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1.25Gbps CWDM SFP Optical Transceiver 80km Reach

Features

  • Data-rate of 1.25Gbps operation
  • 9 CWDM DFB wavelengths laser and PIN photo detector for 80km transmission
  • Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
  • Digital Diagnostic Monitoring: Internal Calibration or External Calibration
  • Compatible with SONET OC-24-LR-1
  • Compatible with RoHS
  • +3.3V single power supply
  • Operating case temperature:
    1. Standard : 0 to +70°C

Applications

  • Gigabit Ethernet
  • Fiber Channel
  • Switch to Switch interface
  • Switched backplane applications
  • Router/Server interface
  • Other optical transmission systems
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1.25Gbps CWDM SFP Optical Transceiver, 80km Reach                                                                                               

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

λc-6.5

λc

λc+6.5

nm

 

Spectral Width (-20dB)

σ

   

1

nm

 

Side Mode Suppression Ratio

SMSR

30

   

dB

 

Average Output Power

Pout

0

 

5

dBm

1

Extinction Ratio

ER

9

   

dB

 

Optical Rise/Fall Time (20%~80%)

tr/tf

   

0.26

ps

 

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

Receiver Sensitivity

     

-28

dBm

3

Receiver Overload

 

-3

   

dBm

3

LOS De-Assert

LOSD

   

-30

dBm

3

LOS Assert

LOSA

     

dBm

3

LOS Hysteresis

 

1

 

4

dB

 

Data Output Swing Differential

Vout

370

 

1800

mV

4

LOS

High

2.0

 

Vcc

V

 
 

Low

   

0.8

V

 
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