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Home Products 155M ~ 2.67Gbps SFP Optical Transceiver, 2 km – 20 km Reach

155M ~ 2.67Gbps SFP Optical Transceiver, 2 km – 20 km Reach

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 155M ~ 2.67Gbps and 2km - 20 km transmission distance with SMF or 300 m by MMF.

Up to 2.67Gb/s bi-directional data links
1310nm FP laser and PIN photodetector for 2km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:
Internal Calibration or External Calibration
Compatible with RoHS
+3.3V single power supply

Operating case temperature:
Standard :  0 to +70°C
Industrial : -40 to +85°C

Absolute Maximum Ratings

Table 1 – Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage

Vcc

-0.5

4.5

V

Storage Temperature

Ts

-40

+85

°C

Operating Humidity

–

5

85

%

Recommended Operating Conditions

Table 2 – Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit
Operating Case Temperature Standard

Tc

0

  

+70

°C
Industrial

-40

  

+85

°C
Power Supply Voltage

Vcc

3.13

3.3

3.47

V
Power Supply Current

Icc

    

300

mA
Data Rate    

2.67

  

Gbps

 

Optical and Electrical Characteristics

Table 3 – Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter
Centre Wavelength

λc

1260

1310

1360

nm

  
Spectral Width (RMS)

σ

    

4

nm

  
Average Output Power

Pout

-10

  

-3

dBm

1
Extinction Ratio

ER

9

    

dB

  
Optical Rise/Fall Time (20%~80%)

tr/tf

    

0.16

ns

  
Data Input Swing Differential

VIN

400

  

1800

mV

2
Input Differential Impedance

ZIN

90

100

110

Ω

  
TX Disable Disable  

2.0

  

Vcc

V

  
Enable  

0

  

0.8

V

  
TX Fault Fault  

2.0

  

Vcc

V

  
Normal  

0

  

0.8

V

  

Receiver
Centre Wavelength

λc

1260

  

1580

nm

  
Receiver Sensitivity      

-18

dBm

3
Receiver Overload  

-3

    

dBm

3
LOS De-Assert

LOSD

    

-20

dBm

  
LOS Assert

LOSA

-30

    

dBm

  
LOS Hysteresis  

1

  

4

dB

  
Data Output Swing Differential

Vout

370

  

1800

mV

4
LOS

High

2.0

  

Vcc

V

  

Low

    

0.8

V

  
                 

Notes:

1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @2488Mbps, BER ≤1×10-12.
4. Internally AC-coupled. 

 

Timing and Electrical

Table 4 – Timing and Electrical

Parameter

Symbol

Min

Typical

Max

Unit

Tx Disable Negate Time

t_on

    

1

ms

Tx Disable Assert Time

t_off

    

10

µs

Time To Initialize, including Reset of Tx Fault

t_init

    

300

ms

Tx Fault Assert Time

t_fault

    

100

µs

Tx Disable To Reset

t_reset

10

    

µs

LOS Assert Time

t_loss_on

    

100

µs

LOS De-assert Time

t_loss_off

    

100

µs

Serial ID Clock Rate

f_serial_clock

    

400

KHz

MOD_DEF (0:2)-High

VH

2

  

Vcc

V

MOD_DEF (0:2)-Low

VL

    

0.8

V

 

 

Diagnostics

Table 5 – Diagnostics Specification

Parameter

Range

Unit

Accuracy

Calibration
Temperature

0 to +70

°C

±3°C

Internal / External

-40 to +85
Voltage

3.0 to 3.6

V

±3%

Internal / External
Bias Current

0 to 100

mA

±10%

Internal / External
TX Power

-10 to -3

dBm

±3dB

Internal / External
RX Power

-23 to -3

dBm

±3dB

Internal / External

 

Pin Descriptions

Pin

Signal Name

Description

Plug Seq.

Notes

1

 VEET Transmitter Ground

1

  

2

 TX FAULT Transmitter Fault Indication

3

Note 1

3

 TX DISABLE Transmitter Disable

3

Note 2

4

 MOD_DEF(2) SDA Serial Data Signal

3

Note 3

5

 MOD_DEF(1) SCL Serial Clock Signal

3

Note 3

6

 MOD_DEF(0) TTL Low

3

Note 3

7

 Rate Select Not Connected

3

  

8

 LOS Loss of Signal

3

Note 4

9

 VEER Receiver ground

1

  

10

 VEER Receiver ground

1

  

11

 VEER Receiver ground

1

  

12

 RD- Inv. Received Data Out

3

Note 5

13

 RD+ Received Data Out

3

Note 5

14

 VEER Receiver ground

1

  

15

 VCCR Receiver Power Supply

2

  

16

 VCCT Transmitter Power Supply

2

  

17

 VEET Transmitter Ground

1

  

18

 TD+ Transmit Data In

3

Note 6

19

 TD- Inv. Transmit Data In

3

Note 6

20

 VEET Transmitter Ground

1

  

Notes:

Plug Seq.: Pin engagement sequence during hot plugging.

1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

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 4.7k~10kΩ resistor. Its states are:

Low (0 to 0.8V):             Transmitter on

(>0.8V, < 2.0V):             Undefined

High (2.0 to 3.465V):         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 VccT or VccR.

Mod-Def 0 is 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) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.

5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES.

6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module.

AN-UM-SFP2.67/850

850nm, 155M ~ 2.67Gbps, 300m, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring
AN-UM-SFP2.67/1310/2KM/D

1310nm, 155M ~ 2.67Gbps, 2KM, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring
AN-UM-SFP2.67/1310/20KM/D

1310nm, 155M ~ 2.67Gbps, 20KM, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring

Description

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of  2.67Gbps and 2km – 20 km transmission distance with SMF or 300 m by MMF.

The transceiver consists of three sections: a FP 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.

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