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產品型號
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JFTSM-SFP28-25-13-20(LR)-LCD
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工廠品牌
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JFOPT嘉富
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封裝形式
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SFP28
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光口類型
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雙聯LC
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最高總速率
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25.78G
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每通道速率
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10.31Gbps
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最大傳輸距離
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20km
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||
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工作波長
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1310nm
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工作電壓
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3.3V
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光纖型號
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SMF
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纖芯尺寸
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9/125
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發射器類型
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DFB-LD
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接收器類型
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CDR
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發射功率
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-7~2dbm
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接收靈敏度
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＜9.5dBm
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數字診斷
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YES
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接收過載
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2dBm
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功耗
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<1.2W
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支持協議
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SFF-8402
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工作溫度(商業級)
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0℃~+70℃
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儲存溫度（商業級）
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-40℃~+85℃
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工作溫度(工業級)
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-40℃~+85℃
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儲存溫度（工業級）
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-40℃~+85℃
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生產線介紹
PRODUCTION LINE INTRODUCTION
JFOPT嘉富持續投入光模塊生產領域，產品覆蓋1*9、SFP、10G、25G、100G、200G、400G、800G GPON/EPON/XG/XGSPON OLT等全系列光模塊。同時為下游同行提供TOSA、ROSA、BOSA等光器件半成品解決方案。JFOPT嘉富生產線具備日產量一萬只光模塊、兩萬只光器件的能力。此外，JFOPT嘉富光模塊擁有業界領先的耐高溫、抗干擾特性，廣泛應用于計算中心、運營商、交通安防、電力設施等行業領域。
產品介紹
PRODUCT PRESENTATION
JFOPT SFP28 25G 1310nm 20km LR LC DX光模塊是一款專為雙工光通信設計的高性能解決方案，支持25.78Gbps數據傳輸速率，采用SFP+ 20-pin接口實現熱插拔功能，并通過I2C接口提供數字診斷監控；其內置雙時鐘數據恢復（CDR）電路顯著增強信號完整性，該單模光纖收發器標稱工作波長為1310nm——發射端集成符合Class 1激光安全標準（IEC 60825）的高性能1310nm DFB激光器，接收端則搭載光學封裝集成的銦鎵砷探測器前置放大器（IDP）并配合限幅后置放大器芯片，確保可靠高效的運行性能。
光模塊系列產品
TRANSCEIVER SERIES PRODUCTS
生產及檢測設備
PRODUCTION & TESTING EQUIPMENT
產品特點
FEATURES
| Single +3.3V power supply | Hot-pluggable | ||||||||
| Built-in dual CDR | Support 25.78 Gb/s data links | ||||||||
| Up to 20km on 9/125um SMF | Operating case temperature:-40~+85 | ||||||||
| Very low EMI and excellent ESD protection | Power dissipation < 1.2W |
應用范圍
APPLICATION
| 25GbE | CPRI | ||||||||
| Other optical links |
符合標準
STANDARD COMPLIANCE
絕對最大額定值
ABSOLUTE MAXIMUM RATINGS
| Parameter | Symbol | Unit | Min. | Max. | |||||
| Storage temperature range | Ts | °C | -45 | 85 | |||||
| Relative humidity | RH | % | 0 | 95 | |||||
| Input voltage | Vcc | V | 0 | 4 | |||||
建議操作條件
RECOMMENDED OPERATING CONDITIONS
| Parameter | Symbol | Unit | Min. | Typ. | Max. | ||||
| Operating case temperature range | Tc | ℃ | -45 | - | 85 | ||||
| Supply voltage | Vcc | V | 3.135 | 3.3 | 3.465 | ||||
| Bit rate | BR | Gb/s | - | 25.78125 | - | ||||
| Max supported link length | L | km | - | - | 20 | ||||
電氣端口定義
ELECTCTRICAL PORTS DEFINITION
| Parameter | Symbol | Unit | Min. | Typ. | Max. | Note | |||
| Power dissipation | - | W | - | - | 1.2 | - | |||
Transmitter |
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| Input differential impedance | RIN | Ω | - | 100 | - | - | |||
| Single ended data input swing | VIN | mVp-p | 90 | - | 450 | - | |||
| Tx_disable input voltage – low | VIL | V | -0.3 | - | 0.8 | - | |||
| Tx_disable input voltage – high | VIH | V | 2.0 | - | Vcc+0.3 | - | |||
| Tx_fault output voltage – low | VOL | V | -0.3 | - | 0.8 | - | |||
| Tx_fault output voltage – high | VOH | V | 2.0 | - | Vcc+0.3 | - | |||
Receiver |
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| Output impedance (Differential) | Zout | V | - | 100 | - | - | |||
| Rx_LOS output voltage - low | VOL | V | -0.3 | - | 0.8 | - | |||
| Rx_LOS output voltage- high | VOH | V | 0.2 | - | Vcc+0.3 | - | |||
光發射機/接收機特性
OPTICAL TRANSMITTER/RECEIVER CHARACTERISTICS
| Parameter | Symbol | Unit | Min. | Typ. | Max. | Note | |||
Transmitter |
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| Center wavelength | λ | nm | 1295 | 1310 | 1325 | - | |||
| Data rate | B | Gb/s | - | 25.78 | - | - | |||
| Output spectral width | λ(-20dB) | nm | - | - | 1 | - | |||
| Optical output power | Po | dBm | -7 | - | 2 | - | |||
| Extinction ratio | ER | dB | 3.5 | - | - | - | |||
| Transmitterand dispersion penalty | TDP | dB | - | - | 3.2 | - | |||
Receiver |
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| Operating wavelength | λ | nm | 1260 | - | 1355 | - | |||
| Overload | - | dBm | 2 | - | - | - | |||
| Receiver sensitivity (OMA) | POMA | dBm | - | - | -11.3 | - | |||
| Optical return loss | ORL | dB | - | - | -26 | - | |||
| Signal detect threshold-de-assert | SD | dBm | - | - | -14 | - | |||
| LOS hysteresis | - | dB | 0.5 | - | - | - | |||
SFP28收發器電氣焊盤布局
SFP28 TRANSCEIVER ELECTRICAL PAD LAYOUT
收發器引腳說明
TRANSCEIVER PIN DESCRIPTIONS
| Pin No. | Symbol | Logic | Description | ||||||
| 1,20 | VEET | - | Transmitter ground(common with receiver ground) | ||||||
| 2 | TX fault | LVTTL output | Transmitter fault. low normal operation, high fault indication | ||||||
| 3 | TX disable | LVTTL input | Transmitter disable. laser output disabled on high or open | ||||||
| 4 | SDA | LVTTL input/output | Module definition 2.data line for serial ID | ||||||
| 5 | SCL | LVTTL input/output | Module definition 1.clock line for serial ID | ||||||
| 6 | MOD-ABS | - | Module definition 0.grounded within the module | ||||||
| 7 | RS0 | LVTTL input | Rate select 0, optionally controls SFP28 module receiver. LVTTL logic. | ||||||
| 8 | LOS | LVTTL output | Loss of signal indication. Logic 0 indicates normal operation. | ||||||
| 9 | RS1 | LVTTL input | Rate select 1, optionally controls SFP28 module transmitter. LVTTL logic. | ||||||
| 10,11,14 | VEER | - | Receiver ground(common with transmitter ground) | ||||||
| 12 | RD- | CML output | Receiver inverted DATA out.AC coupled | ||||||
| 13 | RD+ | CML output | Receiver non-inverted DATA out.AC coupled | ||||||
| 15 | VCCR | - | Receiver power supply | ||||||
| 16 | VCCT | - | Transmitter power supply | ||||||
| 18 | TD+ | CML input | Transmitter non-inverted DATA in.AC coupled | ||||||
| 19 | TD- | CML input | Transmitter inverted DATA in.AC coupled | ||||||
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