This SFP28 transceiver is for duplex optical data communications support up to 25.78Gb/s. It is with the SFP+ 20-pin connector to allow hot plug capability. Digital diagnostic functions are available via an I2C. It has built-in clock and data recovery (CDR). This module operates at a nominal wavelength of CWDM (1470nm~1570nm, somebody also call 1471~ 1571nm).
Features
Hot-pluggable SFP28 form factor
Supports 25G Ethernet data rate
Wavelength Range1: 1270nm-1370nm (20nm spacing) uncooled CWDM DML transmitter and PIN receiver
Wavelength Range2: 1470nm-1570nm (20nm spacing) cooled CWDM EML transmitter and APD receiver
Internal CDR circuits on both receiver and transmitter channels
Maximum power dissipation: 1.2W Range1) / 1.8W Range2)
Reach up to 10km over SMF
Duplex LC connector
Commercial operating temperature range: 0°C to 70°C
Single 3.3V power supply
RoHS compliant (lead free)
SPECIFICATION
| Form Factor | SFP28 | Max Data Rate | 25.78Gbps |
| Wavelength | 1470nm~1570nm | Max Cable Distance | 10km |
| Connector | LC duplex | Media | SMF |
| Transmitter Type | EML CWDM | Receiver Type | PIN |
| DDM/DOM | Supported | Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| TX Power | -2~6dBm | Receiver Sensitivity | <-12dBm |
| Power Consumption | 2W | Extinction Ratio | 5dB |
| Modulation Format | NRZ | CDR | TX and RX |
| Transmit and Dispersion Penalty | 3dB | Powerbudget | 10dB |
| Packaging Technology | BOX Packaging | FEC Function | Not Supported |