CWDM Module
CWDM Module
CWDM Module

CWDM Module

Model NO.:
QSFP28-100G-CWDM4
Delivery:
FOB/EXW
Minimum order quantity:
1 piece
Supply Ability:
5000 piece / Day
Country of Origin:
CHINA
Stock Time:
3-5 Days
Quantity:

Features

  • Transmission data rate up to 25.78Gbps per channel
  • 4 channels full-duplex transceiver  modules
  • 4 x 26Gb/s DFB-based CWDM uncooled transmitter
  • 4 channels PIN ROSA
  • Internal CDR circuits on both receiver and transmitter channels
  • Duplex LC optical receptacle 
  • Built- in digital diagnostic functions
  • Hot Pluggable QSFP form factor
  • Up to reach 2km for G.652 SMF
  • Compliant with QSFP28 MSA with LC connector
  • Commercial operating case temperature range: -5ºC to 70ºC
  • RoHS-6 Compliant
  • Power dissipation < 3.5 W   

Applications

  • Data Center Interconnect
  • 100G CWDM4 applications
  • Infiniband EDR interconnects
  • Enterprise networking

Description

QSFP28-100G-CWDM4 transceiver module designed for optical communication applications compliant with the QSFP MSA,CWDM4 MSA and portions of IEEE P802.3bm standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of CWDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of CWDM optical signals and then converts them to 4 output channels of 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 CWDM4 MSA. The high performance Uncooled CWDM DFB transmitters and high sensitivity PIN receivers provide superior performance for 100Gigabit E thernet applications up to 2km links.

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.

Specification

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Storage Ambient Temperature

TSTG

-40

85

Operating Humidity

HO

5

95

%

Power Supply Voltage

Vcc

-0.3

4

V

Signal Input Voltage

Vcc-0.3

Vcc +0.3

V

Damage Threshold,  each Lane

TH

5.5

dBm

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Operating Case Temperature

Tc

-5

70

Power Supply Voltage

Vcc

3.135

3.3

3.465

V

Power Supply Current

Icc

1060

mA

Data Rate,each Lane

25.78125

Gbps

Link Distance with G.652

D

-

2

-

km

Optical transmitter Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Launched Power (avg.)

Pavg

-6.5

2.5

dBm

Total Output. Power

Pout

8.5

dBm

OMA, each Lane

POMA

-4

2.5

dBm

TDP, each Lane

TDP

3

dB

Wavelength Assignment

λ0

1294.53

1295.56

1296.59

nm

λ1

1299.02

1300.05

1301.09

λ2

1303.54

1304.58

1305.63

λ3

1308.09

1309.14

1310.19

Spectral Width(-20dB) 

∆λ

1

nm

Side Mode Suppression Ratio

SMSR

30

dB

Extinction Ratio

ER

3

dB

Transmitter OFF Output Power

POff

-30

dBm

Differential Line Input Impedance

RIN

-130

Ohm

Output Eye Mask definition

{X1X2X3Y1Y2Y3}

{0.310.40.450.340.380.4}

Output Eye Diagram

Compliant with IEEE802.3ae eye mask

Optical receiver Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Receiver Sensitivity

S

-10.0

dBm

1

Stressed Receiver Sensitivity

(OMA),each Lane

-7.3

dBm

Average Receive Power, each

lane

-11.5

2.5

dBm

Receive Power (OMA),

each lane

2.5

dBm

ReceiverElectrical 3 dB upper Cutoff Frequency, each Fc Lane

FC

31

GHz

Optical Power Input Overload

Pin-max

4.5

dBm

LOS

Optical De-assert

Pd

-14

dBm

Optical Assert

Pa

-16

LOS Hysteresis

LOSH

0.5

2

dB

Vertical Eye Closure Penalty

VECP

1.9

dB

Stressed Eye J2 Jitter

J2

0.33

UI

Stressed Eye J4 Jitter

J4

0.48

UI

Notes:

  • Measured with a PRBS 231-1 test pattern, @25.78Gb/s, BER<5x10-5.

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