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| 型号： | TC7106IKW |
| 厂商： | Microchip Technology |
| 文件页数： | 6/34页 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DGT LCD DVR 44MQFP |
| 标准包装： | 96 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，3.5 位数字 |
| 电流 - 电源： | 800µA |
| 电源电压： | 9V |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 托盘 |
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TC7106/A/TC7107/A
2.0
PIN DESCRIPTIONS
TABLE 2-1:
Pin Number
PIN FUNCTION TABLE
Pin No.
(40-Pin PDIP)
Normal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
(40-Pin PDIP)
(Reversed
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
(14)
Symbol
V+
D 1
C 1
B 1
A 1
F 1
G 1
E 1
D 2
C 2
B 2
A 2
F 2
E 2
D 3
B 3
F 3
E 3
AB 4
POL
BP/GND
G 3
A 3
C 3
G 2
V-
V INT
Description
Positive supply voltage.
Activates the D section of the units display.
Activates the C section of the units display.
Activates the B section of the units display.
Activates the A section of the units display.
Activates the F section of the units display.
Activates the G section of the units display.
Activates the E section of the units display.
Activates the D section of the tens display.
Activates the C section of the tens display.
Activates the B section of the tens display.
Activates the A section of the tens display.
Activates the F section of the tens display.
Activates the E section of the tens display.
Activates the D section of the hundreds display.
Activates the B section of the hundreds display.
Activates the F section of the hundreds display.
Activates the E section of the hundreds display.
Activates both halves of the 1 in the thousands display.
Activates the negative polarity display.
LCD Backplane drive output (TC7106A). Digital Ground (TC7107A).
Activates the G section of the hundreds display.
Activates the A section of the hundreds display.
Activates the C section of the hundreds display.
Activates the G section of the tens display.
Negative power supply voltage.
Integrator output. Connection point for integration capacitor. See INTEGRATING
CAPACITOR section for more details.
28
29
(13)
(12)
V BUFF
C AZ
Integration resistor connection. Use a 47 k Ω resistor for a 200 mV full scale range
and a 47 k Ω resistor for 2V full scale range.
The size of the auto-zero capacitor influences system noise. Use a 0.47 μF capacitor
30
31
32
(11)
(10)
(9)
V IN -
V IN +
ANALOG
The analog LOW input is connected to this pin.
The analog HIGH input signal is connected to this pin.
This pin is primarily used to set the Analog Common mode voltage for battery
COMMON operation or in systems where the input signal is referenced to the power supply. It
32)” on ANALOG COMMON for more details.
33
34
(8)
(7)
C REF -
C REF +
See Pin 34.
A 0.1 μF capacitor is used in most applications. If a large Common mode voltage
exists (for example, the V IN - pin is not at analog common), and a 200 mV scale is
used, a 1 μF capacitor is recommended and will hold the rollover error to 0.5 count.
35
DS21455D-page 6
(6)
V REF -
See Pin 36.
? 2008 Microchip Technology Inc.
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