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BA1404 se pwodwi Toyo a, opere vòltaj ran de 1 ~ 3V, kous la se soti nan FM stereo mixer a, 38KHZ osilator, FM modulation ak anplifikatè segondè-frekans monolitik sikwi entegre.
Travo (al gade Figi mwen): stereo siyal odyo ak a lè yo ogmante matche rezo a D 'konsiste de 1,2 pye, FM Stéréo nan anplifye nan mixer a, yo pwodwi yon siyal prensipal yo soti nan L a + R ak LR stereo siyal konpoze sub-siyal ki konpoze de anplifye pa tanpon a soti nan 14 pye soti (16,17 pye yo ajiste paramèt yo nan siyal la konpoze, ka kontwole balans lan kite la ak dwa); 4,5,6 PIN ekstèn eleman disrè ak osilator entèn 38KHZ kous siyal 38KHZ pa tanpon la ekipman pou de konsol ak anplifikasyon, respektivman, 1 / 2 pataj, siyal 38KHZ 19KHZ pa pataj la yo ka resevwa yon siyal pilòt soti nan 13 pye soti; 13-14 pye soti nan siyal la konpoze ak siyal la pilòt nan rezo a matche konsiste de 11 pye nan modulation a FM (9,10 pye nan pwodiksyon sub-eleman detèmine frekans lan ochilasyon ekstèn) yo pwodwi yon siyal FM, pwodiksyon an anplifye soti nan 7 pye; 2 pye pou AF a konpanse 3 pye pou pwen nan tè AF, 8 pye se koneksyon la RF kote, pye 15 pou materyèl pouvwa a pozitif. (Remak: yon vòltaj referans PIN 11 pou fasilite konpozan disrè ekstèn pou kontwole frekans osilasyon an, kote yo pa itilize li.) 7 pye pa μpc1651 final anplifye siyal pwodiksyon an.
Pwen esansyèl Pwodiksyon: ka tablo sikwi dwe itilize nan milyon dola-entansif nan enstale, yo retire pwen an kwiv depase; 13,14 pye, se sèlman valè a referans nan rezistans, paske nan valè li yo sou separasyon an stereo yo ki gen rapò, dapre sitiyasyon aktyèl la bay valè; L pou enduktans an fè varyab koki, paramèt li yo ak ki gen rapò frekans-, isit la se estabilizasyon an frekans kritik, fè atansyon; Si ou vle ekipman pou elektrisite, peye atansyon sou pouvwa a, ka aktyèl piti, disrè filtre a ap reglemante pouvwa; μpc1651 vòltaj la k ap travay se 5V, pa depase, fasil yo boule.
Rezime Eksperyans: Kòm "jounal elektwonik" BBS la gen anpil itilizatè ki egzije enfòmasyon detaye sou transmetè stereo FM a, se konsa mwen re-kolekte enfòmasyon ki enpòtan sou senp disrè, rantre, entegre eksperyans transmetè stereo FM, BA1404 + μpc1651 melanj la nan pi fasil a fè ak debug, ak estabilite frekans trè wo (relatif nan sikwi anvan BA1404 la), pouvwa transmisyon pa depase seri a legal yo.
参数 |
单位 |
测试 条件 |
最小值 |
典型 值 |
最大值 |
静 态 电 流 |
IQ (MA) |
|
3.5 |
3 |
5 |
输 入 电 阻 |
Rin (KΩ) |
f = 1KHZ |
360 |
540 |
720 |
输 入 增 益 |
Gv (dB) |
Vin = 0.5mv |
30 |
37 |
|
声 道 平 衡 |
CB (dB) |
|
|
|
2 |
混合器 输出 最大 电压 |
Vom (MVP-p) |
THD = <3% |
200 |
|
|
38KHZ泄漏 电压 |
Voo (MV) |
无 信号 时 |
|
1 |
|
导 频 输出 电压 |
Vop (MVP-p) |
无 负载 时 |
460 |
580 |
|
声道 分离 度 |
Sep (dB) |
|
25 |
45 |
|
输 入 噪 声 |
Vin (μV) |
|
|
1 |
|
高 放 输出 最大 电压 |
Vosc (MV) |
|
350 |
600 |
|
lòt pwodwi nou an:
Pwofesyonèl pakè ekipman estasyon radyo FM
|
||
|
Antre nan imèl yo ka resevwa yon sipriz
es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Afriken
sq.fmuser.org -> Albanyen
ar.fmuser.org -> Arab
hy.fmuser.org -> Armenian
az.fmuser.org -> Azerbaydjan
eu.fmuser.org -> Basque
be.fmuser.org -> Belarisyen
bg.fmuser.org -> Bulgarian
ca.fmuser.org -> Katalan
zh-CN.fmuser.org -> Chinwa (senplifye)
zh-TW.fmuser.org -> Chinwa (Tradisyonèl)
hr.fmuser.org -> Kwoasyen
cs.fmuser.org -> Czech
da.fmuser.org -> Danwa
nl.fmuser.org -> Olandè
et.fmuser.org -> Estonyen
tl.fmuser.org -> Filipino
fi.fmuser.org -> Finnish
fr.fmuser.org -> Franse
gl.fmuser.org -> Galisyen
ka.fmuser.org -> Georgian
de.fmuser.org -> Alman
el.fmuser.org -> Greek
ht.fmuser.org -> Kreyòl ayisyen
iw.fmuser.org -> ebre
hi.fmuser.org -> Hindi
hu.fmuser.org -> Hungarian
is.fmuser.org -> Icelandic
id.fmuser.org -> Endonezyen
ga.fmuser.org -> Ilandè
it.fmuser.org -> Italyen
ja.fmuser.org -> Japonè
ko.fmuser.org -> Koreyen
lv.fmuser.org -> Latvian
lt.fmuser.org -> Lithuanian
mk.fmuser.org -> Masedwan
ms.fmuser.org -> Malay
mt.fmuser.org -> Maltese
no.fmuser.org -> Norwegian
fa.fmuser.org -> Pèsik
pl.fmuser.org -> Polonè
pt.fmuser.org -> Pòtigè
ro.fmuser.org -> Romanian
ru.fmuser.org -> Ris
sr.fmuser.org -> Sèb
sk.fmuser.org -> Slovak
sl.fmuser.org -> Slovenian
es.fmuser.org -> Panyòl
sw.fmuser.org -> Swahili
sv.fmuser.org -> Syèd
th.fmuser.org -> Thai
tr.fmuser.org -> Tik
uk.fmuser.org -> Ikrenyen
ur.fmuser.org -> Oudou
vi.fmuser.org -> Vietnamese
cy.fmuser.org -> Welsh
yi.fmuser.org -> Yiddish
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