DS1870 데이터 시트보기 (PDF) - Maxim Integrated
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DS1870 Datasheet PDF : 28 Pages
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LDMOS RF Power-Amplifier Bias
Controller
Typical Operating Characteristics (continued)
(VCC = +5.0V, TA = +25°C, unless otherwise noted.)
POTENTIOMETER 1 AND 2
WIPER RESISTANCE vs. WIPER VOLTAGE
1000
900
800
700
600
500
400
300
200
100
HCOM = 5.0V
0
0
1
2
3
4
5
WIPER VOLTAGE (V)
POTENTIOMETER 1 AND 2
WIPER RESISTANCE vs. TEMPERATURE
1000
900
800
700
600
500
400
300
200
100
0
-40 -20
HCOM = 5V
WIPER VOLTAGE = 4V
0 20 40 60 80 100
TEMPERATURE (°C)
POTENTIOMETER END-TO-END RESISTANCE
vs. TEMPERATURE
200
150
100
50
RPOT2 + RS2
0
-50
RPOT1 + RS1
-100
-150
-200
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
POTENTIOMETER LOW TERMINAL VOLTAGE
vs. TEMPERATURE
20
15
10
5
L1
0
-5
-10
L2
-15
HCOM = 5.0V
-20
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
3.0
VCC CONVERSION ERROR
vs. SUPPLY VOLTAGE
DEFAULT VCC
CALIBRATION
3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
VD CONVERSION ERROR
vs. INPUT VOLTAGE
DEFAULT VD
CALIBRATION
0.5 1.0 1.5 2.0 2.5
INPUT VOLTAGE (V)
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
ID1 CONVERSION ERROR
vs. INPUT VOLTAGE
DEFAULT ID1
CALIBRATION
0.1 0.2 0.3 0.4 0.5
INPUT VOLTAGE (V)
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
ID2 CONVERSION ERROR
vs. INPUT VOLTAGE
DEFAULT ID2
CALIBRATION
0.1 0.2 0.3 0.4 0.5
INPUT VOLTAGE (V)
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