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EPON SFP ONU Transceiver 1000BASE-PX20

Features

  • Single Fiber Transceiver with single mode SC receptacle
  • 1310nm burst-mode 1.25G/s transmitter with FP laser
  • 1490nm continuous-mode 1.25G/s receiver with PIN-TIA
  • Complies with IEEE Stud 802.3ah™ -2004 1000BASE-PX20 
  • Digital diagnostic interface compliant with SFF-8472 Rev 9.4, Digital 
  • Diagnostic Monitoring (DDM) with external calibration
  • 3.3V Single power supply
  • LVPECL interface logic level for data input
  • CML interface logic level for data output
  • Differential line input/output impedance 100 ohm
  • LVTTL for burst signal input and signal detect output
  • Complies with RoHS 
  • Operating case temperature:
    1. Standard: 0 to +70°C

Applications

  • Gigabit Ethernet Passive Optical Network (GEPON) ONU
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EPON SFP ONU Transceiver 1000BASE-PX20                                                                                                                                  

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Data Rate

   

1.25

 

Gb/S

 

Centre Wavelength

λc

1260

1310

1360

nm

 

Spectral Width

∆λ

   

3

nm

 

Side Mode Suppression Ratio

SMSR

30

   

dB

 

Average Output Power

Pout

0

 

4

dBm

1

Extinction Ratio

ER

9

   

dB

 

Burst Enable Delay

Ton

   

32

ns

Fig.1

Burst Disable Delay

Toff

   

32

ns

Fig.1

Average Launch Power-OFF Transmitter

Poff

   

-41

dBm

 

Optical Eye Diagram

Compliant with of IEEE 802.3ah (Fig. 60-6) transmitter eye mask definition

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

tr/tf

   

260

ps

 

Data Input Swing Differential

VIN

200

 

1600

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

Data Rate

   

1.25

 

Gb/S

 

Centre Wavelength

λc

1480

 

1500

nm

 

Receiver Sensitivity

Sen

   

-26

dBm

3

Receiver Overload

Sat

-3

   

dBm

3

Receiver Reflectance

     

-12

dB

 

SignalDetectDe-Assert

SDD

-44

   

dBm

 

SignalDetectAssert

SDA

   

-27

dBm

 

SignalDetectHysteresis

SDH

0.5

 

6

dB

 

OutputDifferentialImpedance

ZIN

90

100

110

Ω

 

DataOutputSwing

Differential

Vout

400

 

1000

mV

 

SDOutput

Voltage

High

 

2.0

 

Vcc

V

 

Low

 

0

 

0.8

V

 
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