MAX1474AXT-T 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1474AXT-T Datasheet PDF : 8 Pages
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Miniature Electronically Trimmable Capacitor
(VDD = +5V, VSS = 0, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
CAPACITANCE vs. TEMPERATURE
11.00
DAT = 31 PULSES
10.99
10.98
10.97
10.96
10.95
10.94
10.93
10.92
10.91
10.90
-40 -15
10 35 60 85 110 125
TEMPERATURE (°C)
CAPACITANCE vs. VOLTAGE
(SINGLE ENDED)
16.0
DAT = 31 PULSES,
SEE FIGURE 3a.
15.6
VCC = +3.3V
15.2
VCC = +5V
14.8
14.4
14.0
0
1
2
3
4
5
VOLTAGE (V)
CAPACITANCE vs. VOLTAGE
(DIFFERENTIAL)
11.10
11.05
DAT = 31 PULSES,
VCC = +5V,
SEE FIGURE 3b.
11.00
10.95
10.90
-5 -4 -3 -2 -1 0 1 2 3 4 5
VOLTAGE (V)
EFFECTIVE CAPACITANCE
vs. FREQUENCY
39
36
33
30
31 DAT PULSES
27
24
21 15 DAT PULSES
18
0 DAT PULSES
15
12
9
6
50 200 350 500 650 800 950 1100
FREQUENCY (MHz)
QUALITY FACTOR vs. FREQUENCY
100
10
1
10
100
1000
FREQUENCY (MHz)
QUALITY FACTOR vs. CAPACITANCE
20
18
16
14
12
10
8
6
4
2
0
6 7 8 9 10 11 12 13 14
CAPACITANCE (pF)
SELF-RESONANT
FREQUENCY vs. DAT PULSES
1200
1150
SMITH CHART:
0 DAT PULSES
1100
1050
1000
f1
950
900
850
800
0 4 8 12 16 20 24 28 32
DAT PULSES
f1 = 1200MHz
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