25G SFP28 Ti nṣiṣe lọwọ opitika USB JHA-SFP28-25G-AOC
Awọn ẹya ara ẹrọ
◊ Itanna ni wiwo ibamu to SFF-8431
◊ 850nm VCSEL lesa ati PIN Fọto-oluwadi
◊ Gigun ọna asopọ to pọju ti 70m lori OM3 MMF ati 100m lori OM4 MMF
◊ Awọn iṣẹ iwadii oni nọmba wa nipasẹ wiwo I2C
◊ Iwọn otutu ti n ṣiṣẹ Iṣowo: 0°C si +70°C
◊ + 3.3V nikan ipese agbara
◊ Lilo agbara kere ju 1W
◊ RoHS ni ibamu
◊ Idaabobo ọrọ igbaniwọle fun A0h ati A2h
Awọn ohun elo
◊ 25GBASE-SR àjọlò
◊ Awọn olupin, awọn iyipada, ibi ipamọ ati awọn oluyipada kaadi igbalejo
Sipesifikesonu
Idi ti o pọju-wonsi
Table1- Idi ti o pọju-wonsi
| Paramita | Aami | Min. | Aṣoju | O pọju. | Ẹyọ | Awọn akọsilẹ |
| Ipese Foliteji | Vcc3 | -0.5 | - | + 3.6 | V | |
| Ibi ipamọ otutu | Ts | -10 | - | +70 | °C | |
| Ọriniinitutu ti nṣiṣẹ | RH | +5 | - | +85 | % | 1 |
Akiyesi: 1 Ko si isunmi
Niyanju Awọn ipo Ṣiṣẹ
| Paramita | Aami | Min. | Aṣoju | O pọju. | Ẹyọ | Awọn akọsilẹ |
| Ṣiṣẹ Case otutu | TC | 0 | - | +70 | °C | |
| Agbara Ipese Foliteji | Vcc | 3.14 | 3.3 | 3.47 | V | |
| Agbara Ipese Lọwọlọwọ | Icc | - | - | 300 | mA | |
| Imukuro agbara | Pd | - | - | 1.0 | W | |
| Oṣuwọn Bit | BR | 8.5 | 25.78125 | - | Gbps | |
| Okun tẹ rediosi | Rb | 3 | - | - | cm |
Tabili2- Niyanju ọna Awọn ipo
Itanna Abuda
Tabili3- Electrical Abuda
| Paramita | Aami | Min. | Iru. | O pọju. | Awọn ẹya | Awọn akọsilẹ | ||||
| Atagba | ||||||||||
| Iyatọ Data Input Swing | Vin, PP | 200 | - | 1600 | mVPP | |||||
| Input Iyatọ Impedance | ZIN | 90 | 100 | 110 | Ω | |||||
| Tx_Aṣiṣe | Isẹ deede | VOL | 0 | - | 0.8 | V | ||||
| Aṣiṣe Atagba | VOH | 2.0 | - | VCC | V | |||||
| Tx_Pa | Isẹ deede | VIL | 0 | - | 0.8 | V | ||||
| Muu lesa ṣiṣẹ | VIH | 2.0 | - | VCC + 0.3 | V | |||||
| Olugba | ||||||||||
| Iyatọ Ọjọ Ijade | Vout | 400 | - | 800 | mV | |||||
| Imudaniloju Iyatọ Ijade jade | ZD | 90 | 100 | 110 | Ω | |||||
| Rx_LOS | Isẹ deede | VOL | 0 | - | 0.8 | V | ||||
| Padanu ifihan agbara | VoH | 2.0 | - | VCC | V | |||||
Optical Abuda
Tabili4-Opitika Abuda
| Paramita | Aami | Ẹyọ | Min | Iru | O pọju | Awọn akọsilẹ |
| Awọn abuda atagba opitika | ||||||
| Oṣuwọn Bit | BR | Gbps | 8.5 | 25.78125 | - | |
| Aarin weful Range | λc | nm | 820 | 850 | 880 | |
| Apapọ Ifilole agbaraTx_off | Poff | dBm | - | - | -45 | |
| Lọlẹ Optical Power | P0 | dBm | -6.0 | 2.4 | 1 | |
| Ipin Iparun | ER | dB | 2 | - | - | |
| Ìbú Spectral(RMS) | RMS | nm | - | - | 0.65 | |
| Awọn abuda olugba Optical | ||||||
| Oṣuwọn Bit | BR | Gbps | 8.5 | 25.78125 | ||
| Oṣuwọn aṣiṣe Bit | BER | - | - | E-12 | ||
| Ibajẹ ala | DT | dBm | 3.4 | - | - | |
| Apọju Input OpticalAgbara | PIN | dBm | 2.4 | - | - | 2 |
| Aarin weful Range | λc | nm | 820 | - | 880 | |
| Ifamọ olugba niApapọ Agbara | Sen | dBm | - | - | -5.2 | 3 |
| Los Assert | LosA | dBm | -30 | - | - | |
| Los De-Assert | LosD | dBm | - | - | -13 | |
| Los Hysteresis | LosH | dB | 0.5 |
Akiyesi:
- Sopọ si 50/125 MMF.
- Ṣe iwọn pẹlu PRBS 231-1 apẹrẹ idanwo @25.78125Gbps.BER=E-12 3. BER=1×10-12; PRBS231-1@25.78125Gbps.
Niyanju Gbalejo Board Power Ipese Circuit
olusin 1, Niyanju Gbalejo Board Power Ipese Circuit
Niyanju Interface Circuit
olusin 2, Niyanju Interface Circuit
Pin eto
olusin 3, Pin View
Tabili5-Pin Išė
Awọn itumọ
| Pin | Aami | Orukọ / Apejuwe | Awọn akọsilẹ |
| 1 | VEET | Module Atagba Ilẹ | 1 |
| 2 | TX_FAULT | Aṣiṣe Atagba Module | 2 |
| 3 | TX_DISABLE | Pa Atagba;Pa atagba lesa o wu | 3 |
| 4 | SDA | Laini Data Interface Interface 2-Wire (MOD-DEF2) | |
| 5 | SCL | 2-Wire ni wiwo Aago Ibaraẹnisọrọ Tẹlentẹle (MOD-DEF1) | |
| 6 | MOD_ABS | Module Ko si, ti a ti sopọ si VEET tabi VEER ninu module | 2 |
| 7 | RS0 | Oṣuwọn Select 0, optionally išakoso SFP + module olugba | 4 |
| 8 | RX_LOS | Ipadanu Olugba ti Itọkasi Ifihan (Ninu FC ti a ṣe apẹrẹ bi Rx_LOS ati ni Ethernet ti a ṣe apẹrẹ bi NOT Iwari ifihan) | 2 |
| 9 | RS1 | Oṣuwọn Yan 1, ni yiyan awọn idari SFP + module atagba | 4 |
| 10 | VEER | Ilẹ olugba Module | 1 |
| 11 | VEER | Ilẹ olugba Module | 1 |
| 12 | RD- | Olugba Inverted Data wu | |
| 13 | RD+ | Olugba Non-Inverted Data wu | |
| 14 | VEER | Ilẹ olugba Module | 1 |
| 15 | VCCR | Module olugba 3.3 V Ipese | |
| 16 | VCCT | Module Atagba 3.3 V Ipese | |
| 17 | VEET | Module Atagba Ilẹ | 1 |
| 18 | TD+ | Atagba Ti kii-Inverted Data Input | |
| 19 | TD- | Atagba Inverted Data Input | |
| 20 | VEET | Module Atagba Ilẹ | 1 |
Akiyesi:
- Awọn pinni ilẹ module ti wa ni sọtọ lati module irú.
- Awọn awọn pinni yio be fa up pẹlu 4.7K-10Kohms to a foliteji laarin 3.14V ati 3.46V on agbalejo ọkọ.
- PIN ti wa ni fa soke si VCCT pẹlu kan 4.7K-10KΩ resistor ninu awọn module.
- Wo SFF-8472 Rev12.2 Table 10-2.
Abojuto Specification
olusin 4, Memory Map
Mechanical Design aworan atọka
Tabili5- USB
Gigun
| USB IpariL(Ẹ̀ka: m) | Alafarada(Ẹka: cm) |
| ≤1.0 | +5/-0 |
| 1.0.L≤4.5 | +15/-0 |
| 4.5.L≤14.5 | + 30/-0 |
| 14.5 | + 2%/-0 |
Ikilo
Mimu Awọn iṣọra: Ẹrọ yii ni ifaragba si ibajẹ bi abajade isunjade elekitirotiki (ESD).
Ayika ọfẹ aimi jẹ iṣeduro gaan.Tẹle awọn itọnisọna ni ibamu si awọn ilana ESD to dara.
Aabo lesa: Ìtọjú ti njade nipasẹ awọn ẹrọ laser le lewu si oju eniyan.Yago fun ifihan oju si itankalẹ taara tabi aiṣe-taara.
