IZINCAZELO
Ama-transceiver e-SFP ayimojula esebenza kahle kakhulu, engabizi kakhulu esekela izinga ledatha le-1.25Gbps kanye nebanga lokudlulisa elingu-10KM nge-SMF.
I-transceiver inezigaba ezintathu: i-FP laser transmitter, i-PIN photodiode ehlanganiswe ne-trans-impedance preamplifier (TIA) kanye neyunithi yokulawula ye-MCU. Wonke amamojula ahlangabezana nezidingo zokuphepha kwe-laser yekilasi I.
Ama-transceiver ayahambisana ne-SFP Multi-Source Agreement (MSA) kanye ne-SFF-8472. Ukuze uthole ulwazi olwengeziwe, sicela ubheke i-SFP MSA.
Imojuli Ibhulokhi Umdwebo
Uku-oda Ulwazi
| Ingxenye Cha. | Idatha Izinga (elibonakalayo) | I-Laser | I-Fiber Uhlobo | Ibanga | Optical Isixhumi esibonakalayo | Izinga lokushisa | I-DDMI | I-Latch Umbala |
| I-SFP-GE-LX | 1.25Gbps | FP | I-SMF | 10KM | LC | 0~70℃ | Y | Okuluhlaza okwesibhakabhaka |
| I-SFP-GE-LX-E | 1.25Gbps | FP | I-SMF | 10KM | LC | -20~85℃ | Y | Okuluhlaza okwesibhakabhaka |
| I-SFP-GE-LX-I | 1.25Gbps | FP | I-SMF | 10KM | LC | -40~85℃ | Y | Okuluhlaza okwesibhakabhaka |
Okuphelele Ubuningi Izilinganiso
| Ipharamitha | Uphawu | Ubuncane | Uhlobo | Ubuningi | Iyunithi | Ireferensi. |
| I-Voltage Ephezulu Yokuphakelwa | I-Vcc | -0.5 | 3.6 | V | ||
| Izinga Lokushisa Lesitoreji | TS | -40 | 85 | °C | ||
| Umswakama Olinganiselwe - Osebenzayo | I-RHO | 5 | 85 | % | ||
| Umswakama Olinganiselwe - Indawo Yokugcina | I-RHS | 5 | 95 | % |
Kunconyiwe Ukusebenza Izimo
| Ipharamitha | Uphawu | Okungenani. | Okuvamile | Ubukhulu. | Iyunithi | Amanothi |
| Izinga Lokushisa Lokusebenza Lekesi | Phezulu | 0 | - | 70 | ℃ | Ezentengiselwano |
| -40 | 85 | Izimboni | ||||
| I-Voltage Yokunikezwa Kwamandla | I-VCC | 3.13 | 3.3 | 3.47 | V | |
| Ibanga Lokudlulisa | TD | - | - | 10 | km | Ngaphezulu kwe-SMF |
Ugesi Izici
| Ipharamitha | Uphawu | Ubuncane | Uhlobo | Ubuningi | Iyunithi | Ireferensi. |
| I-Voltage Yokunikezela | I-Vcc | 3.15 | 3.3 | 3.6 | V | |
| Ukunikezwa Kwamanje | I-Icc | 303 | mA | |||
| Umthumeli | ||||||
| Ukufakwa komehluko wokufaka | Rin | 100 | Ω | 1 | ||
| Ukushintsha kokufaka kwedatha okuphele okukodwa | Vin,pp | 250 | 1200 | mV | ||
| Dlulisa Khubaza I-Voltage | VD | I-Vcc–1.3 | I-Vcc | V | ||
| Dlulisa Vumela I-Voltage | I-VEN | Vee | I-Vee+ 0.8 | V | 2 | |
| Isikhathi Sokuqinisekisa Sokukhubaza Sokudlulisa | 10 | us | ||||
| Umamukeli | ||||||
| Ukushintshashintsha kokukhipha idatha okuphele okukodwa | Vout,pp | 250 | 800 | mV | 3 | |
| Isikhathi sokukhuphuka kokukhipha idatha | tr | 100 | 175 | ps | 4 | |
| Isikhathi sokuwa kokukhipha idatha | tf | 100 | 175 | ps | 4 | |
| Iphutha le-LOS | Iphutha le-VLOS | I-Vcc–0.5 | I-VccHOST | V | 5 | |
| I-LOS Normal | Isilinganiso se-VLOS | Vee | I-Vee+0.5 | V | 5 | |
| Ukwenqatshwa Kokunikezwa Kwamandla | I-PSR | 100 | i-mVpp | 6 | ||
Amanothi:
1. Kuxhunywe ngqo kumaphini okufaka idatha e-TX. I-AC ihlanganiswe ngemva kwalokho.
2. Noma isekethe evulekile.
3. Ukuqeda umehluko nge-100 ohms.
4. 20 – 80%
5. Ukulahleka Kwesignali kuyi-LVTTL. I-Logic 0 ikhombisa ukusebenza okuvamile; i-logic 1 ikhombisa ukuthi akukho signali etholakele.
6. Ukuzwela kwesamukeli kuhambisana nokuguqulwa kwe-sinusoidal yokunikezwa kwamandla kagesi okungu-20 Hz kuya ku-1.5 MHz kuze kufike enanini elicacisiwe elisetshenziswa ngenethiwekhi yokuhlunga yokunikezwa kwamandla enconyiwe.
Optical futhi Izici
| Ipharamitha | Uphawu | Ubuncane | Uhlobo | Ubuningi | Iyunithi | Ireferensi. |
| Umthumeli | ||||||
| I-Output Opt. Pwr (Ukuphela Kwempilo) | I-POUT | -9.0 | -3.0 | i-dBm | 1 | |
| Ubude be-Optical Wave | λ | 1270 | 1310 | 1355 | nm | |
| Ukuxhomekeka Kokushisa Kwe-Wavelength | 0.08 | 0.125 | nm/°C | |||
| Ububanzi be-Spectral (-20dB) | σ | 3.5 | nm | |||
| Isilinganiso Sokuphela Kokukhanya | ER | 10 | dB | |||
| Isilinganiso sokucindezela imodi eseceleni | I-SSRmin | 30 | dB | |||
| Isikhathi Sokuvuka/Sokuwa Esibonakalayo | tr/ tf | 100 | 160 | ps | ||
| I-RIN | I-RIN | -120 | i-dB/Hz | |||
| I-Transmitter Jitter (isiqongo kuya esiqongweni) | 100 | ps | ||||
| Umamukeli | ||||||
| Ukuzwela Okumaphakathi kwe-Rx @ Gigabit Ethernet | I-RSEN3 | -20 | i-dBm | 2 | ||
| Amandla Okufaka Aphezulu | I-PMAX | -3.0 | i-dBm | |||
| Ubude be-Optical Center Wavelength | λC | 1260 | 1310 | 1620 | nm | |
| I-LOS De -Assert | I-LOSD | -22 | i-dBm | |||
| Isiqinisekiso se-LOS | I-LOSA | -40 | i-dBm | |||
| I-LOS Hysteresis | 1.0 | dB | ||||
| Isizukulwane se-Receiver Jitter @1.25Gbps | 160 | ps | 3 | |||
Amanothi:
1. Ukuphepha kweLaser kweKlasi 1 ngokwemithethonqubo ye-FDA/CDRH kanye ne-IEC-825-1.
2. Ngesilinganiso sokuphela kwesifo esibi kakhulu. Kulinganiswe ngephethini yokuhlola ye-@PRBS=2^7-1 NRZ, @1.25Gb/s, i-BER<10-12.
3. I-Jitter engezwe yisamukeli (isiqongo kuya esiqongweni). Kulinganiswe ku--18.0dBm isilinganiso sokuzwela kwe-Rx, @PRBS=2^7-1 iphethini yokuhlola ye-NRZ.
Idijithali Ukuxilongwa
| Ipharamitha | Ibanga | Ukunemba | Iyunithi | Ukulinganisa |
| Izinga lokushisa | -40 kuya ku-85 | ±3 | ºC | Kwangaphakathi |
| I-voltage | 0 kuya ku-Vcc | ±3% | V | Kwangaphakathi |
| I-Tx Bias yamanje | 0 kuya ku-100 | ±10% | mA | Kwangaphakathi |
| Amandla Okukhipha e-Tx | -9 kuya ku-3 | ±3 | dB | Kwangaphakathi |
| Amandla Okufaka i-Rx | -20 kuya ku-3 | ±3 | dB | Kwangaphakathi |
Iphinikhodi Umdwebo
Iphinikhodi Izincazelo
| Iphinikhodi | Uphawu | Igama/Incazelo | Ireferensi. |
| 1 | V I-EET | Indawo Yokudlulisa (Ejwayelekile Nendawo Yokwamukela) | 1 |
| 2 | T Iphutha | Iphutha Lomthumeli. | 2 |
| 3 | T I-DIS | Ukukhubaza i-Transmitter. Ukukhishwa kwe-laser kukhutshaziwe uma kuvuliwe noma kuphezulu. | 3 |
| 4 | I-MOD_DEF(2) | Incazelo Yemojuli 2. Umugqa wedatha we-Serial ID. | 4 |
| 5 | I-MOD_DEF(1) | Incazelo Yemojuli 1. Umugqa wewashi we-ID Yochungechunge. | 4 |
| 6 | I-MOD_DEF(0) | Incazelo yeModule 0. Isekelwe ngaphakathi kwemodule. | 4 |
| 7 | Ukukhetha Izinga | Akukho ukuxhumana okudingekayo | |
| 8 | I-LOS | Ukulahlekelwa yinkomba yesignali. I-Logic 0 ikhombisa ukusebenza okuvamile. | 5 |
| 9 | V I-EER | Indawo Yokwamukela (Ejwayelekile Nendawo Yokudlulisa) | 1 |
| 10 | V I-EER | Indawo Yokwamukela (Ejwayelekile Nendawo Yokudlulisa) | 1 |
| 11 | V I-EER | Indawo Yokwamukela (Ejwayelekile Nendawo Yokudlulisa) | 1 |
| 12 | RD- | I-Receiver Inverted DATA iphumile. I-AC ihlanganisiwe | |
| 13 | RD+ | Umamukeli I-DATA Engaguquliwe iphumile. I-AC Ehlanganisiwe | |
| 14 | V I-EER | Indawo Yokwamukela (Ejwayelekile Nendawo Yokudlulisa) | 1 |
| 15 | V I-CCR | Ukunikezwa Kwamandla Okwamukela | |
| 16 | V I-CCT | Ukunikezwa Kwamandla Okudlulisa | |
| 17 | V I-EET | Indawo Yokudlulisa (Ejwayelekile Nendawo Yokwamukela) | 1 |
| 18 | I-TD+ | I-Transmitter Non-Inverted DATA in. I-AC Ehlanganisiwe. | |
| 19 | I-TD- | I-Transmitter Inverted DATA ku-AC Ehlanganisiwe. | |
| 20 | V I-EET | Indawo Yokudlulisa (Ejwayelekile Nendawo Yokwamukela) | 1 |
Amanothi:
1. Inhlabathi yesekethe ihlukaniswe ngaphakathi nomhlabathi we-chassis.
2. T
Iphutha
iyisiqoqi/ukukhipha amanzi okuvulekile, okufanele sidonswe phezulu nge-resistor engu-4.7k – 10k Ohms ebhodini lokusingatha uma kuhloswe ukuthi sisetshenziswe.
I-voltage yokudonsa kufanele ibe phakathi kuka-2.0V kuya ku-Vcc + 0.3V. Ukuphuma okuphezulu kubonisa iphutha lokudlulisela elibangelwa ugesi we-TX bias noma amandla okukhipha e-TX adlula imingcele ye-alamu esethiwe. Ukuphuma okuphansi kubonisa ukusebenza okuvamile. Esimweni esiphansi, umphumela udonswa uye ku-
<0.8V.
3. Ukukhishwa kwe-laser kukhutshaziwe ku-TDIS
>2.0V noma ivuliwe, ivuliwe ku-TDIS
<0.8V.
4. Kufanele idonswe phezulu nge-4.7k - 10kohms ebhodini lokusingatha ku-voltage ephakathi kuka-2.0V no-3.6V. I-MOD_DEF(0) idonsa umugqa ophansi ukukhombisa ukuthi imojuli ixhunyiwe.
5. I-LOS iwumkhiqizo ovulekile wokuqoqa. Kufanele idonswe phezulu nge-4.7k - 10 kohms ebhodini lokusingatha ku-voltage ephakathi kuka-2.0V no-3.6V. I-Logic 0 ikhombisa ukusebenza okuvamile; i-logic 1 ikhombisa ukulahleka kwesiginali.
Kunconyiwe Isixhumi esibonakalayo Isekethe