Soo koobida alaabta
SR812ST-R waa heerkeenii ugu dambeeyay ee heerka sare ee laba-soo-saarka CATV soo-dhoweeyaha indhaha. Cod-weyneeye ka hor wuxuu qaataa-GaAs MMIC oo buuxa, cod-sameeyaha dambe wuxuu qaataa moduleka GaAs. Naqshad wareeg ah oo la hagaajiyay oo ay weheliso 15 sano ee waayo-aragnimada naqshadaynta xirfadeed, waxay ka dhigtaa qalabku inuu gaaro tusmooyinka waxqabadka wanaagsan. Xakamaynta Microprocessor, soo bandhigida dhijitaalka ah ee cabirrada, khaladka injineernimada ayaa si gaar ah u fudud. Waa qalabka ugu muhiimsan ee lagu dhisayo shabakada CATV.
Tilmaamaha Waxqabadka
- Jawaab sare tuubada beddelka sawir-qaadaha PIN.
- Naqshad wareeg ah oo la wanaajiyey, wax soo saarka habka SMT, iyo dariiqa calaamadaha la hagaajiyay ayaa ka dhigaya gudbinta signalka sawir-qaadista mid siman.
- Chip attenuation RF gaar ah, oo leh feejignaan RF wanaagsan iyo toosan siman, saxsanaan sare.
- Qalabka cod-weyneeye ee GaAs, wax soo saarka labajibbaaran ee awoodda, oo leh faa'iido sare iyo qallooc hoose.
- Hal Chip Microcomputer (SCM) qalabka kontoroolka ee shaqeynaya, LCD waxay soo bandhigtaa cabbirada, ku habboonaanta iyo hawlgalka dareenka leh, iyo waxqabadka xasilloon.
- Waxqabadka AGC heer sare ah, marka cabbirka awoodda indhaha ee wax gelinta uu yahay -9 ~+2dBm, heerka wax soo saarku isma beddelo, iyo CTB iyo CSO asal ahaan isma beddelaan.
- Interface isgaadhsiinta xogta kaydsan, waxay ku xidhmi kartaa fasalka Ⅱ maamulka shabakada jawaabaha, oo geli kara nidaamka maaraynta shabakada.
Soo-celinta soo-celinta waxay dooran kartaa qaabka dillaaca si uu si xooggan u yareeyo isku-dhafka dhawaaqa oo loo yareeyo lambarka hore ee qaataha.
SR812ST-R Laba Jiho Bannaanka 2-wax soo saarka Fiber Optical Receiver | |||||
Shayga | Unug | Qiyaasaha Farsamada | |||
Qaybta qaabilaadda indho-indheynta hore | |||||
Qiyaasaha indhaha | |||||
Helitaanka awoodda indhaha | dBm | -9 ~ +2 | |||
Waayida Soo noqoshada indhaha | dB | >45 | |||
Dhererka Mowjadda Aragga | nm | 1100 ~ 1600 | |||
Nooca Xidhiidhiyaha indhaha |
| FC/APC, SC/APC ama uu cayimay isticmaaluhu | |||
Nooca Fiber |
| Qaab kali ah | |||
XiriirintaWaxqabadka | |||||
C/N | dB | ≥ 51 (-2dBm gelinta) | |||
C/CTB | dB | ≥ 65 | Heerka soosaarka 108 dBμV 6dB oo dheellitiran | ||
C/CSO | dB | ≥ 60 | |||
Halbeegyada RF | |||||
Xaddiga Soo noqnoqda | MHz | 45 ~ 862 | 45 ~ 1003 | ||
Flatness in Band | dB | ±0.75 | ±0.75 | ||
Heerka Soo saarista | dBμV | ≥ 108 | ≥ 108 | ||
Heerka ugu badan ee soo saarida | dBμV | ≥ 114 | ≥ 112 | ||
Waxsoosaarka Soo-noqoshada Khasaaraha | dB | (45 ~ 550MHz)≥16/(550~1000MHz)≥14 | |||
Wax-soo-saarka Wax-soo-saarka | Ω | 75 | 75 | ||
Xakamaynta Elektarooniga ah ee EQ Range | dB | 0~10 | 0~10 | ||
Xakamaynta Elektarooniga ah ee ATT Range | dBμV | 0~20 | 0~20 | ||
Soo celi OpticalEhadafPfanka | |||||
Qiyaasaha indhaha | |||||
Mawjada Gudbinta indhaha | nm | 1310 ± 10, 1550 ± 10 ama uu qeexay isticmaaluhu | |||
Soo saarida Awoodda indhaha | mW | 0.5, 1, 2 | |||
Nooca Xidhiidhiyaha indhaha |
| FC/APC, SC/APC ama uu cayimay isticmaaluhu | |||
Halbeegyada RF | |||||
Xaddiga Soo noqnoqda | MHz | 5 ~ 65 (ama uu cayimay isticmaaluhu) | |||
Flatness in Band | dB | ±1 | |||
Heerka galitaanka | dBμV | 72 ~ 85 | |||
Wax-soo-saarka Wax-soo-saarka | Ω | 75 | |||
Kala duwanaanshaha firfircoon ee NPR | dB | ≥15 (NPR≥30 dB) Isticmaal laser DFB | ≥10 (NPR≥30 dB) Isticmaal FP laser | ||
Waxqabadka Guud | |||||
Supply Voltage | V | A: AC (150 ~ 265) V; B: AC (35 ~ 90) V | |||
Heerkulka shaqada | ℃ | -40 ~ 60 | |||
Heerkulka Kaydinta | ℃ | -40 ~ 65 | |||
Qoyaanka Qaraabada | % | Ugu badnaan 95% ma jiro uumi | |||
Isticmaalka | VA | ≤ 30 | |||
Cabirka | mm | 260 (L) ╳ 200 (W) ╳ 130 (H) |
SR812ST-R Labada Jiho Banaanka 2-Wax soo saarka Fiber Optical Speciver Speciver Sheet.pdf