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參數(shù)資料
| 型號： | ICS950401 |
| 英文描述： | AMD - K8TM System Clock Chip |
| 中文描述： | AMD公司- K8TM系統(tǒng)時鐘芯片 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 108K |
| 代理商： | ICS950401 |
3
ICS950401
0499C—11/01/04
General Description
The
ICS950401
is a main clock synthesizer chip for AMD-K8. This provides all clocks required for Clawhammer and
Sledgehammer systems.
Spread spectrum may be enabled through I
2
C programming. Spread spectrum typically reduces system EMI by 8dB
to 10dB. This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS950401
employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and
temperature variations.
Serial programming I
2
C interface allows changing functions, stop clock programming and frequency selection.
Power Groups
VDDA = PLL2
VDDA = VDD for Core PLL
VDDREF = REF, Xtal
Pin 32
Pin 43
Pin 2
Skew Characteristics
Parameter
Description
Test Conditons
Skew
Window
250
Unit
T
sk_CPU_CPU
measured at x-ing of CPU,
measured at x-ing of CPU,
1.5V of PCI clock
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured at x-ing of CPU,
1.5V of PCI clock
measured at x-ing of CPU,
measured at x-ing of CPU,
1.5V of PCI clock
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured between rising
edge at 1.5V
measured at x-ing of CPU,
1.5V of PCI clock
ps
T
sk_CPU_PCI
2000
ps
T
sk_PCI_PCI
500
ps
T
sk_PCI33-HT66
500
ps
T
sk_CPU_HT66
2000
ps
T
sk_CPU_HT66
T
sk_CPU_CPU
500
200
ps
ps
T
sk_CPU_PCI
200
ps
T
sk_PCI_PCI
200
ps
T
sk_PCI33-HT66
200
ps
T
sk_CPU_HT66
200
ps
T
sk_CPU_HT66
200
ps
time independent
skew
not dependent on
V, T changes
time variant skew
varies over
V, T changes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS950402 | AMD - K8 System Clock Chip |
| ICS950402YFLF-T | AMD - K8 System Clock Chip |
| ICS950402YGLF-T | AMD - K8 System Clock Chip |
| ICS950403 | AMD - K8⑩ System Clock Chip |
| ICS950403 | AMD - K8⑩ System Clock Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS950402 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YFLF-T | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YGLF-T | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950403 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8? System Clock Chip |
| ICS950405 | 制造商:ICS 制造商全稱:ICS 功能描述:AMD - K8 System Clock Chip |
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