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參數(shù)資料
| 型號(hào)： | AMD-640 |
| 英文描述： | AMD-640 Chipset IBIS I/O Model Application Note |
| 中文描述： | AMD的640芯片組的IBIS I / O模型應(yīng)用筆記 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 377K |
| 代理商： | AMD-640 |
2
AMD-640 Chipset I/O Model
21340A/0—April 1997
IBIS Modeling
Overview
IBIS is a specification developed to provide an
industry-standard method for semiconductor manufacturers to
model the analog behavior of I/O buffers without disclosing
proprietary process data. As the availability of IBIS models has
grown, so too have the number of analog simulators that accept
IBIS models.
IBIS Usage
Modeling a PCB Net
To simulate the analog behavior of a signal on a PCB net, all
elements of the net must be modeled to ensure the simulator
generates accurate results. A net that is driven by a signal that
has a short switching transition relative to its propagation
delay is best modeled as a transmission line. The general
criterion used for deciding on a transmission line as an
appropriate model is as follows:
T
switch
< 2(T
prop
)
Where:
I
T
switch
is the time required for a signal to switch states
T
prop
is the time required for a signal to propagate from its
source to its destination
I
The typical elements of a net sourced by the chipset include the
chipset’s I/O buffer (modeled using IBIS), the transmission line
that models the PCB trace, the destination receiver(s), and any
components used for termination (See Figure 1). This net
topology is then defined in the format understood by the target
simulator.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| AMD-640CHIPSET | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
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| AMD-750 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AMD-750? Chipset Overview |
| AMD-751 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AMD-751 - AMD-751 System Controller Revision Guide |
| AMD-751AC | 制造商:Advanced Micro Devices 功能描述:SYSTEM CONTROLLER, 492 Pin, BGA |
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