ics9db102 Integrated Device Technology, ics9db102 Datasheet - Page 6

• Manufacturer Part Number: ics9db102
• Description: 2 Output Pci Express Buffer With Clkreq Function
• Manufacturer: Integrated Device Technology

IDT
ICS9DB102
2 Output PCI Express* Buffer with CLKREQ# Function
TM
/ICS
TM
2 Output Express* Buffer with CLKREQ# Function
Figure 2
Figure 1 Down device routing.
Figure 1
Figure 2 PCI Express Connector Routing.
HSCL Output
HSCL Output
L1 length, Route as non-coupled 50 ohm trace.
L2 length, Route as non-coupled 50 ohm trace.
L3 length, Route as non-coupled 50 ohm trace.
Rs
Rt
L4 length, Route as coupled microstrip 100 ohm differential trace.
L4 length, Route as coupled stripline 100 ohm differential trace.
L4 length, Route as coupled microstrip 100 ohm differential trace.
L4 length, Route as coupled stripline 100 ohm differential trace.
Buffer
Buffer
Common Recommendations for Differential Routing
Differential Routing to PCI Express Connector
Down Device Differential Routing
L1
L1’
L1
L1’
Rs
Rs
Rs
Rs
L2
L2
L2’
L2
L3’
L3’
SRC Reference Clock
Rt
Rt
L3
6
L3
Rt
Rt
L4’
49.9
L4
0.5 max
0.2 max
0.2 max
33
2 min to 16 max
1.8 min to 14.4 max
0.25 to 14 max
0.225 min to 12.6 max
L4’
L4
Dimension or Value
Dimension or Value
Dimension or Value
REF_CLK Input
Add In Board
ICS9DB102
PCI Ex
inch
inch
inch
ohm
ohm
inch
inch
inch
inch
Unit
Unit
Unit
REF_CLK Input
PCI Ex Board
Down Device
Figure
Figure
Figure
2
1
1
1
1
1
1
1
2
REV G 12/14/07