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9DB233 Datasheet, PDF (7/14 Pages) Integrated Device Technology – Two Output Differential Buffer for PCIe Gen3 | |||
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9DB233
Two Output Differential Buffer for PCIe Gen3
Datasheet
SRC Reference Clock
Common Recommendations for Differential Routing
Dimension or Value
L1 length, route as non-coupled 50ohm trace
0.5 max
L2 length, route as non-coupled 50ohm trace
0.2 max
L3 length, route as non-coupled 50ohm trace
0.2 max
Rs
33
Rt
49.9
Unit Figure
inch 1
inch 1
inch 1
ohm 1
ohm 1
Down Device Differential Routing
L4 length, route as coupled microstrip 100ohm differential trace 2 min to 16 max
L4 length, route as coupled stripline 100ohm differential trace 1.8 min to 14.4 max
inch 1
inch 1
Differential Routing to PCI Express Connector
L4 length, route as coupled microstrip 100ohm differential trace 0.25 to 14 max
inch 2
L4 length, route as coupled stripline 100ohm differential trace 0.225 min to 12.6 max inch 2
Figure 1: Down Device Routing
L1
L2
Rs
L1'
HCSL Output Buffer
L2'
Rs
Rt
L4
L4'
Rt
L3' L3
PCI Express
Down Device
REF_CLK Input
Figure 2: PCI Express Connector Routing
L1
L2
Rs
L1'
HCSL Output Buffer
L2'
Rs
Rt
L4
L4'
Rt
PCI Express
Add-in Board
REF_CLK Input
L3' L3
IDT® Two Output Differential Buffer for PCIe Gen3
7
1667Câ04/20/11
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