12

Integrated

Circuit

Systems, Inc.

ICS951104

Preliminary Product Preview

0485G—10/13/05

Electrical Characteristics - CPUCLKT/C

TA = 0 - 70º C; VDD = 3.3 V +/-5%; (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Current Source Output

Impedance

ZO

VO = VX

3000

W

Output High Voltage

VOH

0.71

1.2

V

Output High Current

IOH

-13.9

mA

Rise Time

1

tr

VOL = 20%, VOH = 80%

175

600

ps

Differential Crossover Voltage

1

VX

Note 3

45

50

55

%

Duty Cycle

1

dt

VT = 50%

45

51

55

%

Skew

1, CPU to CPU

tsk

VT = 50%

100

ps

Jitter, Cycle-to-cycle

1

tjcyc-cyc

VT = VX

150

ps

Notes:

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

VR = 475W +1%; IREF = 2.32mA; IOH = 6*IREF

Electrical Characteristics - PCICLK

TA = 0 - 70C; VDD = 3.3 V +/-5%; CL = 10-30 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Frequency

F0

1

33.33

MHz

Output Impedance

RDSN1

1

VO = VDD*(0.5)

12

55

W

Output High Voltage

VOH1

IOH = -1 mA

2.4

V

Output Low Voltage

VOL1

IOL = 1 mA

0.55

V

Output High Current

IOH1

VOH@ MIN = 1.0 V, VOH@ MAX = 3.135 V

-33

-33

mA

Output Low Current

IOL1

VOL@ MIN = 1.95 V, VOL@ MAX= 0.4

30

38

mA

Rise Time

tr1

1

VOL = 0.4 V, VOH = 2.4 V

0.5

2.5

ns

Fall Time

tf1

1

VOH = 2.4 V, VOL = 0.4 V

0.5

2.5

ns

Duty Cycle

dt1

1

VT = 1.5 V

45

55

%

Skew

tsk1

1

VT = 1.5 V

150

ps

Jitter PCI (5:0)

tjcyc-cyc

1

VT = 1.5 V

350

ps

Jitter PCI_E

tCYC-CYC

VT = 1.5V

200

ps

Skew PCI_E-PCI (5:0)

tSK

VT = 1.5V

13.2

3.5

ns

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