1000BASE-BX-D BiDi SFP 1490nm/1310nm 20km DOM LC SMF Transceiver
Module
Product Descriptions
Olinkphotonics’ OLSB34(43)12L-CD20, SFP-BIDI transceivers are high
performance, cost effective modules supporting dual data-rate of
1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.The
transceiver consists of three sections: a FP/DFB laser transmitter,
a PIN photodiode integrated with a trans-impedance preamplifier
(TIA) and MCU control unit. All modules satisfy class I laser
safety requirements. The transceivers are compatible with SFP
Multi-Source Agreement (MSA) and SFF-8472. For further information,
please refer to SFP MSA.
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Max. | Unit | Note |
| Supply Voltage | Vcc | -0.5 | 4.0 | V | |
| Storage Temperature | TS | -40 | 85 | °C | |
| Relative Humidity | RH | 0 | 85 | % | |
Note: Stress in excess of the maximum absolute ratings can cause
permanent damage to the transceiver.
General Operating Characteristics
| Parameter | Symbol | Min. | Typ | Max. | Unit | Note |
| Data Rate | DR | | 1.25 | | Gb/s | |
| Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V | |
| Supply Current | Icc5 | | | 220 | mA | |
| Operating Case Temp. | Tc | 0 | | 70 | °C | |
| TI | -40 | | 85 | |
Electrical Characteristics (TOP(C) = 0 to 70 ℃, TOP(I) =-40 to 85 ℃,VCC = 3.13 to 3.47 V)
| Parameter | Symbol | Min. | Typ | Max. | Unit | Note |
| Transmitter |
| Differential data input swing | VIN,PP | 120 | | 820 | mVpp | 1 |
| Tx Disable Input-High | VIH | 2.0 | | Vcc+0.3 | V | |
| Tx Disable Input-Low | VIL | 0 | | 0.8 | V | |
| Tx Fault Output-High | VOH | 2.0 | | Vcc+0.3 | V | 2 |
| Tx Fault Output-Low | VOL | 0 | | 0.8 | V | 2 |
| Input differential impedance | Rin | | 100 | | Ω | |
| Receiver |
| Differential data output swing | Vout,pp | 340 | 650 | 800 | mVpp | 3 |
| Rx LOS Output-High | VROH | 2.0 | | Vcc+0.3 | V | 2 |
| Rx LOS Output-Low | VROL | 0 | | 0.8 | V | 2 |
Notes:
1. TD+/- are internally AC coupled with 100Ω differential
termination inside the module.
2. Tx Fault and Rx LOS are open collector outputs, which should be
pulled up with 4.7k to 10kΩ resistors on the host board. Pull up
voltage between 2.0V and Vcc+0.3V.
3.RD+/- outputs are internally AC coupled, and should be terminated
with 100Ω (differential) at the user SERDES.
Product Features
● Supports 1.25Gbps/1.0625Gbps bit rates
● Bi-Directional LC connector
● Hot pluggable SFP footprint
● 1310nm FP laser and1490nm PIN photo detector
● 1490nm DFB laser and 1310nm PIN photo detector
● Low power consumption, < 0.8W
● Digital Diagnostic Monitor Interface
● Compliant with SFP MSA and SFF-8472
● Very low EMI and excellent ESD protection
● Operating case temperature:
Commerical:0 to 70 °C
Applications
● Gigabit Ethernet
● Fiber Channel
● Switch to Switch interface
● Switched backplane applications
● Router/Server interface
● Other Optical Links
