0
PA1
PA2
6522
PA3
-VIA-
PA4
PA5
PA6
PA7
CA1
CA2
1Y
1B
2Y
2B
3Y
3B
SEL
157
1A
2A
3A
PB0 PB1 PB2
PB5
PB4
PB3
fIN
GAIN SELECTION
V+ REF CAP
BUF
POL
AZ
OR
INT
UR
D5
B8
TC7135
B4
+ INPUT
B2
B1
D1
VR
D2
D3
–INPUT
D4 ANALOG
STB COMMON
R/H
fIN
DGND
– 5V
GAIN: 10, 20, 50, 100
+15V –15V
11
8
3
10
LH0084
9
14
REF
VOLTAGE
16
15
DG529
CHANNEL 1
DA
DB
WR
A1 A0
EN
CHANNEL 2
CHANNEL 3
CHANNEL 4
DIFFERENTIAL
MULTIPLEXER
CHANNEL SELECTION
TELCOM SEMICONDUCTOR, INC.
5
6
7
8
3-125
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