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155Mbps CWDM SFP Optical Transceiver, 120km Reach

Features

Data-rate of 155Mbps operation

9 CWDM DFB wavelengths laser and PIN photo detector for 120km 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

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155Mbps CWDM SFP Optical Transceiver, 120km Reach                                                                                                                         

 

Applications

Gigabit Ethernet

Fiber Channel

Switch to Switch interface

Switched backplane applications

Router/Server interface

Other optical transmission systems

 

Description

The SFP transceivers are high performance, cost effective modules supporting data-rate of 155Mbps and 120km transmission distance with SMF.

The transceiver consists of three sections: an uncooled CWDM DFB 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.

 

SPT-PCXX03-120D

See table3 below for “xx” values

 

Table3 -λC Wavelength Guide

λC Wavelength Guide

Code

λC

Unit

Code

λC

Unit

45

1450

nm

55

1550

nm

47

1470

nm

57

1570

nm

49

1490

nm

59

1590

nm

51

1510

nm

61

1610

nm

53

1530

nm

 

 

 

 

Optical and Electrical Characteristics

SPT-PCXX03-120D: (CWDM and PIN, 120km Reach)

Table4 - Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

λc-6.5

λc

λc+6.5

nm

 

Spectral Width(-20dB)

∆λ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average OutputPower

Pout

0

 

5

dBm

1

Extinction Ratio

ER

10

 

 

dB

 

Jitter Generation (RMS)

 

 

 

0.01

UI

 

Jitter Generation (PK-PK)

 

 

 

0.1

UI

 

Output Optical Eye

Compliant Telcordia GR-253-CORE and ITU-TG.957

 

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

tr/tf

 

 

0.26

ns

 

Data Input Swing Differential

VIN

300

 

1860

mV

2

Input Differential Impedance

ZIN

90

100

110

Ω

 

 

TXDisable

Disable

 

2.0

 

Vcc

V

 

Enable

 

0

 

0.8

V

 

 

TXFault

Fault

 

2.0

 

Vcc

V

 

Normal

 

0

 

0.8

V

 

Receiver

Centre Wavelength

λc

1260

 

1620

nm

 

Receiver Sensitivity

 

 

 

-34

dBm

3

 

Receiver Overload

 

-10

 

 

dBm

3

 

LOS De-Assert

LOSD

 

 

-38

dBm

 

 

LOSAssert

LOSA

-45

 

 

dBm

 

 

LOS Hysteresis

 

1

 

4

dB

 

 

Data Output Swing Differential

Vout

370

 

1800

mV

4

 

 

LOS

High

2.0

 

Vcc

V

 

 

Low

0

 

0.8

V

 

 

Notes:

1.The opticalpower is launched into SMF.

2. PECL input, internallyAC-coupledand terminated.

3. Measuredwith a PRBS 223-1testpattern@155Mbps,BER≤1×10-12.

4. InternallyAC-coupled.

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