25GBASE-ER Lite SFP28 Transceiver Module (SMF, 1310nm, 40km, LC, DDM)
SFP-25G-ER Lite transceiver is SFP28 module for duplex optical data communications support 24.33Gb/s and 25.78Gb/s with CDR engaged, while, 10G ethernet optical data communication can be supported when CDR is bypassed. It is with the SFP+ 20-pin connector to allow hot plug capability. Digital diagnostics functions are available via an I2C. It has a built-in clock and data recovery (CDR). This module is designed for single-mode fiber and operates at a nominal wavelength from 1295nm to 1310nm. The transmitter section uses a 1310nm multiple quantum well DFB laser and is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC
Features
Supports 24.33Gb/s to 25.78Gb/s bit rates
Compliant to IEEE 802.3CC
Compliant to SFF-8402 for SFP28 solution
Digital Diagnostic Monitor Interface with SFF-8472
Hot-pluggable SFP+ footprint
DML laser and APD Receiver
Applicable for 40Km SMF connection
High transmission margin
Low power consumption<1.8W
Single 3.3V power supply
RoHS compliant and lead-free
SPECIFICATION
| FORM FACTOR | SFP28 | POWERBUDGET (DB) | 16 dB |
|
CONNECTOR / POLISH |
LC-Duplex PC | TRANSMIT MIN/MAX | -3 dBm / 6 dBm |
| INTERFACE | Singlemode | RECEIVER MIN/MAX | -19 dBm / -4 dBm (overload) |
| TYPE | ER | WAVELENGTH TX (TYPICAL) | 1300 nm |
| DISTANCE | 40 km | WAVELENGTH TX (RANGE) | 1295 - 1310 nm |
| TEMPERATURE RANGE | 0°C - 70°C | WAVELENGTH RX (TYPICAL) | 1300 nm |
| BANDWIDTH | 25.78 Gbit/s | WAVELENGTH RX (RANGE) | 1295 - 1325 nm |
| DIGITAL DIAGNOSTIC MANAGEMENT (DDM) | Yes, internally calibrated | LASER | EML |
| POWER CONSUMPTION | 1.5 W | RECEIVER TYPE | APD |
| CDR | TX and RX | MODULATION | NRZ |
| SGMII | No | TRANSMIT AND DISPERSION PENALTY | 4 dB |
| INBUILT FEC | No | EXTINCTION RATIO | 2.7 dB |
| PROTOCOLS | 25G Ethernet |