Kana paine kudikanwa kwekutsiva IC muPCB Circuit Dhizaini, ngatigovane mamwe matipi kana uchitsiva IC kuti ubatsire magadziri kuve wakakwana muPCB Circication Dunhu redunhu.
1. Direct kutsiva
Direct Substution rinoreva kutsiva zvakananga kuIC
Nheyo yekutsiva ndeyekuti: Basa racho, performance index, package fomu, pini yekushandisa, pin nhamba uye kupindirana kweiyo kutsiva iC kwakafanana. Basa rimwe chetero re ic harisi kungoreva chete basa rakafanana, asiwo humwe hwekufungidzira, ndiko kuti, chidimbu chekubuda uye chekuvheneka, uye voltade ikozvino impeline inofanira kunge yakafanana. Performance indicators inotaura nezveChek's magetsi magetsi (kana mainini mafuro marara), Maximum gadziriso yekuvhiringidza, uye akasiyana chiratidzo, Substitutes ine SIMBA SIMBA RINOGONA KUFANIRA KUTENDA SING.
01
Kutsiva kweiyo mhando yeiyo ic
Kutsiva kwerudzi rumwe chete kwe ic inowanzovimbika. Paunenge uchiisa iyo yakabatanidzwa PCB dunhu, chenjera kuti urege kukanganisa munzira, neimwe nzira, iyo yakabatanidzwa PCB Dunhu rinogona kupiswa kana simba rakavhurwa. Imwe imwe chete in-line simba amplifier mawcs ane iyo yakafanana muenzaniso, basa, uye hunhu, asi kutungamira kweiyo pini kurongeka kwakasiyana. Semuenzaniso, iyo Dual-Channel Power amplifier Icla4507 ine "yakanaka" uye "madhiri ekutanga, idzo,
02
Kutsiva kwezvinhu neiyo imwe chete prefix tsamba uye nhamba dzakasiyana
Chero bedzi mapini emifananidzo yerudzi urwu rwekutsiviwa zvakafanana, iyo yemukati PCB Circuit uye ma parmetical paramende yakasiana zvishoma, uye ivo vanogona zvakare kutsiviwa zvakananga kune mumwe nemumwe. Semuenzaniso: ICLA1363 uye LA1365 anoiswa mune ruzha, iyo yekupedzisira inowedzera zener diode mukati
Kazhinji, tsamba yekutanga inoratidza mugadziri uye chikamu chePCB dunhu. Nhamba mushure mekutanga tsamba yakafanana, uye vazhinji vavo vanogona kutsiviwa zvakananga. Asi kune zvakare mashoma mashoma ekukosha. Kunyangwe iyo nhamba dzakafanana, mabasa akasiyana zvachose. Semuenzaniso, ha134 itsaniso ic, uye upc1364 is a color decing ic; Nhamba yacho makumi mana neshanu Naizvozvo, izvo zviviri hazvigone kutsiviwa zvachose. Saka isu tinofanirwa kutarisa pini pini.
Vamwe vagadziri vanosuma zvisina kufanira machipisi Zvigadzirwa izvi zvinowanzonzi nemhando dzakasiyana kana kusiyaniswa nemhando dzakasiyana. Semuenzaniso, an380 uye upc1380 inogona kutsiviwa zvakananga, uye an5620, ti5620, DG5620, etc. inogona kutsiviwa zvakananga.
2. Indeirect kutsiva
Indirect Substitution Inoreva nzira iyo IC iyo isingakwanise kutsiviwa zvakananga inzira yekugadzirisa zvishoma pani yePeriphation kana kuwedzera kana kuendesa zvinhu zvoga, etc., kuti iite iyo inotsiva IC.
Substitution Sangano: IC inoshandiswa mukutsiva inogona kuve yakasiyana neyekutanga IC nemabasa akasiyana siyana uye akasiyana matanho, asi mabasa anofanirwa kunge akafanana uye maitiro anofanirwa kunge akafanana uye maitiro anofanirwa kunge akafanana; Kuita kwemuchina wepakutanga hakufanirwe kukanganiswa mushure mekutsiva.
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Substitution yezvakasiyana mapakeji
Nekuti machipisi akafanana, asi uine akasiyana mapepa emhando, mapini ezvidzidzo zvitsva zvinoda kuiswa maererano nechimiro uye gadziriro yemapini eiyo yekutanga mudziyo. Semuenzaniso, iyo AFTPCB Circuit CA3064 uye CA306E, iyo yekutanga iCitrol Package yePlastic Package: Maitiro emukati ezvikamu izvi zvakafanana, uye anogona kubatanidzwa zvinoenderana nebasa rePIN. Dual-Row Ican7114, An7115 uye La4100, La4102 ari zvakafanana mune fomu yepakeji, uye kutungamira uye kupisa kunyungudika kwakanyatsoitika 180 degrees. Iyo fungidziro yeAn5620 Dual in-line 16-PIN Package ine kupisa sink uye tii5620 Dual in-line 18-pin package. Pin Mamwe mapipi evaviri akarongwa nenzira imwecheteyo. Batanidza iyo 9th uye 10th mapini kune pasi kuti ushandise.
02
PCB Circuit Mabasa ndiwo akafanana asi wega mubhadharo mabasa akasiyana lc kutsiva
Iko kutsiva kunogona kuitwa zvinoenderana neiyo chaiyo parameter uye mirayiridzo yerudzi rwese we ic. Semuenzaniso, iyo AGC uye vhidhiyo chiratidzo muTV ine mutsauko uripo pakati pekunaka uye usina kunaka polarity, chero bedzi iyo inverter yakabatana neyekuburitsa terminal, inogona kutsiviwa.
03
Kutsiva kweCics neiyo mapurasitiki chete asi akasiyana muPIN inoshanda
Rudzi urwu rwekutsiva runoda kuchinja iyo Peripheral PCB Dunhu uye PIN gadziriro, iyo inoda imwe ruzivo rwechokwadi, ruzivo rwakakwana, uye ruzivo rwakapfuma uye hunyanzvi.
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Mamwe tsoka dzisina chinhu hadzifanirwe kuvharwa pasina mvumo
Mamwe emapipi anotungamira mune yemukati akaenzana PCB Circuit uye iyo application yePCB haina kuiswa chiratidzo. Kana paine isina chinhu kutungamira pini, ivo havafanirwe kuverengerwa pasina mvumo. Izvi zvinotungamira mapini pane imwe nzira kana kuti speure mapini, uye dzimwe nguva ivo vanoshandiswawo sekubatana kwemukati.
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Kusanganisa kutsiva
Kusanganisa kutsiva ndiko kusanganisa iyo isina kugadziriswa PCB Circumit zvikamu zvehuwandu hwemazhinji matsime emhando imwe chete mune yakazara ic kutsiva zvisina kunaka inoshanda ic. Izvo zvinoshanda kwazvo kana iyo yekutanga ic isiri kuwanikwa. Asi zvinodikanwa kuti iyo yakanaka PCB Dunhu mukati meiyo IC yakashandiswa inofanira kunge iine interface pin.
Chinhu chakakosha kutsiva ndechekuti uzive ma parmeteral yemagetsi miviri yemaviri anodzorerwa kune mumwe nemumwe, iyo yemukati yekuenzana PCB dunhu, basa reimwe pini, uye hukama hwekubatana pakati pezvikamu zveiyo IC. Chenjera mukushanda chaiko.
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. Kana iyo simba risina simba mubatanidzwa wepakutanga PCB iri kumusoro, edza kuderedza voltage; Kana iyo voltage yakaderera, zvinoenderana nekuti iyo kutsiva IC inogona kushanda;
(4) Mushure mekutsiva, iyo quiescent inoshanda iripo yeiyo ic inofanira kuyerwa. Kana iyo iripo yakakura kwazvo kupfuura yakajairika kukosha, zvinoreva kuti PCB dunhu rinogona kunge richikumbira. Panguva ino, decoupling uye kugadzirisa kunodiwa. Kana iyo pfuma yacho yakasiyana neyekutanga, kuramba kwePistrock kupikisa kunogona kugadziriswa;
. tarisa kugona kwayo kwekutyaira;
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Tsiva IC ne discrete zvikamu
Dzimwe nguva zvakashata zvikamu zvinogona kushandiswa kutsiva chikamu chakakuvadzwa che ic kudzoreredza basa rayo. Usati watsiva, iwe unofanirwa kunzwisisa musimboti wemukati weiyo IC, iyo yakajairika voltage yePIN imwe neimwe, iyo maWorform dhigiramu uye musimboti wePCB Dunhu nePCEPHERAL Zvakare funga:
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. Kana iyo Intermediate Amplifier IC yakakuvara, kubva kune yakajairwa application circuit uye yemukati PCB dunhu, yakaumbwa neyedhiyo yepamhepo, kusarura nguva uye kuwanda kwemhepo. Nzira yekuisa chiratidzo inogona kushandiswa kuwana chikamu chakakanganisika. Kana iyo Audio Amplifier chikamu chakakuvadzwa, mashiripiti zvikamu zvinogona kushandiswa pachinzvimbo.