Datasheet

LTC6930-X.XX
7
6930fd
PERIOD ERROR (ps)
–450
SAMPLES
4216 G11
–300 –150 0 150 450300
400
300
100
200
0
LTC6930-8.19
V
+
= 3V
T
A
= 25°C
DIVIDE = 1
TIME (HOURS)
0
DELTA FREQUENCY (ppm)
4216 G17
500 1000 1500 2000 30002500
500
400
300
100
200
–400
–300
–100
–200
0
–500
25 PARTS SHOWN
T
A
= 30°C
6930 G18
400ns/DIV
TIME SINCE POWER APPLIED (µs)
0
FREQUENCY ERROR (%)
4216 G16
50 100 150 200
10
5
–10
–5
–20
–15
–25
0
–30
SUPPLY VOLTAGE (V)
1.7
OUTPUT RISE/FALL TIME (ns)
4216 G13
2.2 2.7 3.2 3.7 4.2 4.7 5.2
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
FALL TIME
RISE TIME
C
LOAD
= 5pF
T
A
= 25°C
SUPPLY VOLTAGE (V)
1.7
OUTPUT RESISTANCE (Ω)
4216 G14
2.2 2.7 3.2 3.7 4.2 4.7 5.2
100
90
80
60
70
10
20
40
30
50
0
T
A
= 25°C
DIV SETTING (LOG)
1 10 100
JITTER (% RMS)
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
6930 G12
8.192MHz
4.194MHz
V
+
= 3V
T
A
= 25°C
SUPPLY VOLTAGE (V)
1.7
JITTER (% RMS)
4216 G10
2.2 2.7 3.2 3.7 4.2 4.7 5.2
0.30
0.25
0.20
0.15
0.10
0.05
0
8.192MHz
4.194MHz
T
A
= 25°C
TYPICAL PERFORMANCE CHARACTERISTICS
Typical Output Rise/Fall Time
vs Supply
Typical Output Resistance
vs Supply Voltage
Typical Output Duty Cycle
vs Supply and Divide Ratio
Typical Frequency Settling
from Power-Up
Typical Frequency Error
vs Time (Long-Term Drift)
Typical Output Waveform
at DIV Pin Change
Typical Jitter vs Supply in
Divide by 1 Mode
Typical Period Jitter Histogram
Typical Jitter vs Divider Setting
SUPPLY VOLTAGE (V)
1.7
DUTY CYCLE (%)
4216 G15
2.2 2.7 3.2 3.7 4.2 4.7 5.2
60
58
56
52
54
42
44
48
46
50
40
4MHz, DIVIDE BY 1
DIVIDE BY >1
8MHz, DIVIDE BY 1