14

Integrated

Circuit

Systems, Inc.

ICS9LPRS480

1391D—02/02/09

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

NOTES

Long Accuracy

ppm

see Tperiod min-max values

-300

300

ppm

1,2

66.67MHz output nominal

14.9955

15.0045

ns

2

66.67MHz output spread

14.9955

15.0799

ns

2

Output High Voltage

1.6

1.8

V

1

Output Low Voltage

0

0.2

V

1

Rise Time

1.5

ns

1

Fall Time

1.5

ns

1

Duty Cycle

45

55

%

1

Jitter, Cycle to cycle

300

ps

1

Jitter, Long Term

1

ns

1

*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 33Ω (unless otherwise specified)

Electrical Characteristics - Single-ended HTT 66MHz Clock

HTT66 Clock period

Electrical Characteristics - USB - 48MHz

PARAMETER

SYMBOL

CONDITIONS*

MIN

TYP

MAX

UNITS

NOTES

Long Accuracy

ppm

see Tperiod min-max values

-100

100

ppm

1,2

Clock period

48.00MHz output nominal

20.8229

20.8344

ns

2

Clock Low Time

Measure from < 0.6V

9.3750

11.4580

ns

2

Clock High Time

Measure from > 2.0V

9.3750

11.4580

ns

2

Output High Voltage

2.4

V

1

Output Low Voltage

0.55

V

1

-33

mA

1

-33

mA

1

30

mA

1

38

mA

1

Rise Time

0.5

1.5

ns

1

Fall Time

0.5

1.5

ns

1

Duty Cycle

45

55

%

1

Group Skew

250

ps

1

Jitter, Cycle to cycle

130

ps

1,2

*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 33Ω (unless otherwise specified)

Output Low Current

Output High Current