8

Integrated

Circuit

Systems, Inc.

ICS952624

0768B—08/06/03

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Notes

Long Accuracy

ppm

see Tperiod min-max values

-200

200

ppm1,2

Clock period

Tperiod

48.008MHz output nominal

20.8257

20.8340

ns

2

Output High Voltage

VOH

IOH = -1 mA

2.4

V

Output Low Voltage

VOL

IOL = 1 mA

0.55

V

V OH@MIN = 1.0 V

-33

mA

VOH@MAX = 3.135 V

-33

mA

VOL @MIN = 1.95 V

30

mA

VOL@MAX = 0.4 V

38

mA

Edge Rate

Rising edge rate

2

4

V/ns

1

Edge Rate

Falling edge rate

2

4

V/ns

1

Rise Time

tr1

VOL = 0.4 V, VOH = 2.4 V

0.5

0.87

1

ns

1

Fall Time

tf1

VOH = 2.4 V, VOL = 0.4 V

0.5

0.89

1

ns

1

Duty Cycle

dt1

VT = 1.5 V

45

52.3

55

%

1

Skew

tsk1

VT = 1.5 V

1ns

1

Long Term Jitter

125us period jitter

(8kHz frequency modulation

amplitude)

0.636

2

ns

1

1Guaranteed by design, not 100% tested in production.

TA = 0 - 70°C; VDD = 3.3V +/-5%; CL = 5-10 pF (unless otherwise specified)

Electrical Characteristics - 48MHz DOT Clock

2 All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is at

14.31818MHz

Output High Current

IOH

Output Low Current

IOL