Main Title​​​​​​​​
Products
Quality first, customer first,  create high quality products in communication industry.
Products
Product List
NameDescriptionContent
40G QSFP Multimode LC Duplex CWDM4
    Publish time 2022-10-10 16:09    

40G QSFP28 Multimode LC Duplex  CWDM4 

40G QSFP Multimode LC Duplex  CWDM4

40G QSFP SWDM4  Optical Tranceiver

Multimode Duplex LC

Distance:

OM3-240Meters

OM4-350Meters

OM5-440Meters

The 40G QSFP+ SWDM4 transceiver modules are designed for use in 40G Ethernet links over duplex multimode fiber. Four channels/lanes in the 850-940nm region @ 10Gbps to transport the Ethernet signal. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA.


Applications

40G Ethernet over Duplex MMF


Feature

Compliant with QSFP+ MSA

Compliant with SWDM MSA

Compliant with SFF-8636

Compliant with IEEE 802.3ba

Hot-pluggable QSFP+ form factor

4x10Gb/s VCSEL-based  SWDM transmitter

Supports 41.2Gbps aggregate bit rate

Power dissipation<3.5W

Maximum link length of 240m on OM3 MMF and 350m on OM4 MMF

Case temperature range of 0°C to 70°C

Duplex LC receptacles

XLPPI electrical interface

RoHS complian




1. Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Units

Storage Temp Range

Ts

-40

+85

Supply Voltage

Vcc

-0.5

3.6

V

Relative Humidity

RH

15%

85%




2. Operating Conditions

Parameter

Symbol

Min

Max

Units

Case Temp-Operating

Tcase

0

70

Supply Voltage

Vcc

3.14

3.46

V

Power Consumption

P


3.5

W

Link Distance on OM3 Fiber


2

240

M

Link Distance on OM4 Fiber


2

350

M

Link Distance on OM5 Fiber


2

440

M



3. Optical Characteristics

Transmitter Parameter

Lane

Min

 Typical

Max 

Unit

Note

Signaling rate, each lane


10.3125 , 9.953±100ppm

Gb/s


Lane Wavelength Range 

Lane0
Lane1
Lane2
Lane3

844
874
904
934


858
888
918
948

nm


Difference in launch power between any two lanes




4.5

dBm


RMS Spectral width

@850nm

@880nm,910nm,940nm


Lane0

Lane1,2,3




0.53

0.59

nm


Optical Modulation Amplitude (OMA), each lane


-5.5


3

dBm


Average Launch power per Lane


-7.5


3

dBm


Launch Power Tx OMA-TDP

Lane0
Lane1
Lane2
Lane3

-6.4

-6.0

-6.5

-7.0



dBm


Transmitter and Dispersion Eye Closure

Lane0
Lane1
Lane2
Lane3



3.7
4.0
4.5
5.0

dB


Extinction Ratio 


2



dB


Optical Return Loss Tolerance 


12



dB


Average Launch Power per Lane @ TX Off State




-30

dBm


Encircled Flux


 >=86% at 19um

<=30% at 4.5um



Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3}
Hit ratio 5x10-5 hits per sample


{0.23,0.34,0.43,0.27,0.35,0.4}




Receiver Parameter

Lane

Min

 Typical

Max 

Unit

Note

Signaling rate, each lane


10.3125 , 9.953±100ppm

Gb/s


Lane Wavelength Range 

Lane0

844


858

nm


Lane1

874


888

Lane2

904


918

Lane3

934


948

Damage threshold, each lane


3.8



dBm


Average Receive Power, each lane


-12.9

-12.5

-12.2

-11.9


2.4

dBm


Receiver Power, each lane (OMA)




3

dBm


Receiver sensitivity OMA, per lane




-9.1

dB


Difference in receive power between any two lanes(OMA)




5

dB


RX_Los_Assert


-30



dBm


RX_Los_De-ASSERT 




-13

dBm


RX_Los_Hysteresis


0.5



dBm


Return reflectance




-12

dB



4. Digital Diagnostic Monitoring Specifications

Parameters

Unit

Specification

Temperature Monitor

°C

± 3  

Voltage Monitor

V

 ± 5 %

I_bias Monitor

mA

 ± 10 %

Received Power (Rx) Monitor

dB

± 3.0  

Transmit Power (Tx) Monitor

dB

 ± 3.0



5. Electrical Characteristics

Transmitter electrical input signal charactoristics(TP1)

Min

Typical

Max

Units

Conditions

Single ended input voltage tolerance

-0.3


4

V

Referred to TP1 signal common

AC common-mode input voltage tolerance

15



mV

RMS

Differential input return loss

See 86A.4.1.1

dB

10MHz to 11.1GHz

Diffrential to common-mode input return loss

10



dB

10MHz to 11.1GHz

J2 Jitter tolerance

0.17



UI


J9 Jitter tolerance

0.29



UI


Data Dependent Pulse Width Shrinkage(DDPWS) tolerance

0.07



UI



Specification values



Eye mask coordinates:
X1,X2
Y1,Y2

0.11,0.31
95,350

UI
mV

Hit Ratio=5E-5

Crosstalk calibration signal VMA

850

mV

While calibrating com-pliance signal

Crosstalk calibration signal transition times, 20% to 80%

34

ps

Receiver electrical output signal charactoristics(TP4)

Min

Typical

Max

Unit


Single ended output voltage tolerance range

-0.3


4

V

Referred to signal common

AC common-mode output voltage (RMS) 



7.5

mV


Termination mismatch at 1MHz



5

%


Differential output return loss

See 86A.4.2.1

dB

10MHz to 11.1 GHz

Common-mode output return loss

See 86A.4.2.2

dB

10MHz to 11.1 GHz

Output transition time,20% to 80%

28



ps


J2 Jitter output



0.42

UI


J9 Jitter output



0.65

UI



Specification values



Eye mask coordinates:
X1,X2
Y1,Y2


0.29,0.5
150,425

UI
mV

Hit ratio=5E-5

Crosstalk source VMA, each lane

700

mV

At TP1a

Crosstalk source transition times,20% to 80%

37

PS

At TP1a