1.25Gb/S SFP Fiber Optic Module TX1550nm RX1310nm Single Mode BIDI
20KM
PRODUCT DESCRIPTION
1.25Gbps SFP BIDI 20KM Optical Transceiver Module is small form factor pluggable
module for bi-directional serial optical data communications such
as STM-8, OC-24,Fiber Channel, It is SFP 20-pin connector to allow
hot plug capability. This module is designed for single mode fiber
and operates at a nominal wavelength of 1550nm.
The SFP Module compliants with SFF-8431, SFF-8432 Digital
diagnostics functions are available via a 2-wire serial interface,
as specified in SFF-8472. The fully SFP compliant form factor provides hot pluggability, easy
optical port upgrades and low EMI emission.
1.25Gbps SFP BIDI 20KM Optical Transceiver Module Small Form Factor Pluggable (SFP) transceivers are compatible with
the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The
transceiver consists of five sections: the LD driver, the limiting
amplifier, the digital diagnostic monitor, the DFB laser and the
PIN photo-detector .The module data link up to 40KM in 9/125um
single mode fiber.
Applications
Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems
PRODUCT FEATURES
SMF links up to 20km
Digital Diagnostic Monitor Function Compatible with SFF-8472
Compliant with MSA SFP Specification
Hot Pluggable,Metal enclosure, for Lower EMI
Tx1550/Rx1310, 1550nm DFB Laser, 1310nm PIN-TIA
Simplex LC Connector Interface
DDM function optional
Operating data rate up to 1.25/1.063Gbps
Single 3. 3V Power supply
Operating Case Temperature: Commerical:0 to 70 °C Industrial:-40 to
85 °C
2 years warranty
Recommended Operating Conditions
| Parameter | Symbol | Unit | Min | Typ | Max |
| Storage Temperature Range | Ts | ℃ | 0 | | 70 |
| Power Supply Voltage | Vcc | V | 3.135 | | 3.465 |
| Data Rate | | Gb/s | - | 1.25 | - |
Specification of Transmitter
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
| Average Output Power | POUT | -9 | | -3 | dBm | Note (1) |
| Extinction Ratio | ER | 8.2 | | | dB | |
| Center Wavelength | λC | 1500 | 1550 | 1580 | nm | DFB Laser |
| | | | | |
| Spectrum Bandwidth(-20dB) | σ | | | 1 | nm | |
| Differential Line Input Impedance | RIN | 90 | 100 | 110 | Ohm | |
| Output Eye Mask | Compliant with G.959(class 1 laser safety) | | Note (2) |
Note (1): Measure at 2^23-1 NRZ PRBS pattern
Note (2): Transmitter eye mask definition
Specification of Receiver
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
| Input Optical Wavelength | λIN | 1260 | 1310 | 1360 | nm | |
| Receiver Sensitivity | PIN | | | -24 | dBm | Note (1) |
| Los Of Signal Assert | PA | | | -35 | dBm | |
| Los Of Signal De-assert | PD | -28 | | | dBm | Note (2) |
| LOS Hysteresis | PA-PD | 0.5 | 2 | 6 | dB | |
| Receiver Overload | Pmax -PIN | | | -3 | dBm | |
Note (1): Measured with Light source 1310nm, ER=8.2dB; BER
=<10^-12 @PRBS=2^23-1 NRZ
Note (2): When LOS de-asserted, the RX data+/- output is High-level
(fixed)
