ICS557-01 datasheet(4/10 Pages) ICST

4 / 10 page

PCI-EXPRESS CLOCK SOURCE

MDS 557-01 F

Revision 011606

In te gr ated Circuit Systems ● 525 Ra ce Street, San Jose, CA 9512 6 ● tel (4 08) 297-1 201 ● www.icst.com

ICS557-01

PCI-Express Layout Guidelines

Figure 1: PCI-Express Device Routing

Typical PCI-Express (HCSL)

Waveform

Recommendations for Differential Routing

Dimension

as non-coupled 50 ohm trace.

0.5

as non-coupled 50 ohm trace.

0.2

as non-coupled 50 ohm trace.

0.2

ferential Routing on a Single PCB

Dimension

as coupled microstrip 100 ohm differential trace.

2 min to

as coupled stripline 100 ohm differential trace.

1.8 min to

ial Routing to a PCI Express Connector

Dimension

as coupled microstrip 100 ohm differential trace.

0.25 to

as coupled stripline 100 ohm differential trace.

0.225 min t

PCI-Express

Load or

Connector

L3’

L1’

L2’

L4’

ICS557-01

Output

Clock

0.175 V

0.52 V

0.175 V

0.52 V

500 ps

700 mV

ICS557-01 Datasheet(PDF) 4 Page - Integrated Circuit Systems

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