GAOTek SFP+ BIDI Transceiver SFPPBD-104, 10 Gb/s and 10km

This 10 Gigabit 1270nm and 1330nm SFP+ BIDI Transceiver is used with single mode optical fiber to reach up to 6.21 miles (10km) transmission distance.


Key Features:

    • Up to 6.21 miles (10km) transmission
    • 1270nm DFB laser and PIN receiver
    • EEPROM with Serial ID Functionality
    • Single +3.3V power supply and LVTTL logic
    • Compliant with SFP+ MSA with LC connector
    • Metal enclosure, for lower EMI
    • Power dissipation <1.2W
    • Management specifications compliant with SFF 8472
    • 2-wire interface with integrated Digital Diagnostic monitoring
    • Case operating temperature range from 23 °F to 158°F (-5°C to +70°C)

Technical Specifications:

Protocol 2-Wire Serial communication Protocol
Working Range Up to 6.21 miles (10km)
Memory 256-byte memory map in EEPROM
Standards SFF-8431 and SFF-8472, RoHS compliant, 802.3ae 10GBASE-LR.
Data rate 10Gb/s
Wavelength 1270nm,1330nm
Fiber Optic Cable 9/125um
Transmitter DFB
Receiver PIN
Connector LC
Transmitter output optical Power -6 dBm to -1 dBm

-40 dBm(Laser OFF)

Receiver Sensitivity -15 dBm
Receiver Input Saturation Power -0.5 dBm
Supply Voltage 3.3V
Transmitter Input Differential Impedance 100Ω
Dimensions 2.3in x 0.54in x 0.49in (L 58.4mm x W13.7mm x   H 12.6mm)
Relative Humidity 5% to 95%
Storage Temperature -40 °F to 185 °F (-40°C to 85°C)
Case Operating Temperature 23 °F to 158°F (-5°C to +70°C)




Additional Information:


Ideal to be used on applications such as

  • 10GBASE-BX at 10.3125 Gb/s
  • 10GBASE-BX at 9.953 Gb/s

Test Pattern:

  • Measured with a PRBS 231 -1 and BER<10-12 with data rate 10.3125Gb/s:

PRBS31 test pattern represents a pseudorandom binary sequence with a repetition period of 231 -1. The sequence is defined in IEEE STD

BER<10-12   test represents bit error rate testing provides a measurable and useful indication of the performance of the system.

  • Case operating temperature is measured without airflow.

 Ordering Information:

Product ID Media Wavelength


Transmission Distance


Temperature Range Supply Current
GAO-SFPPBD-104 Single-mode fiber 1270TX/1330 RX 6.21miles (10km) 23 °F to 158°F (-5°C to +70°C) 270 mA

Digital Diagnostics Functions:

  • GAOTek GAO-SFPPBD-104 transceiver support the 2-wire serial communication protocol as defined in the SFP MSA.
  • Additionally, GAOTek SFP+ Transceivers provide a unique enhanced digital diagnostic monitoring interface which allows real-time access to device operating parameters such as transmitter optical power, receiver optical power, transceiver temperature, transceiver supply voltage and laser bias current. It defines an alarm system and warning flags, which alerts the end users when particular operating parameters are outside of a factory set normal range.
  • Standard SFP+ Serial id provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer and other information.
  • SFP+ MSA defines a 256-byte memory map in EEPROM that is accessible over a 2 wire serial interface at the 8 bit address 1010000X (A0h).
  • The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially

Electrical characteristics:

Parameter Symbol Min Type Max Unit
Differential line input Impedance RIN 85 100 115
Differential Data Input Voltage VDT 180 700 mVp-p
Transmit Disable Voltage-High VDisH 2 Vcc+0.3 V
Transmit Disable Voltage-Low VDisL -0.3 0.8 V
Transmit Fault Output -High VFaultH 2.4 Vcc V
Transmit Fault Output-Low VFaultL -0.3 0.8 V
Differential data output Voltage VDR 300 850 mVp-p
Differential line Output Impedance ROUT 80 100 120 ohm
Receiver LOS Pull up Resistor RLOS 4.7 10 KOhm
Data Output Rise/Fall time tr/tf 38 ps
LOS Output Voltage-High VLOSH 2 Vcc V
LOS Output Voltage-Low VLOSL -0.3 0.4 V

Optical Characteristics:

Parameter Symbol Min Type Max Unit
Average Launched Power PO -6 -1 dBm
Average Launched Power(Laser Off Poff -40 dBm
Optical Modulation Amplitude OMA -3 dBm
Center Wavelength Range λC 1260 1270 1280 nm
Optical Extinction Ratio ER 3.5 dB
Spectral Width(-20dB) σ 1 nm
Output Eye Mask Compliant with IEEE 802.3ae
Side-mode Supression ratio SMSR 30 dB
Receiver Sensitivity Psen -15 dBm
Input Optical Wavelength λIN 1320 1330 1340 nm
Input Saturation Power (Overload) Psat 0.5 dBm
LOS Assert LOSA -30 dBm
LOS De -Assert LOSD -17 dBm
LOS Hysteresis 0.5 5 dB

PIN out Diagram:

PIN Descriptions:

Pin Symbol Name/Description Note
1 VEET Transmitter Ground (Common with Receiver Ground) 1
2 TFault Transmitter Fault 2
3 TDis Transmitter Disable. 3
4 SDA 2-wire Serial Interface Data Line 4
5 SCL 2-wire Serial Interface Clock Line 4
6 MOD_ABS Module Absent. Grounded within the module 5
7 RS0 Rate Select 0.  


8 LOS Loss of Signal indication. Logic 0 indicates normal operation 7
9 RS1 No connection required 1
10 VEER Receiver Ground (Common with Transmitter Ground) 1
11 VEER Receiver Ground (Common with Transmitter Ground) 1
12 RD- Receiver Inverted DATA out. AC coupled
13 RD+ Receiver Non-inverted DATA out. AC coupled
14 VEER Receiver Ground (Common with transmitter Ground) 1
15 VCCR Receiver power Supply
16 VCCT Transmitter Power supply
17 VEET Transmitter Ground (Common with receiver Ground) 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.
19 TD- Transmitter Inverted DATA in.AC Coupled.
20 VEET Transmitter Ground 1


  1. Circuit ground is internally isolated from ground.
  2. TFault is an open collector or drain output.
    • This should be pulled up with a 4.7k -10k ohms resistor on the host board if intended for use.
    • Pull up voltage should be between 2.0V to Vcc +0.3V.
    • High output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds.
    • Low output indicates normal operation. In the low state output is pulled to <0.8V
  3. Laser output disabled when it is open or TDis > 2.0V, enabled on TDis < 0.8V.
  4. Should be pulled up with 4.7kΩ to 10kΩ on host board to a voltage between 2.0V and 3.6V.
  5. MOD_ABS pulls the line low to indicate the module is plugged in.
  6. Internally pulled down per SFF-8431
  7. Loss of signal is open collector output.
  • This should be pulled up with 4.7 kΩ to 10 kΩ on host board to a voltage between 2.0V and 3.6V.
  • Logic 0 indicates normal operation.
  • Logic 1 indicates loss of signal.

Mechanical Specifications:

Improved Pluggable form factor specification Comply to SFF-8432

Host – Transceiver Interface Block Diagram:

Regulatory Compliance:

Feature Reference Performance
Laser Eye Safety FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2 Class 1 laser product
Component Recognition IEC/EN 60950, UL Compatible with standards
ROHS 2002/95/EC Compatible with standards
Electrostatic discharge(ESD) IEC/EN 61000-4-2 Compatible with standards
EMC EN61000-3 Compatible with standards
Electromagnetic Interference(EMI) FCC Part 15 Class B EN 55022 Class B (CISPR 22A) Compatible with standards


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