DS1094L Datasheet, PDF (5/11 Pages) Dallas Semiconductor – Multiphase Spread-Spectrum EconOscillator

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