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40G QSFP+ ER4 Industrial 40 km

The QSFP-AQLP-31-40A is a transceiver module designed for 40km optical communication applications. The design is compliant to 40GBASE-ER4 of the IEEE P802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data. The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G694.2. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module. The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. The module operates from a single +3.3V power supply and LVCMOS/LVTTL global control signals such as Module Present, Reset, Interrupt and Low Power Mode are available with the modules. A 2-wire serial interface is available to send and receive more complex control signals and to obtain digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility. The QSFP-AQLP-31-40A is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. The module offers very high functionality and feature integration, accessible via a two-wire serial interface.

·         4 CWDM lanes MUX/DEMUX design

·         Up to 11.2Gbps per channel bandwidth

·         Aggregate bandwidth of > 40Gbps

·         Duplex LC connector

·         Compliant with 40G Ethernet IEEE802.3ba and 40GBASE-ER4 Standard

·         QSFP MSA compliant

·         APD photo-detector

·         Up to 40km transmission

·         Compliant with QDR/DDR Infiniband data rates

·         Single +3.3V power supply operating 

·         Built-in digital diagnostic functions 

·         Temperature range -40°C to 85°C 

·         RoHS Compliant Part


Absolute Maximum Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Storage Temperature

TS

-40


+85

°C


Supply Voltage

VCCT, R

-0.5


4

V


Relative Humidity

RH

0


85

%



Recommended Operating Conditions
 

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Case operating Temperature

TC

-40


+85

°C


Supply Voltage

VCCT, R

+3.13

3.3

+3.47

V


Supply Current

ICC



1000

mA


Power Dissipation

PD



3.5

W


 
    Electrical Characteristics (TOP = -40 to 85 °C, VCC = 3.13 to 3.47 Volts)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Data Rate per Channel


-

10.3125

11.2

Gbps


Power Consumption


-

2.5

3.5

W


Supply Current

Icc


0.75

1.0

A


Control I/O Voltage-High

VIH

2.0


Vcc

V


Control I/O Voltage-Low

VIL

0


0.7

V


Inter-Channel Skew

TSK



150

Ps


RESETL Duration



10


Us


RESETL De-assert time




100

ms


Power On Time




100

ms


Transmitter

Single Ended Output Voltage Tolerance


0.3


4

V

1

Common mode Voltage Tolerance


15



mV


Transmit Input Diff Voltage

VI

150


1200

mV


Transmit Input Diff Impedance

 

ZIN

85

100

115









Data Dependent Input Jitter

DDJ


0.3


UI


Receiver







Single Ended Output Voltage Tolerance

Rx Output Diff Voltage


0.3


4

V


Vo

370

600

950

mV


Rx Output Rise and Fall Voltage

Tr/Tf



35

ps

1

Total Jitter

TJ


0.3


UI


Notes:
     
1.         20 to 80% 

Optical Parameters (TOP = -40 to 85 °C, VCC = 3.0 to 3.6 Volts)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter







Wavelength Assignment

L0

1264.5

1271

1277.5

nm



L1

1284.5

1291

1297.5

nm



L2

1304.5

1311

1317.5

nm



L3

1324.5

1331

1337.5

nm


Side-mode Suppression Ratio

SMSR

30

-

-

dB


Total Average Launch Power

PT


-

8.3

dBm


Average Launch Power, each Lane


-1

-

5

dBm


TDP, each Lane

TDP



2.3

dB


Extinction Ratio

ER

5

6.0


dB


Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3}


{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}






Optical Return Loss Tolerance


-

-

20

dB


Average Launch Power OFF Transmitter, each Lane

Poff



-30

dBm


Relative Intensity Noise

Rin



-128

dB/HZ

1

Optical Return Loss Tolerance


-

-

12

dB


Receiver







Damage Threshold

THd

3



dBm

1

Average Power at Receiver Input, each Lane

R

-21


-6

dBm


Receive Electrical 3 Db Upper Cut off Frequency, each Lane




12.3

GHz


RSSI Accuracy


-2


2

dB


Receiver Reflectance

Rrx



-26

dB


Receive Electrical 3 dB upper Cutoff Frequency, each Lane




12.3

GHz


LOS De-Assert

LOSD



-25

dBm


LOS Assert

LOSA

-35



dBm


LOS Hysteresis

LOSH

0.5



dB


 Notes:
     1.         12dB Reflection.

 


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