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QSFP-40G-LR4 40G QSFP+ LR4 1310nm (CWDM4) 10km LC SMF DDM Transceiver Module

  • Uncooled CWDM DFB lasers, directly modulated

  • Fiber connector: SMF LC duplex connector

  • Power dissipation < 3.5W


1 Features

 Duplex LC connector

 Hot-pluggable QSFP+ form factor

 Operating data rate up to11.3Gbps per Lane

 Up to 10km transmission

 Maximum 3.5W operation power

 Compliant with IEEE 802.3ba Compliant with SFF 8436

 Built-in Digital Diagnostic Monitoring (DDM) functions

 Complies with RoHS directive (2002/95/EC)

 Single +3.3V power supply operating

 

2 Applications

40GBASE-LR4 40G Ethernet

 

3 Optical Characteristics

 

 Transmitter Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Signal Speed per lane

Sp


10.3125


Gbps


 

 

Center Wavelength

 

 

l

1264.5

1271

1277.5

nm

Lane0

1284.5

1291

1297.5

nm

Lane1

1304.5

1311

1317.5

nm

Lane2

1324.5

1331

1337.5

nm

Lane3

Spectral Width (-20dB)

Dl

-

-

1

nm


Side Mode Suppression Ratio

SMSR

30

-

-

dB


Total Output Optical Power

Pot



8.3

dBm


Average Optical Output Power

Po

-7

-

2.3

dBm


Optical Modulation   Amplitude,

Each Lane

OMA

-4


3.5

dBm


Extinction Ratio

Er

3.5

-

-

dB


Differential Input Impedance

-

80

100

120

Ω


Differential Data Input Swing

VINPP

120


1000

mV


 

 Receiver Characteristics

 

Parameter

 

Symbol

 

Min.

 

Typ.

 

Max.

 

Units

 

Notes

 

 

Wavelength of Operation

 

 

l

1264.5

1271

1277.5

nm

Lane0

1284.5

1291

1297.5

nm

Lane1

1304.5

1311

1317.5

nm

Lane2

1324.5

1331

1337.5

nm

Lane3

Optical Input Power, each lane

Pin

-13.7

-

2.3

dBm

 

4.4.1

Damage Threshold

Pmax

-

-

3.3

dBm

Receiver Sensitivity (OMA), each Lane

Rxsen



-11.5

dBm

Differential Data Output Swing

VOUTPP

350


800

mV


Note4.4.1: Measured with 10.3125Gbps, BER=1x10-12

 

 Digital Diagnostic Monitoring Characteristics

Parameter

Symbol

Range

Accuracy

Transceiver Case

Temperature

T

Measured transceiver case temperature over

specified operating range

±3°C

 

Supply Voltage

Vcc

Internally measured transceiver supply

voltage ,3.0~3.6V

±3%

TX Bias Current

Id

Measured TX Bias current in uA

±10%

TX Output Power

Po

Measured TX Output Power in dBm Over the

specified output power range

±3dB

Received Optical Power

Pi

Measured RX Received Power in dBm Over the

specified input power range

±3dB

 


4 Pin Definitions

 Pin Diagram



image.png

 

 

 Pin Descriptions

Pin#

Logic

Name

Function

Notes

1


GND

Ground


2

CML-I

Tx2n

Transmitter Inverted Data Input


3

CML-I

Tx2p

Transmitter Non-Inverted Data output


4


GND

Ground


5

CML-I

Tx4n

Transmitter Inverted Data Input


6

CML-I

Tx4p

Transmitter Non-Inverted Data output


7


GND

Ground


8

LVTLL-I

ModSelL

Module Select


9

LVTLL-I

ResetL

Module Reset


10


VccRx

+3.3V Power Supply Receiver




Pin#

Logic

Name

Function

31

LVTTL-I

LPMode

Low Power Mode

32


GND

Ground

33

CML-I

Tx3p

Transmitter Non-Inverted Data Input

34

CML-I

Tx3n

Transmitter Inverted Data Output

35


GND

Ground

36

CML-I

Tx1p

Transmitter Non-Inverted Data Input

37

CML-I

Tx1n

Transmitter Inverted Data Output

38


GND

Ground

 

5 Ordering Information

Part Number

Operating Case Temperature

RoHS Compliant

HD-QSFP+/40G-LR4

0 ~ 70 °C

RoHS-6

HD-QSFP+/40G-LR4-I

-40 ~ 85 °C

RoHS-6

6 Document History

Version

Change Description

Changed by

Date

VER A

Initial Release

Wang Xin 

01/15/2021


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