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Papalua ʻaoʻao pcb papa prototype FR4 TG140 impedance mana PCB

ʻO ka wehewehe pōkole:

Mea Kumu: FR4 TG140

Mānoanoa PCB: 1.6+/-10%mm

Ka helu papa: 2L

Mānoanoa keleawe: 1/1 oz

Lapaʻau ʻili: HASL-LF

Māka Solder: ʻōmaʻomaʻo ʻōlinolino

Silkscreen: Keʻokeʻo

Kaʻina hana kūikawā : Kūlana


Huahana Huahana

Huahana Huahana

Hōʻike huahana:

Mea Kumu: FR4 TG140
Mānoanoa PCB: 1.6+/-10%mm
Ka helu papa: 2L
Mānoanoa keleawe: 1/1 oz
Lapaʻau ʻili: HASL-LF
ʻO ka mask solder: ʻōmaʻomaʻo ʻōlinolino
Silkscreen: Keʻokeʻo
Kaʻina hana kūikawā: Kūlana

Palapala noi

ʻO nā papa kaapuni me ka impedance hoʻomalu ʻia nā hiʻohiʻona penei:

1. E mālama pono i ke kaʻina hana o ka papa kaapuni, e like me ke koho ʻana i nā mea waiwai, nā uwea paʻi ʻia, ke kau ʻana o ka papa, a me nā mea ʻē aʻe, e hōʻoia i ka paʻa o ka impedance o ke kaapuni;

2. E hoʻohana i nā mea hana hoʻolālā PCB kūikawā e hōʻoia i ka hoʻokō ʻana o ka impedance i nā koi hoʻolālā;

3. Ma ka hoʻolālā PCB holoʻokoʻa a me ke alahele, e hoʻohana i ke ala pōkole loa a hoʻemi i ke kulou e hōʻoia i ka paʻa o ka impedance;

4. E ho'ēmi i ka crossover ma waena o ka laina hōʻailona a me ka laina mana a me ka laina honua, a e ho'ēmi i ka crosstalk a me ke keakea o ka laina hōʻailona;

5. E hoʻohana i ka ʻenehana impedance pili i ka laina hoʻouna hōʻailona kiʻekiʻe e hōʻoia i ka maʻemaʻe a me ka paʻa o ka hōʻailona;

6. E hoʻohana i ka ʻenehana hoʻopili interlayer e hōʻemi i ka walaʻau hui ʻana a me ka radiation electromagnetic;

7. E like me nā koi impedance like ʻole, koho i ka mānoanoa papa kūpono, ka laulā laina, ka laina laina a me ka mau dielectric;

8. E hoʻohana i kahi mea ho'āʻo kiko'ī e hana i kahi ho'āʻo impedance ma ka papa kaapuni e hōʻoia i ka hoʻokōʻana o nā palena impedance i nā koi hoʻolālā.

No ke aha e hiki ai i ka mana impedance maʻamau ke lilo i 10% deviation?

Manaʻo nui nā hoaaloha e hiki ke hoʻomalu ʻia ka impedance i 5%, a ua lohe pū wau i ka koi 2.5% impedance. ʻO ka ʻoiaʻiʻo, ʻo ka hana maʻamau impedance he 10% deviation, ʻoi aku ka paʻakikī, hiki ke hoʻokō i ka 8%, he nui nā kumu:

1, ka hoʻokaʻawale ʻana o ka mea pā ponoʻī

2. Etching deviation ma PCB hana

3. ʻO ka iation o ka kahe kahe i hana ʻia e ka lamination i ka wā o ka hana PCB

4. Ma ke kiʻekiʻe o ka wikiwiki, pono e hoʻomaopopo ka roughage o ka ʻili keleawe, PP aniani fiber hopena, a me ka hopena hoʻololi pinepine DF o ka media i ka impedance.

ʻAuhea nā papa kaapuni me nā koi impedance i hoʻohana maʻamau?

Hoʻohana pinepine ʻia nā papa kaapuni me nā koi impedance no ka hoʻouna ʻana i ka hōʻailona kiʻekiʻe, e like me ka hoʻouna ʻana i ka hōʻailona kikohoʻe kiʻekiʻe, ka hoʻouna ʻana i ka hōʻailona lekiō a me ka hoʻouna ʻana i nā hōʻailona nalu millimeter. ʻO kēia no ka mea pili ka impedance o ka papa kaapuni i ka wikiwiki o ka hoʻouna ʻana a me ke kūpaʻa o ka hōʻailona. Inā kūpono ʻole ka hoʻolālā impedance, e hoʻopilikia ia i ka maikaʻi o ka hoʻouna ʻana o ka hōʻailona a hiki i ka nalowale o ka hōʻailona. No laila, i nā manawa e koi ai i ka maikaʻi o ka hoʻouna ʻana i nā hōʻailona, ​​​​pono e hoʻohana i nā papa kaapuni me nā koi impedance.

FAQs

1.He aha ka impedance ma PCB?

Hoʻohana ka Impedance i ke kūʻē ʻana o kahi kaapuni uila ke hoʻopili ʻia ke au i ia. ʻO ia ka hui pū ʻana o ka capacitance a me ka induction o kahi kaapuni uila ma ke alapine kiʻekiʻe. Ana ʻia ka Impedance ma Ohms, e like me ke kū'ē.

2.He aha ka hopena impedance ma PCB?

ʻO kekahi mau mea e pili ana i ka mana impedance i ka wā o ka hoʻolālā PCB e pili ana i ka laulā trace, ka mānoanoa keleawe, ka mānoanoa dielectric a me ka dielectric mau.

3.He aha ka pilina ma waena o ka impedance PCB a me nā kumu?

1) He kūlike ka Er i ka waiwai impedance

2) Ua like ka mānoanoa dielectric i ka waiwai impedance

3) ʻO ka laula laina i hoʻohālikelike ʻia me ka waiwai impedance

4) ʻO ka mānoanoa keleawe i hoʻohālikelike ʻia i ka waiwai impedance

5)Pono ka laina laina me ka waiwai impedance (impedance ʻokoʻa)

6) ʻO ka mānoanoa kūʻai kūʻai kūʻai like ʻole i ka waiwai impedance

4.No ke aha he mea nui ka impedance i ka hoʻolālā PCB?

I nā noi alapine kiʻekiʻe e pili ana i ka impedance o nā traces PCB he mea nui ia i ka mālama pono ʻana i ka ʻikepili a me ka mālamalama hōʻailona. Inā ʻaʻole i kūlike ka impedance o ka ʻaoʻao PCB e hoʻopili ana i nā ʻāpana ʻelua i ka impedance ʻano o nā ʻāpana, hiki ke hoʻonui ʻia nā manawa hoʻololi i loko o ka hāmeʻa a i ʻole ke kaapuni.

5. He aha nā ʻano maʻamau o ka impedance?

Hoʻokahi hoʻopau impedance, ʻokoʻa impedance, Coplanar impedance a me Broadside Coupled Stripline


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