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参数资料
| 型号： | ICS950401YF-T |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 220 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封装： | 0.300 INCH, MO-118, SSOP-48 |
| 文件页数： | 8/14页 |
| 文件大小： | 108K |
| 代理商： | ICS950401YF-T |
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
2C 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
2C interface allows changing functions, stop clock programming and frequency selection.
Power Groups
VDDA = PLL2
Pin 32
VDDA = VDD for Core PLL
Pin 43
VDDREF = REF, Xtal
Pin 2
Skew Characteristics
Parameter
Description
Test Conditons
Skew
Window
Unit
Tsk_CPU_CPU
measured at x-ing of CPU,
250
ps
Tsk_CPU_PCI
measured at x-ing of CPU,
1.5V of PCI clock
2000
ps
Tsk_PCI_PCI
measured between rising
edge at 1.5V
500
ps
Tsk_PCI33-HT66
measured between rising
edge at 1.5V
500
ps
Tsk_CPU_HT66
measured between rising
edge at 1.5V
2000
ps
Tsk_CPU_HT66
measured at x-ing of CPU,
1.5V of PCI clock
500
ps
Tsk_CPU_CPU
measured at x-ing of CPU,
200
ps
Tsk_CPU_PCI
measured at x-ing of CPU,
1.5V of PCI clock
200
ps
Tsk_PCI_PCI
measured between rising
edge at 1.5V
200
ps
Tsk_PCI33-HT66
measured between rising
edge at 1.5V
200
ps
Tsk_CPU_HT66
measured between rising
edge at 1.5V
200
ps
Tsk_CPU_HT66
measured at x-ing of CPU,
1.5V of PCI clock
200
ps
time independent
skew
not dependent on
V, T changes
time variant skew
varies over
V, T changes
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS950402 | 制造商:ICS 制造商全称:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YFLF-T | 制造商:ICS 制造商全称:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950402YGLF-T | 制造商:ICS 制造商全称:ICS 功能描述:AMD - K8 System Clock Chip |
| ICS950403 | 制造商:ICS 制造商全称:ICS 功能描述:AMD - K8? System Clock Chip |
| ICS950405 | 制造商:ICS 制造商全称:ICS 功能描述:AMD - K8 System Clock Chip |
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