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參數資料
| 型號： | W48S101 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Spread Spectrum Motherboard Frequency Generator |
| 中文描述： | 擴頻主板頻率發生器 |
| 文件頁數： | 11/12頁 |
| 文件大?。?/td> | 143K |
| 代理商： | W48S101 |
W48S101-04
PRELIMINARY
11
Document #: 38-00853
48MHz0:1 Clock Output (Lump Capacitance Test Load = 20 pF = 66.6/100 MHz)
Parameter
f
Description
Test Condition/Comments
Determined by PLL divider ratio (see m/n below)
CPU = 66.8/100 MHz
Unit
MHz
Min.
Typ.
48.008
Max.
Frequency, Actual
f
D
m/n
Deviation from 48 MHz
(48.008
–
48)/48
+167
ppm
PLL Ratio
(14.31818 MHz x 57/17 = 48.008 MHz)
57/17
t
R
t
F
t
D
f
ST
Output Rise Edge Rate
Measured from 0.4V to 2.4V
0.5
2
V/ns
Output Fall Edge Rate
Measured from 2.4V to 0.4V
0.5
2
V/ns
Duty Cycle
Measured on rising and falling edge at 1.5V
45
55
%
Frequency Stabilization
from Power-up (cold start)
Assumes full supply voltage reached within 1 ms
from power-up. Short cycles exist prior to fre-
quency stabilization.
3
ms
Z
o
AC Output Impedance
Average value during switching transition. Used
for determining series termination value.
40
Ordering Information
Ordering Code
W48S101
Freq. Mask
Code
-04
Package
Name
H
Package Type
48-pin SSOP (300 mils)
相關PDF資料 |
PDF描述 |
|---|---|
| W48S111-14 | Spread Spectrum Desktop/Notebook System Frequency Generator(寬頻譜桌上型/筆記本系統頻率發生器) |
| W48S111 | Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S87-04 | Spread Spectrum 3 DIMM Desktop Clock(寬頻譜3 DIMM桌上型PC機時鐘) |
| W48S87-72H | CPU System Clock Generator |
| W48S87 | Spread Spectrum 3 DIMM Desktop Clock |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W48S101-04 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum Motherboard Frequency Generator |
| W48S111 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S111-14 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum Desktop/Notebook System Frequency Generator |
| W48S87 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Desktop/Notebook Frequency Generator |
| W48S87-04 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Spread Spectrum 3 DIMM Desktop Clock |
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