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參數(shù)資料
| 型號： | CY2283 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | PentiumII, K6, 6x86 100-MHz Clock Synthesizer/Driver for Desktop PCs with ALI or VIA Chipsets, AGP and 3 DIMMs(帶ALI或VIA芯片組，AGP和3DIMM應用于桌上型PC機的奔II，K6, 6x86 100MHz時鐘合成器/驅(qū)動器) |
| 中文描述： | PentiumII，K6，6x86 100 MHz的時鐘合成器/驅(qū)動器與阿里或威盛芯片組，AGP和3個DIMM（帶急性肺損傷或威盛芯片組，AGP接口和3DIMM應用于桌上型電腦機的奔二，K6，6x86桌面電腦100MHz的時鐘合成器/驅(qū)動器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 218K |
| 代理商： | CY2283 |
CY2283
PRELIMINARY
10
Application Circuit
Clock traces must be terminated with either series or parallel termination, as they are normally done
Summary
A parallel-resonant crystal should be used as the reference to the clock generator. The operating frequency and C
of
this crystal should be as specified in the data sheet. Optional trimming capacitors may be needed if a crystal with a different
C
LOAD
is used. Footprints must be laid out for flexibility.
Surface mount, low-ESR, ceramic capacitors should be used for filtering. Typically, these capacitors have a value of 0.1
μ
F.
In some cases, smaller value capacitors may be required.
The value of the series terminating resistor satisfies the following equation, where R
is the loaded characteristic impedance
of the trace, R
out
is the output impedance of the clock generator (specified in the data sheet), and R
series
is the series terminating
resistor.
R
series
> R
trace
– R
out
Footprints must be laid out for optional EMI-reducing capacitors, which should be placed as close to the terminating resistor
as is physically possible. Typical values of these capacitors range from 4.7 pF to 22 pF.
A Ferrite Bead
may
be used to isolate the Board V
from the clock generator V
island. Ensure that the Ferrite Bead offers
greater than 50
and Termination Techniques for Cypress Clock Generators” for more details.
If a Ferrite Bead is used, a 10
μ
F– 22
μ
F tantalum bypass capacitor should be placed close to the Ferrite Bead. This capacitor
prevents power supply droop during current surges.
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PDF描述 |
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| CY2285 | 100-MHz PentiumII Clock Synthesizer/Driver with Spread Spectrum for Mobile PCs(應用于移動PC機并帶有寬頻譜的100MHz奔騰II時鐘合成器/驅(qū)動器) |
| CY2292FIT | Three-PLL General-Purpose EPROM Programmable Clock Generator |
| CY2292 | Three-PLL General-Purpose EPROM Programmable Clock Generator |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY2283PVC-1 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:PentiumII, K6, 6x86 100-MHz Clock Synthesizer/Driver for Desktop PCs with ALI or VIA Chipsets, AGP and 3 DIMMs |
| CY2283PVC-2 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:PentiumII, K6, 6x86 100-MHz Clock Synthesizer/Driver for Desktop PCs with ALI or VIA Chipsets, AGP and 3 DIMMs |
| CY2285 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:100-MHz Pentium㈢II Clock Synthesizer/Driver with Spread Spectrum for Mobile PCs |
| CY2285PVC-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2285PVC-2 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:100-MHz Pentium㈢II Clock Synthesizer/Driver with Spread Spectrum for Mobile PCs |
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