标题: ??????????PCB°???,??????????????????°?? [打印本页]

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作者: candence    时间: 2004-11-3 11:47     标题: ??????????PCB°???,??????????????????°??

???±????VCC ,GND??????????????????VCC?????à??,???ó???????????
[???ù±?candence??2004-11-7 8:37 PM????±à??]

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作者: wards    时间: 2004-11-3 17:47

power pin: VIA>Pad of the capacitor>pin of chip;
Digital GND: direct Via;
Analog may be different.

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作者: candence    时间: 2004-11-4 10:27

?????????????é,??????????????°?:
????????????????PIN_vcc ????VIA, PIN_vcc???ó??PIN of Chip??,(????????????????????????????????????????????à?????????????)
??????????????PIN_gnd,?±???òVIA?????(????×??????é????)
???????????????????

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作者: zing    时间: 2004-11-4 11:25

à????????í?????·????????°?????????????IC????????????IC·?????,?ù??????????·¨??±??¤??
??·¨????IC??VCC pin,??Vcc pin ??????Cap??Vcc,???ó????Cap??Vcc?òVIA????????????????IC??Vcc pin×??à2?÷??????????0.1uF????10pF?à??????????

??????????????????????????????Vcc??????????????????×??????????????ü??×??????????·???é???????????????????????í???????????ê????????

??°?????????×????·?????è???????ó?????????????á?????????·?????à?????¨???????????????????????à???è?????ò????

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作者: starrysky    时间: 2004-11-15 16:44

?????????????????????üic??vcc??????

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