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参数资料
| 型号： | TC14433TELI |
| 元件分类： | ADC |
| 英文描述： | 1-CH DUAL-SLOPE ADC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 4/24页 |
| 文件大小： | 382K |
| 代理商： | TC14433TELI |
TC14433/A
DS21394D-page 12
2008 Microchip Technology Inc.
FIGURE 5-2:
3-1/2 Digit LED Voltmeter with Low Component Count Using Common Cathode
Display.
FIGURE 5-3:
Alternate Oscillator Circuits.
Note
1: For VREF = 2000V; V: 1.999V full scale.
2: For VREF = 200 mV; V: 199.9 mV full scale (change 470 kΩ to R = 27 kΩ and decimal point position.
3: Peak digit current for an eight displayed is 7 times the segment current:
*To increase segment current capability, add two 75491 ICs between 14511B and resistor network.
The use of the 1413 as digit driver increases digit current capability over the 75492.
**V can range between -2.8V and -11V.
CLK1
CLK0
OR
TC14433
Input
VX
300 k
Ω
Resitor Network
or Individual
Resistor*
R
+5V
Minus
Control
+5V
RM
Common
Cathode
Led Display
75492
OR
1413*
Digit Drivers
VEE**
(Minus)
Alternate Overrange Circuit
with Separated LED
+5V
OR
1/6
1/7
1413
75492
RR
OR
B1
A
B
C
D
LT
LE
I4511B
RDP
VIN
+5V
VOUT
VSS
1F
20k
Ω
MCP1525
470 k
Ω 0.1 F 0.1 F
C01 C02
R1 R1 /C C1
VX
VAG
DU
EOE
VREF
VSS
VDD
VEE
Q0
Q1
Q2
DS4 DS3 DS2 DS1
a
b
c
d
e
f
g
(B) LC Oscillator Circuit
10
L
C
11
C
For L = 5 mH and C = 0.01 F @ 22.5 kHz
10 pF < C1 and C2 < 200 pF
TC14433
CLK1
C1
C2
CLK0
CLK1
CLK0
11
10
18 M
Ω
47 k
Ω
(A) Crystal Oscillator Circuit
f
1
2
π LC
------------------
=
相关PDF资料 |
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|---|---|
| TC14433AELI | 1-CH 3-BIT DUAL-SLOPE ADC, SERIAL ACCESS, PQCC28 |
| TC14433AELITR | 1-CH 3-BIT DUAL-SLOPE ADC, SERIAL ACCESS, PQCC28 |
| TC14433AEPG | DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP24 |
| TC14433BEJG | CONVERTER SUBSYSTEM ADC, PARALLEL ACCESS, CDIP24 |
| TC14433BEPG | CONVERTER SUBSYSTEM ADC, PARALLEL ACCESS, PDIP24 |
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