參數(shù)資料
型號(hào): 951412AGLF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝: 6.10 MM, 0.50 MM PITCH, GREEN, MO-153, TSSOP-56
文件頁(yè)數(shù): 9/25頁(yè)
文件大小: 246K
代理商: 951412AGLF
17
ICS951412
0883L—04/26/06
SRC Reference Clock
Common Recommendations for Differential Routing
Dimension or Value
Unit
Figure
L1 length, Route as non
-coupled 50 ohm trace.
0.5 max
inch
2, 3
L2 length, Route as non
-coupled 50 ohm trace.
0.2 max
inch
2, 3
L3 length, Route as non
-coupled 50 ohm trace.
0.2 max
inch
2, 3
Rs
33
ohm
2, 3
Rt
49.9
ohm
2, 3
Down Device Differential Routing
Dimension or Value
Unit
Figure
L4 length, Route as coupled
microstrip
100 ohm
differential trace.
2 min to 16 max
inch
2
L4 length, Route as coup
led stripline
100 ohm
differential trace.
1.8 min to 14.4 max
inch
2
Differential Routing to PCI Express Connector
Dimension or Value
Unit
Figure
L4 length, Route as coupled
microstrip
100 ohm
differential trace.
0.25 to 14 max
inch
3
L4 length, Rout
e as coupled
stripline
100 ohm
differential trace.
0.225 min to 12.6
max
inch
3
Fig.1
Rs
Rt
HSCL Output
Buffer
PCI Ex
REF_CLK
Test Load
L1
L2
L3’
L4
L1’
L2’
L3
L4’
Fig.2
Rs
Rt
HSCL Output
Buffer
PCI Ex Board
Down Device
REF_CLK Input
L1
L2
L3’
L4
L1’
L2’
L3
L4’
Fig.3
Rs
Rt
HSCL Output
Buffer
PCI Ex
Add In Board
REF_CLK Input
L1
L2
L3’
L4
L1’
L2’
L3
L4’
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