DS1094LU datasheet(5/11 Pages) DALLAS

5 / 11 page

Multiphase Spread-Spectrum EconOscillator

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Typical Operating Characteristics (continued)

(VCC = +3.3V, TA = +25°C, unless otherwise noted.)

Pin Description

NAME

FUNCTION

OUT1

Oscillator Output 1

OUT2

Oscillator Output 2

3VCC

Positive Supply Terminal

GND

Ground

OUT3

Oscillator Output 3

OUT4

Oscillator Output 4

SDA

2-Wire Serial-Interface Data

Input/Output

SCL

2-Wire Serial-Interface Clock Input

DUTY CYCLE vs. FREQUENCY

VCC = 3.3V, +25°C

fOUT (MHz)

1.75

1.50

1.25

1.00

2.00

4φ

3φ

2φ

OUTPUT FREQUENCY TOLERANCE

VCC = 3.3V, +25°C

fOUT (MHz)

1.75

1.50

1.25

-1.0

-0.5

0.5

-1.5

1.00

2.00

VOLTAGE FREQUENCY VARIATION

SUPPLY VOLTAGE (V)

3.5

3.0

3.2

-0.25

0.25

0.50

-0.50

3.0

3.6

fOUT = 1MHz

fOUT = 2MHz

fOUT = 125kHz

TEMPERATURE FREQUENCY VARIATON

TEMPERATURE (°C)

-15

-1.6

-1.2

-0.8

-.04

0.4

-2.0

-40

fOUT = 2MHz

fOUT = 1MHz

fOUT = 125kHz

PEAK-TO-PEAK JITTER vs. fMOSC

fMOSC (MHz)

1.8

1.6

1.4

1.2

1.0

1.5

2.0

2.5

0.8

1.0

2.0

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