1250A—07/31/07

Advance Information

ICS9DBL411

Four Output Differential Buffer for PCI Express

6

AC Electrical Characteristics - DIF Low Power Differential Outputs

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX

UNITS NOTES

Rising Edge Slew Rate

t

SLR

Differential Measurement

1

2.5

V/ns

1,2

Falling Edge Slew Rate

t

FLR

Differential Measurement

1

2.5

V/ns

1,2

Slew Rate Variation

t

SLVAR

Single-ended Measurement

20

%

1

Maximum Output Voltage

V

HIGH

Includes overshoot

1150

mV

1

Minimum Output Voltage

V

LOW

Includes undershoot

-300

mV

1

Differential Voltage Swing

V

SWING

Differential Measurement

300

mV

1

Crossing Point Voltage

V

XABS

Single-ended Measurement

300

550

mV

1,3,4

Crossing Point Variation

V

XABSVAR

Single-ended Measurement

140

mV

1,3,5

D

CYCDIS1

Dif Measurement, fIN<=267MHz

+5

%

1,6

D

CYCDIS2

Dif Measurement, fIN>267MHz

+7

%

1,6

DIF Jitter - Cycle to Cycle

DIFJ

C2C

Differential Measurement,

Additive

25

ps

1

DIF[3:0] Skew

DIF

SKEW

Differential Measurement

50

ps

1

Propagation Delay

t

PD

Input to output Delay

2.5

3.5

ns

1

PCIe Gen2 Phase Jitter -

Addtive

t

phase_addHI

1.5MHz < fIN < Nyquist (50MHz)

0.8

ps rms

1

PCIe Gen2 Phase Jitter -

Addtive

t

phase_addLO

10KHz < fIN < 1.5MHz

0.1

ps rms

1

Notes on Electrical Characteristics:

Duty Cycle Distortion

CLK and falling edge of CLK#. It is measured using a +/-75mV window centered on the average cross point where CLK meets

CLK#.