TC7107 TelCom, TC7107 Datasheet - Page 8

• Manufacturer Part Number: TC7107
• Description: 3-1/2 DIGIT A/D CONVERTERS
• Manufacturer: TelCom

COMMON
ANALOG
V IN
V IN
+
–
32
30
31
C REF
+
INT
10
A/Z
INT
A
34
V REF
+
DE (+)
36
A/Z
DE
(–)
AZ & DE ( )
C REF
DE
(+)
DE (–)
V REF
–
35
A/Z
26
V
33
C REF
–
–
V + – 3.0V
–
+
V
–
+
BUFF
TC7106A
28
R INT
LOW
TEMPCO
V REF
V
+
1
29
INTEGRATOR
INTERNAL DIGITAL GROUND
OSC 1
TYPICAL SEGMENT OUTPUT
C AZ
A/Z
+
–
40
COMPARATOR
FROM COMPARATOR OUTPUT
0.5mA
2mA
CLOCK
R OSC
OSC
27
V INT
C INT
+
–
39
2
SECTION
TO SWITCH DRIVERS
SEGMENT
DIGITAL
OUTPUT
C OSC
V
+
TO
THOUSANDS
OSC 3
38
f OSC
INTERNAL DIGITAL GOUND
4
7 SEGMENT
HUNDREDS
DECODE
LCD SEGMENT DRIVERS
LCD DISPLAY
DATA LATCH
CONTROL LOGIC
7 SEGMENT
DECODE
TENS
V TH
= 1V
7 SEGMENT
DECODE
UNITS
21
6.2V
500
200
BACKPLANE
37
26
1
V
V –
TEST
+