Product Features
● Uncooled Laser Diode with MQW Structure
● InGaAs PIN-TIA Photodiode Receiver
● Reach 40 km Transmission Distance on 9/125μm SMF
● BIDI Single Mode Transceiver SFP Footprint
● LC Or SC Optical Interface Are Optional
● Compliant With SFP MSA and SFF-8472
● Digital Diagnostic Monitoring Interface
● Single +3.3V Power Supply
● CML Differential Inputs and Outputs
● LVTTL Signal Detection Output
● Compliant With ITU-T G.957
● Compliant With RoHS and Lead Free
● Metal Enclosure for Lower EMI
● Operating Case Temperature:
      Standard: 0 to +70℃
      Extend: -20 to +85℃
      Industrial: -40 to +85℃

Product Applications
● Gigabit Ethernet
● Fiber Channel
● ATM/SONET/SDH/Switch/Router
● Other Optical Transmission Systems

Absolute MaximumRatings

Parameter Symbol Min Max Unit
Storage Temperature Tst -40 +85 °C
Operating Temperature TO – 0 +70 °C
E -20 75
I -40 85
Input Voltage – GND VCC V
Power Supply Voltage VCC-VEE 0 +3.6 V
Note:Stressinexcessofmaximumabsoluteratingscancausepermanentdamagetothe module.

Recommended OperatingConditions

Parameter Symbol Min Typ Max Unit
Storage Temperature Tst -40 – +85 °C
Operating Case Temperature TC – 0 – +70 °C
E -20 – 75 °C
I –  40 – 85 °C
Power Supply Voltage VCC 3.1 3.3 3.5 V
Power Supply Current ICC – – 300 mA
Data Rate DR 0.05 1.25 1.3 Gbps

OpticalSpecification

Transmitter
Parameter Symbol Min Typ Max Unit Note
Center Wavelength 1310 DFB λC 1270 1310 1360 nm nm
1550 DFB 1480 1550 1580
Spectral Width DFB Δλ – – 1 nm –
Side Mode Suppression Ratio SMSR 30 – – dB DFB Laser
Average Optical Output Power 1310nm TX Po -3 – 2 dBm –
1550nm TX -9 -1
Extinction Ratio 1.25Gbps ER 9 – – dB
Optical Rise/Fall Time(20%-80%) for 1.25Gbps product Tr/Tf – – 0.28 ns –
Output Eye Diagram Compliant with ITU-T G.957
Receiver
Parameter Symbol Min Typ Max Unit Note
Operate Wavelength 1550 – 1480 1510 1580 nm
1310 – 1270 1310 1360 nm
Receiver Sensitivity for 1.25Gbps product RSENS -24 dBm 1
Receiver Saturation PRS -3 – – dBm 1
LOS Assert 1.25Gbps – -35 – – dBm Alarm: High-level
LOS De-Assert 1.25Gbps – – – -24 dBm
LOS Hysteresis – 0.5 – 5 dBm –
Note:1.Minimum Sensitivity and saturation levels for a27-1PRBS test pattern @1.25Gbps.

ElectricalSpecification

Transmitter
Parameter Symbol Min Typ Max Unit Note
Power Supply Current ICCT – 70 200 mA 2
Input Differential Impedance ZIN 90 100 110 Ω –
Input Swing Differential Voltage VIN 350 – 1600 mV 3
TX-Disable Voltage Disable – 2.0 – VCC V –
Enable – 0 – 0.8 V –
TX-Fault Voltage Fault – 2.0 – VCC V –
Normal – 0 – 0.8 V –
Receiver
Parameter Symbol Min Typ Max Unit Note
Power Supply Current ICCR – 70 150 mA 2
Output Swing Differential Voltage VOUT 350 – 1600 mV 4
LOS Voltage High – 2.0 – VCC V –
Low – 0 – 0.8 V –
Note:  

2. The current excludes the output load current.
3. CML input, internally AC-coupled and terminated.
4. Internally AC-coupled.

Package Diagram
Board Layout Hole Pattern

image-20.png

LC Side Interface

image-21-768x340.png

SCSide Interface

image-15-300x267.png

OrderInformation

产品型号 封装 波长(-xx) 速率(xx) 传输距离  (-xx) x 等级(x)
BYCS-B1312-40Dxx /
BYCS-B1512-40Dxx		 SFP B13=T1310/R1550 
B15=T1550/R1310		 12=1.25G 20=20km 
40=40km 
80=80km 
H2=120km		 空 不带DDM 
D 带DDM		 空 商业级 
E 扩展级 
I 工业级