ICS9DB423BGLFT IDT, Integrated Device Technology Inc, ICS9DB423BGLFT Datasheet - Page 9

• Manufacturer Part Number: ICS9DB423BGLFT
• Description: IC PC CLOCK 3.3V 28-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Bufferr

Specifications of ICS9DB423BGLFT

• Input: Clock
• Output: Clock
• Frequency - Max: 400MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9DB423BGLFT

IDT
9DB423B
Four Output Differential Buffer for PCIe for Gen 1, Gen 2 and QPI
®
Four Output Differential Buffer for PCIe Gen 1, Gen 2 and QPI
L1 length, route as non-coupled 50ohm trace
L2 length, route as non-coupled 50ohm trace
L3 length, route as non-coupled 50ohm trace
Rs
Rt
L4 length, route as coupled microstrip 100ohm differential trace 2 min to 16 max
L4 length, route as coupled stripline 100ohm differential trace
L4 length, route as coupled microstrip 100ohm differential trace 0.25 to 14 max
L4 length, route as coupled stripline 100ohm differential trace
Figure 1: Down Device Routing
HCSL Output Buffer
Figure 2: PCI Express Connector Routing
HCSL Output Buffer
Common Recommendations for Differential Routing
Differential Routing to PCI Express Connector
Down Device Differential Routing
L1'
L1
L1'
L1
Rs
Rs
Rs
Rs
DIF Reference Clock
L2'
L2
L2'
L2
9
Rt
Rt
L3'
L3'
L3
L3
Rt
0.5 max
0.2 max
0.2 max
33
49.9
1.8 min to 14.4 max
0.225 min to 12.6 max
Rt
Dimension or Value
L4'
L4
L4'
L4
REF_CLK Input
Add-in Board
PCI Express
REF_CLK Input
Down Device
PCI Express
ohm
ohm
Unit
inch
inch
inch
inch
inch
inch
inch
1437 Rev C - 01/27/11
Figure
1
1
1
1
1
1
1
2
2