SFP-WDM-SM-0220A SFP-WDM-SM-0220B sfp Optical Module 1.25G 20KM T1310/R1550 Factory Supply
Product Features
Support ITU-T G.984.2 GPON OLT B+ application
Single fiber bi-directional data links with symmetric 2.488Gbps Tx and 1.244Gbps Rx
1490nm continuous-mode transmitter with DFB LD
1310nm burst-mode receiver with APD-TIA
wire interface for integrated digital diagnostic Monitoring
Receiver RESET, Signal Detect, RSSI function indication (RESET, RX_SD, RSSI)
SFP package with SC/UPC receptacle optical interface
Single +3.3V power supply
Operation case temperature -40~85°C for industrial and 0~70°C for commercial
RoHS6 compliance
Operating Condition
| Parameter | Unit | Min. | Typical | Max. |
| Storage Temperature | °C | -40 | | 85 |
| Operating Case Temp for C-temp | °C | 0 | | 70 |
| Operating Case Temp for I-temp | °C | -40 | | 85 |
| Operating Relative Humidity | % | 5 | | 95 |
| Power Supply Voltage | V | 3.15 | 3.3 | 3.45 |
| Supply Current | mA | | | 500 |
| Bit Rate for Tx | Gbps | 2.488 |
| Bit Rate for Rx | Gbps | 1.244 |
Characteristics All performance is specified at whole working temperature and conditions
| Parameter | Unit | Min. | Typical | Max. |
| Transmitter |
| TX Central Wavelength | nm | 1480 | 1490 | 1500 |
| Spectral Width (-20dB) | nm | | | 1 |
| Side Mode Suppression Ratio (SMSR) | dB | 30 | | |
| Mean Launched Power | dBm | 1.5 | | 5 |
| Mean Launched Power (TX Off) | dBm | | | -45 |
| Extinction Ratio | dB | 8.2 | | |
| Optical Return Loss Tolerance | dB | -12 | | |
| Transmitter and dispersion Penalty | dB | | | 1 |
| Transmitter Mask(PRBS223-1&2.488G) | Compliant With ITU-T G.984.2 |
| Receiver |
| Receive Wavelength | nm | 1290 | 1310 | 1330 |
| Sensitivity(PRBS223-1 & 1.244G,ER=10,BER<10-10) | dBm | | | -28 |
| Overload(PRBS223-1&1.244G,ER=10,BER<10-10) | dBm | -8 | | |
| Receiver Burst Mode Dynamic Range | dB | 15 | | |
| Damage Threshold for Receiver | dBm | 5 | | |
| SD Assert Level | dBm | | | -30 |
| SD De-assert Level | dBm | -45 | | |
| SD Hysteresis | dB | 0.5 | | 6 |
| WDM Filter isolation to 1550nm | dB | 38 | | |
| WDM Filter isolation to 1650nm | dB | 35 | | |
| Electrical Interface Characteristics |
| Data Input Swing Differential/TX | mV | 200 | - | 2000 |
| Data Output Swing Differential/RX | mV | 400 | | 1600 |
| Date Differential Impedance | Ω | 90 | 100 | 110 |
| LVTTL Output High | V | 2.4 | | Vcc |
| LVTTL Output Low | V | 0 | | 0.4 |
| LVTTL Input High | V | 2.0 | | Vcc+0.3 |
| LVTTL Input Low | V | 0 | | 0.8 |
| Timing Characteristics |
| Guard Time (Tg) | ns | 25.6 | | |
| Reset Pulse Width (Tr) | ns | | | 12.8 |
| Reset Delay (Trd) | ns | | | 12.8 |
| Receiver Preamble Time (Tp) | ns | | | 140 |
| SD Assert Time (TSDA) | ns | | | 100 |
| SD De-assert Time (TSDD) | ns | | | 12.8 |
| RSSI Trigger Delay (Ttd) | ns | 25 | | |
| RSSI Trigger Pulse Width (Tw) | ns | 500 | | |
| Internal I2C Delay (Twait) | us | | | 500 |
