Habeli lehlakore pcb boto mohlala FR4 TG140 impedance laoloa PCB
Tlhaloso ea Sehlahisoa:
| Boitsebiso ba Motheo: | FR4 TG140 |
| Botenya ba PCB: | 1.6+/-10%mm |
| Palo ea Lera: | 2L |
| Botenya ba Koporo: | 1/1 oz |
| Phekolo ea sefahleho: | HASL-LF |
| Mask ea solder: | Botala bo benyang |
| Silkscreen: | Bosoeu |
| Ts'ebetso e khethehileng: | Standard |
Kopo
Liboto tsa potoloho tse nang le impedance e laoloang li na le litšobotsi tse latelang:
1. Laola ka thata mokhoa oa ho etsa boto ea potoloho, ho kenyelletsa le khetho ea thepa, wiring e hatisitsoeng, sebaka sa lera, joalo-joalo, ho netefatsa botsitso ba potoloho;
2. Sebelisa lisebelisoa tse khethehileng tsa moralo oa PCB ho netefatsa hore impedance e kopana le litlhoko tsa moralo;
3. Sebakeng sohle sa PCB le ho tsamaisa, sebelisa tsela e khuts'oane le ho fokotsa ho kobeha ho netefatsa botsitso ba impedance;
4. Fokotsa crossover pakeng tsa mohala oa pontšo le mohala oa matla le mohala oa fatše, 'me u fokotse ho kopana le ho kena-kenana ha mohala oa pontšo;
5. Sebelisa theknoloji e ts'oanang ea impedance moleng oa phetisetso ea lebelo le phahameng ho netefatsa bohloeki le botsitso ba lets'oao;
6. Sebelisa theknoloji ea khokahanyo ea li-interlayer ho fokotsa lerata le kopanyang le mahlaseli a motlakase;
7. Ho ea ka litlhoko tse fapaneng tsa impedance, khetha botenya bo loketseng ba lera, bophara ba mela, sebaka sa mela le ho lula ha dielectric;
8. Sebelisa sesebelisoa se khethehileng sa teko ho etsa tlhahlobo ea impedance ho boto ea potoloho ho etsa bonnete ba hore litekanyetso tsa impedance li finyella litlhoko tsa moralo.
Hobaneng ha taolo e tloaelehileng ea impedance e ka ba kheloha ea 10% feela?
Metsoalle e mengata e hlile e na le tšepo ea hore impedance e ka laoloa ho 5%, mme ke bile ke utloile ka tlhokahalo ea 2.5% ea impedance.Ebile, kemiso ea taolo ea impedance ke 10% e kheloha, e thata haholoanyane, e ka fihlela 8%, ho na le mabaka a mangata:
1, ho kheloha ha thepa ea poleiti ka boeona
2. Etching kheloha nakong PCB sebetsa
3. The iation ea phallo sekhahla bakoang ke lamination nakong PCB sebetsa
4. Ka lebelo le phahameng, bokaholimo ba foil ea koporo, PP glass fiber effect, le DF frequency variation effect ea media li tlameha ho utloisisa ho se sebetse.
Hangata liboto tsa potoloho tse nang le litlhoko tsa impedance li sebelisoa hokae?
Hangata liboto tsa potoloho tse nang le litlhoko tsa ho itšireletsa li sebelisoa bakeng sa phetisetso ea mats'oao a lebelo le phahameng, joalo ka phetisetso ea mats'oao a dijithale ka lebelo le phahameng, phetiso ea maqhubu a seea-le-moea le phetiso ea maqhubu a millimeter wave.Lebaka ke hore ho thibela boto ea potoloho ho amana le lebelo la phetisetso le botsitso ba pontšo.Haeba moralo oa impedance o sa utloahale, o tla ama boleng ba phetisetso ea lets'oao esita le ho baka tahlehelo ea matšoao.Ka hona, maemong a hlokang boleng bo phahameng ba phetisetso ea matšoao, hangata hoa hlokahala ho sebelisa liboto tsa potoloho tse nang le litlhoko tsa impedance.
FAQs
Impedance e lekanya khanyetso ea potoloho ea motlakase ha ho sebelisoa motlakase ho eona.Ke motsoako oa bokhoni le ho kenngoa ha potoloho ea motlakase ka maqhubu a phahameng.Impedance e lekantsoe ka Ohms, ka mokhoa o ts'oanang le ho hanyetsa.
Lintlha tse 'maloa tse amang taolo ea impedance nakong ea moralo oa PCB li kenyelletsa bophara ba trace, botenya ba koporo, botenya ba dielectric le dielectric constant.
1) Er e bapisoa ka mokhoa o fapaneng le boleng ba impedance
2) Botenya ba dielectric bo lekana le boleng ba impedance
3).
4) Botenya ba koporo bo lekane ka tsela e fapaneng le boleng ba impedance
5) Sekheo sa mela se lekana le boleng ba impedance (phapang ea impedance)
6) Botenya ba khanyetso ea solder bo lekana ka mokhoa o fapaneng le boleng ba impedance
Lits'ebetsong tse phahameng tse tsamaellanang le ho sitisoa ha mesaletsa ea PCB ho bohlokoa ho boloka botsitso ba data le ho hlaka ha matšoao.Haeba impedance ea PCB trace e kopanyang likarolo tse peli ha e tsamaellane le impedance ea likarolo, ho ka ba le linako tse ling tse fetohang ka har'a sesebelisoa kapa potoloho.
Pherekano e le 'ngoe e felileng, Impedans e fapaneng, impedance ea Coplanar le Broadside Coupled Stripline
