2.5G SFP BIDI Transceiver – 40km Single Fiber LC Module

Description

Product Descriptions

Maximize your fiber infrastructure efficiency with this high-performance, cost-effective 2.5G SFP BIDI optical transceiver. Its standout feature is bidirectional data transmission over a single strand of single-mode fiber, effectively doubling your existing fiber capacity and significantly reducing cabling complexity and costs. Supporting dual data rates of 2.5 Gbps and 2.125 Gbps for versatile deployment, it delivers a reliable transmission distance of up to 40 kilometers.

This sfp bidi transceiver is the ideal solution for metropolitan area network (MAN) access, data center interconnects, and enterprise network backbones. Fully compliant with the SFP MSA and SFF-8472 standards, it guarantees broad compatibility with major network equipment. Built-in Digital Diagnostic Monitoring (DDM/DOM) enables real-time performance tracking for proactive network management. Engineered for resilience, it operates reliably in both standard commercial (0 to 70°C) and extended industrial (-40 to 85°C) temperature ranges.

SFP BIDI　Features

• Dual Data Rates: Supports both 2.5 Gbps and 2.125 Gbps transmission speeds, allowing flexible network performance.
• Bidirectional Connection: Equipped with Bi-Directional LC connectors for efficient data transfer in both directions.
• Long-Distance Communication: Capable of 40 km transmission distance over Single-Mode Fiber (SMF), ideal for long-range fiber optic networks.
• Low Power Consumption: Consumes less than 0.8W of power, ensuring energy efficiency.
• Digital Diagnostic Monitor Interface: Provides real-time monitoring and diagnostics for improved network management.
• Industry Standards Compliance: Fully compliant with SFP MSA and SFF-8472 standards for seamless interoperability.
• Enhanced Durability: Features excellent ESD protection and low EMI for reliable performance in various environments.
• Temperature Range: Available in both commercial (0°C to 70°C) and industrial (-40°C to 85°C) operating temperature options.

  Commerical:0 to 70 °C

  Industrial:-40 to 85 °C

Functional Diagram

Absolute Maximum Ratings

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver

General Operating Characteristics

Electrical Characteristics (TOP(C) = 0 to 70 ℃, TOP(I) =-40 to 85 ℃,VCC = 3.13 to 3.47 V)

.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.

SFP BIDI　Optical Characteristics (TOP(C)= 0 to 70 ℃, TOP(I) =-40 to 85 ℃,VCC = 3.13 to 3.47 V)

Notes:

1.Measured at 2.5Gb/s with PRBS 2 2^{23 – 1}NRZ test pattern.

2.Unfiltered, measured with a PRBS2^{23 – 1} test pattern @2.5Gb/s

3.Measured at 2.5Gb/s with PRBS 2^{23 – 1} NRZ test pattern for BER < 1×10^-12

Pin Defintion And Functions

Notes:

1.　When high, this output indicates a laser fault of some kind. Low indicates normal operation. And should be pulled up with a 4.7 – 10KΩ resistor on the host board.

2. TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 – 10KΩ resistor. Its states are:

  Low (0 – 0.8V): Transmitter on               (>0.8, < 2.0V): Undefined

  High (2.0V~Vcc+0.3V): Transmitter Disabled   Open: Transmitter Disabled

3.Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩ resistor on the host board. The pull-up voltage shall be between 2.0V~Vcc+0.3V.

       Mod-Def 0 has been grounded by the module to indicate that the module is present

       Mod-Def 1 is the clock line of two wire serial interface for serial ID

       Mod-Def 2 is the data line of two wire serial interface for serial ID

4.When high, this output indicates loss of signal (LOS). Low indicates normal operation.

5.RD+/-: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board.

6. TD+/-: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board.

SFP BIDI transceivers Digital Diagnostic Specifications

TheBDTRP695S1SD-40 transceivers can be used in host systems that require either internally or externally calibrated digital diagnostics.

Notes:

1.When Operating temp.=0~70 oC,the range will be min=-5,Max=+75

2. The accuracy of the Tx bias current is 10% of the actual current from the laser driver to the laser
3. Internal/ External Calibration compatible.

Typical Interface Circuit

SFP BIDI　Package Dimensions