GAOTek SFP+ Transceiver with 10 Gb/s (40km)

This 10 Gigabit 1550nm SFP+ Transceiver is used with single mode optical fiber and with or without CDR (Clock data recovery) to reach up to 24.85 miles (40km) transmission distance




This 10 Gigabit 1550nm SFP+ Transceiver is used with single mode optical fiber and with or without CDR (Clock data recovery) to reach up to 24.85 miles (40km) transmission distance. This SFP+ (enhanced small form-factor pluggable) Transceiver has an EML (Externally Modulated Laser) type transmitter, a PIN type receiver and Preamplifier in a high-integrated optical sub-assembly. It provides a unique enhanced digital diagnostic monitoring functions .It complies SFF-8431, SFF-8472 and RoHS compliant.

Key Features:

  • 1550nm EML transmitter and PIN receiver.
  • Up to 24.85 miles (40km) transmission
  • Single 3.3V power supply
  • Compliant with SFP+ MSA with LC connector
  • Metal enclosure, for lower EMI
  • management specifications compliant with SFF 8472
  • Hot-pluggable SFP+ footprint
  • Commercial Case operating temperature range from 32°F to 158°F (0°C to +70°C)
  • Industrial Case operating temperature range from -40 °F to 185 °F (-40°C to +85°C)
  • Without CDR or with CDR supported 9.95 to 11.3Gb/s reference-free
  • Low power dissipation:1.4W power dissipation without CDR for Industrial temperature1.5W power dissipation with CDR for Industrial temperature
  • 1.3W power dissipation with CDR for Commercial temperature
  • 1.2W power dissipation without CDR for Commercial temperature.

Technical Specifications:

Protocol2-Wire Serial communication Protocol
Working RangeUp to 24.85 miles (40km)
Memory256-byte memory map in EEPROM
StandardsSFF-8431 and SFF-8472.

RoHS compliant.

Data rate10Gb/s
Fiber Optic Cable9/125um
Transmitter output optical Power-1 dBm to +3 dBm
Receiver Sensitivity-16 dBm
Receiver Input Saturation Power0 dBm
Supply Voltage3.3V
Transmitter Input Differential Impedance100Ω
Dimensions2.3in x 0.54in x 0.49in (L 58.4mm x W13.7mm x   H 12.6mm)
Relative Humidity5% to 95%
Storage Temperature-40 °F to 185 °F (-40°C to 85°C)

Case Operating Temperature

Commercial32°F to 158°F (0°C to +70°C)


Industrial-40 °F to 185 °F (-40°C to +85°C)

Additional Information:


Ideal to be used on applications such as

  • 10G SONET/SDH, OTU2/2e
  • 10GBASE-ER/EW & 10G Ethernet

Ordering Information:

Product ID MediaWavelengthTransmission DistanceTemperature RangeWith/Without CDRSupply Current
GAO-SFPP-106Single-mode fiber1550nm24.85miles (40km)Commercial

32°F to 158°F (0°C to +70°C)

Without CDR370mA
GAO-SFPP-106ASingle-mode fiber1550nm24.85miles (40km)Industrial

-40 °F to 185 °F (-40°C to +85°C)


Without CDR430mA
GAO-SFPP-106BSingle mode fiber1550nm24.85miles (40km)Commercial

32°F to 158°F (0°C to +70°C)

With CDR400mA
GAO-SFPP-106CSingle-mode fiber1550nm24.85miles (40km)Industrial

-40 °F to 185 °F (-40°C to +85°C)


With CDR460mA

 Test pattern:

  • Measured with conformance test signal for PRBS 231 -1 and BER<10-12 with data rate 10.3125Gb/s, Optical source with worst ER, Wavelength between 1530nm and 1565nm:

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

Optical source with worst ER (extended Reach)

NRZ – non-return-to-zero

  • Receiver Sensitivity is measured using operation temperature range, without air flow
  • 20 – 80 % Measured with Module Compliance Test Board and OMA test pattern.

Digital Diagnostics Functions:

  • GAOTekGAO-SFPP-106 series transceivers support the 2-wire serial communication protocol as defined in the SFP MSA1.
  • 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:

Input Differential ImpedanceRin100
Single ended data input swingVin, pp180700mV
Transmit Disable VoltageVD2.0VccV
Transmit Enable VoltageVENVeeVee+ 0.8V
Transmit Disable Assert Time10us
Differential data output swingVout,pp400800mV
Data output rise timetr28ps
Data output fall timetf28ps
LOS output high levelVLOS-H2.0VccHOSTV1
LOS output Low levelVLOS-LVeeVee+0.8V1
Power Supply RejectionPSR100mVpp


  1. Loss of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

Optical Characteristics:

Average launched PowerPO-1+3dBm
Optical Wavelengthλ153015501565nm
Optical Extinction RatioER8.2dB
Spectral Band Width(-20dB)σ1.0nm
Output Eye MaskIEEE 802.3ae requirements
Side-mode Supression ratioSMSR30dB
Transmitter OFF Output PowerPOff-30dBm
Transmitter and Dispersion PenaltyTDP2.0dB
Receiver SensitivityPSEN-16.0dBm
Wavelength Rangeλ12701610nm
Input Saturation Power (Overload)Psat0dBm
LOS AssertLOSA-30dBm
LOS De -AssertLOSD-17dBm


  1. Launched power (avg.) is power coupled into a single mode fiber with master connector. (Before of Life).

PIN Out Diagram:

PIN Descriptions:

PinSymbol Name/DescriptionNote
1VEETTransmitter Ground (Common with Receiver Ground)1
2TFaultTransmitter Fault2
3TDisTransmitter Disable.3
4SDA2-wire Serial Interface Data Line4
5SCL2-wire Serial Interface Clock Line4
6MOD_ABSModule Absent. Grounded within the module5
7RS0No connection
8LOSLoss of Signal indication. Logic 0 indicates normal operation6
9RS1Internally connect to circuit ground1
10VEERReceiver Ground (Common with Transmitter Ground)1
11VEERReceiver Ground (Common with Transmitter Ground)1
12RD-Receiver Inverted DATA out. AC coupled
13RD+Receiver Non-inverted DATA out. AC coupled
14VEERReceiver Ground (Common with transmitter Ground)1
15VCCRReceiver power Supply
16VCCTTransmitter Power supply
17VEETTransmitter Ground (Common with receiver Ground)1
18TD+Transmitter Non-Inverted DATA in. AC Coupled.
19TD-Transmitter Inverted DATA in.AC Coupled.
20VEETTransmitter Ground1


  1. Circuit ground is internally isolated from ground.
  2. TFault is an LVTTL output.
    • High output indicates a transmitter fault caused by either the TX bias current or the TX output power or the laser temperature 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 4.7k – 10 k ohms on host board to a typical 3.3V voltage.
  5. MOD_ABS pulls the line low to indicate the module is plugged in.
  6. Loss of signal is open collector output.
  • It should be pulled up with 4.7 kΩ to 10 kΩ on host board to a typical 3.3V voltage.
  • Logic 0 indicates normal operation.
  • Logic 1 indicates loss of signal.

Outline Dimensions:

HOST-Transceiver Interface Block Diagram:

Regulatory Compliance:

Laser Eye SafetyFDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2Class 1 laser product
Component RecognitionIEC/EN 60950, ULCompatible with standards
ROHS2002/95/ECCompatible with standards
Electrostatic discharge(ESD)IEC/EN 61000-4-2Compatible with standards
EMCEN61000-3Compatible with standards
Electromagnetic Interference(EMI)FCC Part 15 Class B EN 55022 Class B (CISPR 22A)Compatible with standards