LTC6930 データシートの表示（PDF） - Linear Technology
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LTC6930 Datasheet PDF : 14 Pages
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Typical Performance Characteristics
LTC6930-X.XX
Typical Jitter vs Supply in
Divide by 1 Mode
0.30
TA = 25°C
0.25
4.194MHz
0.20
0.15
8.192MHz
0.10
0.05
0
1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
4216 G10
Typical Output Rise/Fall Time
vs Supply
4.5
CLOAD = 5pF
4.0
TA = 25°C
3.5
3.0
RISE TIME
2.5
2.0
FALL TIME
1.5
1.0
0.5
0
1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
4216 G13
Typical Frequency Settling
from Power-Up
10
5
0
–5
–10
–15
–20
–25
–30
0
50
100
150
200
TIME SINCE POWER APPLIED (µs)
4216 G16
Typical Period Jitter Histogram
400 LTC6930-8.19
V+ = 3V
TA = 25°C
DIVIDE = 1
300
200
100
0
–450 –300 –150 0 150
PERIOD ERROR (ps)
300 450
4216 G11
Typical Output Resistance
vs Supply Voltage
100 TA = 25°C
90
80
70
60
50
40
30
20
10
0
1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
4216 G14
Typical Frequency Error
vs Time (Long-Term Drift)
500 25 PARTS SHOWN
400 TA = 30°C
300
200
100
0
–100
–200
–300
–400
–500
0
500 1000 1500 2000 2500 3000
TIME (HOURS)
4216 G17
For more information www.linear.com/LTC6930
Typical Jitter vs Divider Setting
0.16
V+ = 3V
0.14
TA = 25°C
0.12
0.10
0.08
4.194MHz
0.06
0.04
8.192MHz
0.02
0
1
10
100
DIV SETTING (LOG)
6930 G12
Typical Output Duty Cycle
vs Supply and Divide Ratio
60
58
56
8MHz, DIVIDE BY 1
54
52
50
48 DIVIDE BY >1
46
4MHz, DIVIDE BY 1
44
42
40
1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
4216 G15
Typical Output Waveform
at DIV Pin Change
400ns/DIV
6930 G18
6930fe
7
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