Multiphase Spread-Spectrum EconOscillator
Typical Operating Characteristics (continued)
(V
= +3.3V, T = +25°C, unless otherwise noted.)
A
CC
DUTY CYCLE vs. FREQUENCY
OUTPUT FREQUENCY TOLERANCE
V
CC
= 3.3V, +25°C
V
CC
= 3.3V, +25°C
VOLTAGE FREQUENCY VARIATION
55
0.5
0
0.50
0.25
0
2φ
50
45
40
35
30
f
= 1MHz
OUT
4φ
-0.5
-1.0
-1.5
f
= 2MHz
OUT
3φ
-0.25
-0.50
f
= 125kHz
OUT
1.00
1.25
1.50
(MHz)
1.75
2.00
1.00
1.25
1.50
f (MHz)
OUT
1.75
2.00
3.0
3.2
3.0
3.5
3.6
f
SUPPLY VOLTAGE (V)
OUT
TEMPERATURE FREQUENCY VARIATON
PEAK-TO-PEAK JITTER vs. f
MOSC
0.4
0
2.5
2.0
1.5
1.0
0.8
f
= 2MHz
OUT
-.04
-0.8
-1.2
-1.6
-2.0
f
= 1MHz
OUT
f
= 125kHz
OUT
-40
-15
10
35
60
85
1.0
1.2
1.4
1.6
1.8
2.0
TEMPERATURE (°C)
f
(MHz)
MOSC
Pin Description
PIN
NAME
FUNCTION
1
2
3
4
5
6
OUT1
OUT2
Oscillator Output 1
Oscillator Output 2
Positive Supply Terminal
Ground
V
CC
GND
OUT3
OUT4
Oscillator Output 3
Oscillator Output 4
2-Wire Serial-Interface Data
Input/Output
7
8
SDA
SCL
2-Wire Serial-Interface Clock Input
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5
DALLAS [ DALLAS SEMICONDUCTOR ]
