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參數(shù)資料
| 型號： | 22495 |
| 英文描述： | Implementation of Write Allocate Application Note Mobile AMD-K6 Processor Power Supply Design Application Note |
| 中文描述： | 在寫分配執(zhí)行情況的說明移動應(yīng)用的AMD - K6處理器電源設(shè)計應(yīng)用指南 |
| 文件頁數(shù)： | 29/50頁 |
| 文件大?。?/td> | 1087K |
| 代理商： | 22495 |
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Decoupling and Layout Recommendations
19
22495C/0—May 1999
Mobile AMD-K6
Processor Power Supply Design
giving a clear indication of the power supplied. While limiting
the scope bandwidth for bulk decoupling verification gives a
clear indication of the low frequency issues, AMD recommends
rechecking with at least a 250-MHz bandwidth for verifying the
high-frequency decoupling.
AMD used a Tektronix 684B scope with 6245 probes and an
HP54720 with 54701 probes. (There was no significant
difference between these two instruments.) The data was taken
over a 40-second window with the scope set to infinite
persistence. AMD made measurements running Winstone
under the Windows
95 operating system, running DOS EDIT
pull down, and running Maxpwr99.exe while toggling
STPCLK#. The latter case created the worst measured-case
current transient. In addition, this is the case that requires the
maximum decoupling capacitance.
The table “Voltage Regulator Vendor Information” on page 40
lists some possible power supply solutions. The listed regulators
are ones that AMD believes can meet the processor
requirements (with proper decoupling). AMD has not tested
any of the mobile power supplies.
Output Voltage
Response
Measurement Utility
AMD has developed the Maxpwr99.exe utility to assist in
designing systems that comply with the AMD-K6 processors
power and thermal requirements. This utility can verify that
the supply voltage remains stable during a transition to a
higher power/current consumption level.
This utility is DOS based. For systems based on the Windows 95
or Windows 98 operating systems, re-boot in DOS mode or boot
from a bootable DOS floppy disk that contains the utility. For
systems based on the Windows NT
and OS/2 operating systems,
boot from a bootable DOS floppy disk that contains the utility.
The command line for this utility is as follows: (
Note:
Do not
execute the utility in a DOS window or with a memory manager
loaded.
)
c:\>Maxpwr99.exe
The Maxpwr99.exe utility is available under a non-disclosure
agreement. Contact your local AMD sales office for
information.
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| 224CNQ045 | SCHOTTKY RECTIFIER |
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