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参数资料
| 型号： | 9LPRS464YGLFT |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 240 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封装： | 6.10 MM, 0.50 MM PITCH, ROHS COMPLIANT, MO-153N, TSSOP-56 |
| 文件页数： | 5/23页 |
| 文件大小： | 246K |
| 代理商： | 9LPRS464YGLFT |
13
ICS9LPRS464
System Clock Chip for ATI RS/RD600 series chipsets using AMD CPUss
IDTTM/ICSTM
System Clock Chip for ATI RS/RD600 series chipsets using AMD CPUs
1377A—04/07/08
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
L2 length, Route as non-coupled 50 ohm trace.
N/A
inch
2
L3 length, Route as non-coupled 50 ohm trace.
N/A
inch
2
Rs
33
ohm
2
Rt
49.9
ohm
2
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 coupled 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, Route as coupled stripline 100 ohm differential trace.
0.225 min to 12.6 max
inch
3
Figure 2 Down device routing.
PCI Ex Board
Down Device
REF_CLK Input
L1
L4
L1’
L4’
Figure 2
Figure 3 PCI Express Connector Routing.
Low Power Output Buffer
w/integrated series resistor
PCI Ex
Add In Board
REF_CLK Input
L1
L4
L1’
L4’
Figure 3
Low Power Output Buffer
w/integrated series resistor
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