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[aO] XӲS޴ȫ@ҪκΖ|

201#
l(f) 2006-11-24 22:56:55 | ֻԓ (li) ЇĴɶ
l(f)ٍX(qin)
202#
l(f) 2006-11-24 22:57:26 | ֻԓ (li) ЇĴɶ
ӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺӺ
203#
l(f) 2006-11-24 23:36:58 | ֻԓ (li) ЇV|

S(chng)Y


҂֪κO֮gϢĂfҪЕr(sh)_f(shu)ԕr(sh)}_a(chn)ͬĕr(sh)ԱCOgM(jn)Ϣ͔Ľf(shu)r(sh)ҪĴxb䱾Ҫr(sh)̖ҪҲǘOߵģһr(sh)̖lҪO䷀һҪкܺõ̖|(zh)кܺõغ½ҪMܵı_(ki)̖ĸɔ_҂@һξӑՓϵĕr(sh)犆(wn)}w
1        OϲͬϢݔgM(jn)ϢݔlDzͬôϵO֮gM(jn)ДݔҪʲô˜ʵĕr(sh)lϵlʷֲrӵ
2        ϵĕr(sh)犁(li)Դr(sh)犰l(f)ĹԭԼI²CĴ
3        lr(sh)̖ĕr(sh)Ҏ
4        r(sh)Ԫx
5        (sh)HеĆ(wn)}r(sh)̖Ĝyԇ̹Ϸ
һϵlʷֲr
҂һϵO֮gM(jn)ДݔҪʲôӵĕr(sh)lηֲ
204#
l(f) 2006-11-25 12:37:59 | ֻԓ (li) ЇL(chng)
2(g)
205#
̩ l(f) 2006-11-25 14:10:55 | ֻԓ (li) ЇKP
̫̫ҪX(qin)Ҳ̫
206#
X l(f) 2006-11-26 01:36:49 | ֻԓ (li) ЇV|T(mn)
xx
207#
acdlijian l(f) 2006-11-26 07:34:52 | ֻԓ (li) ЇϺ
ding
208#
ѽ?jng)]߹ l(f) 2006-11-26 17:11:22 | ֻԓ (li) Ї
209#
ѽ?jng)]߹ l(f) 2006-11-26 17:12:46 | ֻԓ (li) Ї
̫ ̫
210#
ѽ?jng)]߹ l(f) 2006-11-26 17:22:00 | ֻԓ (li) Ї
211#
ѽ?jng)]߹ l(f) 2006-11-26 17:22:28 | ֻԓ (li) Ї
K򰴕r(sh)İ
212#
h l(f) 2006-11-27 16:48:51 | ֻԓ (li) Їɽ̫ԭ
픷픵^Ѫ
213#
(li) l(f) 2006-11-27 20:23:18 | ֻԓ (li) ЇĴɶ
XS޵ĺӼg(sh)


һ늽ݵĺӣСӼ

õһKД늽ѓp͵ȰȡȻQһ(g)õ·£

޺ȡͿһӺȻFaFϵaуɂ(g)ϵaC@ӾͿ԰ȡ

һ(g)ȡ֮^(gu)һa@һ(g)õǷŲȥȻ҂Fѿ׃ȵaCaa(li)

ȻQؓOϵĘʽR֮bȻڱĿϼϺa@@(g)늽ݾͺȥ

С(xin)ᘶϷQ


PCBྀ(xin)a

PCBĔྀ(xin)ЃɷNr

1               ϵĴ־(xin)־(xin)඼ǹ늾(xin)늾(xin)ǂݔ늉ľ(xin)ͻȻ׃пܾͰѴ˾(xin)

2               ߅صһЩ(xin)Еr(sh)҂໥ĥr(sh)пܾͰ@N(xin)o

҂õһKѽ(jng)ДDz(xin)pĵԒ(hu)͵õƬєྀ(xin)Ľ^yȥ¶~Ƥ~ƤͿϺF~(xin)ϼaǿմaP䓲ճ~(xin)һa͕(hu )׃yɫһ~zͬӷ~zϺaȻ~zྀ͔(xin)ķFӟ@ӾͿ԰єྀ(xin)a֮Ϳһӽ^^


3SMDСNƬĺ

ȌL(fng)ضȴ5.5L(fng)Сֱ(zh)ȡԪӟÔzӊA(zh)ԪƄ(dng)һԪƄ(dng)f(shu)@(g)Ԫȡ(li)

޺ȡԪĺc(din)ĨһӺȻѸQԪŵc(din)ӟaܻ@(g)NƬͺ

pSMDоƬĺ

џL(fng)ضșn򵽡5.5L(fng){4(zh)оƬǴֱӟ^ľӟǣßL(fng)(zh)оƬDȦӟpеоƬ涼ֻdžӟǺyȡȡ@KпҲһҪӟӟһΕr(sh)gÔz|һ´оƬƄ(dng)f(shu)ȡÔzӰȡ¼

һ(g)оƬȡ֮|c(din)ϵaпܕ(hu )s֮γɰ͹ƽСac(din)@ӿ԰һ(g)µоƬϵĕr(sh)һ׌RԾҪѴ˺c(din)̎ƽ·£

޺Ѻc(din)ͿһӺȻFһһƽ@ӾͿȻоƬ_λ÷ǵĺc(din)RßL(fng)ӟẸc(din)ϵaۻоƬͺ庸һKȻÜyȿһǷBһѽ(jng)BһôͿÔzӄһоƬǶ](mi)Ƅ(dng)оƬѽ(jng)

I/OоƬĺ

џL(fng)ضșn5.5L(fng)򵽡3(zh)I/OоƬDӟоƬӲ嵽оƬaܻͿȡ

оƬȡ֮Ôzӽoc(din)ͿϺͿ֮FѺc(din)aƽ֮оƬǺĺc(din)һһFȰеĎׂ(g)Ǻ庸ϣ̶ãȻßL(fng)ӟaܻ@(g)оƬͺ庸

ÔzӄһоƬǷƄ(dng)ЄtmԭλF](mi)ЄtоƬ

(chng)Чܵĺ

џL(fng)Ĝضșn򵽡5.5L(fng)򵽡3(zh)ȡԪһֱӟaܻͿȡ

޺ѺͿc(din)Ȼш(chng)Чܷŵc(din)һֱӟaܻ˹ܾͺ


zyͬI/OpSMDһӣ

BGAоƬĺӣ

FоƬBGACgλFƤԓӟBGAоƬ_(ki)һֱӟȴоƬݿԁ(li)Ƅ(dng)t@(g)BGAоƬȡ


ȡ֮ϵĶao̎Ƀ£

1  ͿһӺ

2  Fϴ󲿷ֵaoε߀(hu )ʣһ

3  F(zh)a(xin)ppƄ(dng)ЩСS(chng)sĺc(din)^Ƅ(dng)a(xin)r(sh)һþƄ(dng)Ѻc(din)£֮ܛʣຸԺ(hu )KɃоƬ֮(hu )F̓Y|r

҂µоƬֲa򣩾ֱӰоƬ_λ÷ϼӟ](mi)µоƬԏĄeȡһ(g)ͬN̖оƬQ԰һ(g)оƬȡºϵķϵa̎оƬa̎޺оƬķͿһӺࣨo(w)s|(zh)ٰь䓾W(wng)оƬҪ䓾W(wng)һϴɃ䓾W(wng)Ϳ׃һкsþƾϴ_ˢɺ䓾W(wng)оƬüƬСFװa䓾W(wng)оƬͿһӺҺһճÿһ(g)䓾W(wng)׵涼һСֺÿ(g)׃ȶ(hu )ճһ(g)a@҂ͰaoоƬ޺Ĩһc(din)ڣעͿϣоƬßL(fng)ӟ


џL(fng)СL(fng)ȡȻoaӟaȫR֮עŸo(w)c(din)IJ(hu )(hu )R@(g)оƬֲѽ(jng)ֵòas֮Ϳ԰䓾W(wng)ȡѲҪaĨ@(g)оƬaȫֲ


ٰоƬϵİɫ[RĂ(g)xͬȻҪоƬ[BGAC벿λӟһΕr(sh)gÔzӻ򼚾Vzpp|һBGAоƬоƬp΢Ƅ(dng)֮ԕ(hu )Ƅ(dng)ԭ(li)λ@(g)оƬaѽ(jng)庸һ


ۻĸQ

Qһ(g)ۻǰ}һ(g)̖ͬIJۻۻЃɷNһNǏЈ(chng)I(mi)؁(li)߀һN҂?yu)˹sɱĉȡµĶֲ

ΏһKĵȡһ(g)õIJۻ


õһ(g)вۻ۾һ²ۻıǷбоÔzӽoУԓŵBGACϼӟᣨλãӟһΕr(sh)gÔzһ²ۻ߅늽(xin)ᘣСIJѽ(jng)Ƅ(dng)f(shu)@(g)ۻõÔzӰ΄(dng)ۻԁ(li)Ƅ(dng)ͱԓۻȡ


ȡ֮QҲBGAC벿λӟFƤϱоƬһֱӟϲEһӰѲۻȡ֮ѸٰѺõIJۻȻһֱӟaڻ˲ۻͿԲˣᘱpôDz岻ϵģʴ_ȿ


עʹBGACr(sh)ϵCMOS늳һҪȡ늽ݹİһȡⱬըɇ؆(wn)}
214#
(li) l(f) 2006-11-27 20:24:25 | ֻԓ (li) ЇĴɶ
ʲô²˖|
215#
(li) l(f) 2006-11-27 20:31:47 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD
216#
(li) l(f) 2006-11-27 20:32:14 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD
217#
(li) l(f) 2006-11-27 20:32:44 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD
218#
(li) l(f) 2006-11-27 20:33:14 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD
219#
(li) l(f) 2006-11-27 20:33:56 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD
220#
(li) l(f) 2006-11-27 20:34:33 | ֻԓ (li) ЇĴɶ
Һ@ʾӿڈD

eҎt

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