參數(shù)資料
型號(hào)： 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(dòng)應(yīng)用的AMD - K6處理器電源設(shè)計(jì)應(yīng)用指南
文件頁(yè)數(shù)： 28/50頁(yè)
文件大?。?/td> 1087K
代理商： 22495
18
Decoupling and Layout Recommendations
Mobile AMD-K6
Processor Power Supply Design
22495C/0—May 1999
Similarly, Figure 10 shows the voltage drop as a function of bulk
decoupling. The graph was calculated using 55-m
ESR 470
-
μ
F
capacitors, and gives the designer a visual representation of
how much bulk decoupling is required. For example, at 2350
μ
F,
the voltage is 2.11V (8.5A current transient), leaving little
margin for DC-tolerance errors. At 3760
μ
F, the voltage is 2.14V,
allowing 0.04V for set point tolerance.
Figure 10. Bulk Decoupling versus Output Voltage Response for a 2.2V
Processor Core @ 8.5 amps
Output Voltage Response Measurement Techniques
To measure output voltage response, run a program such as DOS
EDIT and toggle STPCLK# every 40
μ
s or slower. (AMD has
developed the Maxpwr99.exe utility
. See “Output Voltage
Response Measurement Utility” for more information.)
Measure the voltage at the back of the board right under the
processor. Use a scope probe with a ground connection next to
the tip. The 3 inch to 6 inch ground leads that come off the side
of a scope probe have too much inductance for this type of
measurement. The scope bandwidth can be limited to 20MHz,
Output Voltage vs. Capacitance
1.7
1.75
1.8
1.85
1.9
1.95
2
2.05
2.1
2.15
2.2
0
470
940
1410 1880 2350 2820 3290 3760 4230 4700
Capacitance in uF
V
Volts
相關(guān)PDF資料
PDF描述
224CNQ SCHOTTKY RECTIFIER
224CNQ040 Proximity Sensor; Sensor Input Type:Magnetic; Sensor Output Type:NPN; Leaded Process Compatible:No; Output Type:3 Wire; Peak Reflow Compatible (260 C):No; Sensor Housing:Barrel
224CNQ045 SCHOTTKY RECTIFIER
224CNQ035 SCHOTTKY RECTIFIER
225.1 Fuse
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
224951 制造商:Q-MAX 功能描述:CUTTER ROUND 76.5MM
2249520 制造商: 功能描述: 制造商:OSM 功能描述: 制造商:undefined 功能描述:
224953 制造商:Q-MAX 功能描述:CUTTER SQUARE 19.0MM
224954 制造商:Q-MAX 功能描述:CUTTER SQUARE 25.4MM 制造商:Q-MAX 功能描述:CUTTER, SQUARE, 25.4MM
224956 制造商:Q-MAX 功能描述:PUNCH METAL RECTANGULAR 17.5X24.0MM
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