ICS950902 datasheet(14/20 Pages) ICST

14 / 20 page

Integrated

Circuit

Systems, Inc.

ICS950902

0475G—03/23/04

Electrical Characteristics-CPUCLKC/T

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Current Source Output

Impedance

VO = VX

3000

Ohm

Output High Voltage

VOH

0.81

1.2

Output High Current

IOH

-13.92

Rise Time

VOL = 20%, VOH = 80%

175

270

700

Differential Crossover

Voltage

Duty Cycle

VT = 50%

50.2

Skew

1, CPU to CPU

tsk

VT = 50%

150

Jitter, Cycle-to-cycle

tjcyc-cyc

VT = VX

200

Notes:

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

VR = 475W +1%; IREF= 2.32mA;

IOH = 6*IREF

Electrical Characteristics- CPUCLKT/C_CS

TA = 0 - 70°C; VDD =2.5 V +/-5%; CL = 20 pF (unless otherwise stated)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output High Voltage

VOH2B

IOH = -12.0 mA

Output Low Voltage

VOL2B

IOL = 12 mA

0.4

Output High Current

IOH2B

VOH = 1.7 V

-19

Output Low Current

IOL2B

VOL = 0.7 V

Rise Time

tr2B

VOL = 0.4 V, VOH = 2.0 V

0.89

1.6

Differential Crossover

Voltage

Duty Cycle

dt2B

VT = 1.25 V

49.6

Skew

tsk2B

VT = 1.25 V

175

Jitter, Cycle-to-cycle

tjcy c-cy c2B

1 V

T = 1.25 V

250

Jitter, One Sigma

tj1s2B

VT = 1.25 V

150

Jitter, Absolute

tjabs2B

VT = 1.25 V

-250

250

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

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