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EK09 PDF预览

EK09

更新时间: 2024-12-01 03:34:03
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APEX 二极管
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4页 226K
描述
EVALUATION KIT FOR TO-3 AND MO-127 PACKAGES

EK09 数据手册

 浏览型号EK09的Datasheet PDF文件第2页浏览型号EK09的Datasheet PDF文件第3页浏览型号EK09的Datasheet PDF文件第4页 
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INTRODUCTION  
ASSEMBLY  
Thiskitprovidesasolidmechanicalplatformwithgoodshield-  
ingandgroundingtobreadboardeightpinTO-3packagesorthe  
MO-127 package with 0.060" pins. This kit is not intended as  
an alternate for kits dedicated to specific amplifiers. See www.  
apexmicrotech.com for availability of dedicated kits.  
Letusdefinethesideofthetopboardwithsolderpadsforeach  
pin (roughly triangular on the TO-3 sockets) as the component  
side, where all the support components will determine circuit  
function and will be inside the finished box. The other side of  
this board is hereby dubbed the amplifier side.  
Constructionwillinvolvesurfacemountingand3Dtechniques.  
HolesareprovidedtomountstandardbananaandBNCconnec-  
tors for I/O. See the Apex Accessories Information data sheet  
for a selection of flat-back heatsinks and thermal washers for  
these packages.  
Note that HS11 is compatible with EK09 and all three sockets  
can be used if desired. If the EK09 is to be used as an MO-127  
platform only, HS18 rated at 1° C/W is a cost effective alterna-  
tive to HS11 if internal power dissipation permits. Lower cost  
alternativesfortwopackageTO-3applicationsareHS02,HS01,  
and HS09. For single package TO-3 applications the HS13 is  
also suitable. The six chip capacitors provided can be used as  
the critical first step in power supply bypass for dual supplies  
for all three sockets. These capacitors are rated at 200V.  
Insert cage jacks from the amplifier side and solder. Consider  
one of these techniques: 1) Place cage jacks in holes, cover  
with one of the 6" copper sides, flip over and solder, or 2) place  
cage jacks on pins of the amplifier, insert and solder. If done  
carefully, technique 2 can be used for the MO-127 package  
with 0.040" leads.  
Starting with one short and one long side, locate a vertical  
square corner in your work area (a large heatsink standing  
on end works fine) and solder the two together. Repeat for  
the other two sides, and finally solder the two pairs together.  
With the component side up , place rectangle of sides on top  
and tack two opposite corners. When satisfied with alignment,  
solder the box together then add connectors and components  
as desired.  
Note that copper on the inside and on the top of the box will  
all be tied to ground. Copper on the four outer sides of the box  
will be floating unless you tie them down.  
PARTS LIST  
Part #  
Description  
top  
side  
side  
cage jacks for one TO-3 socket  
cage jacks for one MO-127 socket  
Quantity  
PB99-P2  
PB99- P6  
PB99-P7  
MS02  
1
2
2
2
1
Solderingastranded#10to#16groundwirefromtheimmedi-  
ate area of the socket(s) to the ground connector of the power  
supply(ies) is good construction practice. If the circuit is not a  
bridge, run this same size wire from the socket area to the out-  
put return connector. This will avoid high currents in the ground  
plane which may destroy signal integrity or even an amplifier.  
This is a good time to think about star grounding where each  
ground connection has a dedicated path to the center of the  
star such that currents in any path are not capable of inducing  
voltage in any other path.  
MS04  
OX7R105KWN 1µF Cap 1825B105K201N,Novacap  
6
BEFORE YOU GET STARTED  
Attempt to visualize the finished circuit mechanically and in  
terms of where the high currents flow.  
Use proper ESD precautions.  
Verify heatsink is adequate  
Use thermal grease or Apex thermal washer.  
Do not make or break any connection on a hot circuit.  
Start with lowest rated voltages.  
Note that the layout makes it easy to locate the star center  
nearly coincident with the socket center.  
Auxiliary circuits may be mounted inside the box in 3-D fash-  
ion supported on ground connections or on daughter boards  
as convenient. Other style connectors, switches or indicators  
can easily be added by simply drilling the appropriate holes  
and mounting them.  
Checking for oscillations with an oscilloscope is a must.  
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com  
1

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