Description
This product is a 100Gb/s transceiver module designed for optical communication applicationscompliant to QSFP28 4WDM 40KM MSA standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM 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 LAN WDM optical signals and then converts them to 4 output channels of electrical data.
The central wavelengths of the 4 LAN WDM channels are 1295.56,1300.05,1304.58 and 1309.14 nm as members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high performance cooled LAN WDM DFB transmitters and high sensitivity APD receivers provide superior performance for 100Gigabit Ethernet applications up to 30km links without FEC and up to 40km links with FEC interconnections.

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.

Features
● 4 channels full-duplex transceiver modules
● Supports data rate up to 103.1Gb/s
● Supports QSFP28 4WDM 40km MSA
● 4 x 25Gb/s DFB-based LAN-WDM Cooling transmitter
● 4 channels APD ROSA
● Internal CDR circuits on both receiver and transmitter channels
● Low power consumption<3.8W
● Hot Pluggable QSFP form factor
● Up to 30kmreachfor G.652 SMF without FEC
● Up to 40kmreach for G.652 SMF with FEC
● Duplex LC receptacles
● Operating case temperature 0°C to +70°C
● 3.3V power supply voltage
● RoHS 6 compliant(lead free)

Applications
● IEEE 802.3ba 100GBASE ER4Links
● Client-side 100G interconnections

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage

Vcc

-0.3

3.6

V

Input Voltage

Vin

-0.3

Vcc+0.3

V

Storage Temperature

Tst

-20

85

ºC

Case Operating Temperature

Top

0

70

ºC

Humidity(non-condensing)

Rh

5

85

%

Damage Threshold, each Lane

TH

-6

dBm

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage

Vcc

3.13

3.3

3.47

V

Operating Case temperature

Tca

0

70

ºC

Data Rate Per Lane

fd

25.78125

Gbps

Humidity

Rh

5

85

%

Power Dissipation

P

3.8

W

Link Distance with G.652

D

0.002

40

km

 

Electrical Specifications

Parameter

Symbol

Min

Typical

Max

Unit

Power Consumption

P

3.5

W

Supply Current

Icc

1.06

A

Transceiver Power-on          Initialization Time

2000

ms

Transmitter(each Lane)

Single-ended Input Voltage Tolerance

-0.3

4.0

V

AC Common Mode Input Voltage Tolerance

15

mV

Differential Input Voltage

50

mVpp

Differential Input Voltage Swing

Vin

900

mVpp

Differential Input Impedance

Zin

90

100

110

Ohm

Receiver(each Lane)

Single-ended Output Voltage

-0.3

4.0

V

AC Common Mode Output Voltage

7.5

mV

Differential Output Voltage Swing

Vout

300

850

mVpp

Differential Output Impedance

Zout

90

100

110

Ohm

Note:Power-on Initialization Time is the time from when the power supply voltages reach and remain above the minimum recommended operating supply voltages to the time when the module is fully functional.

Optical Characteristics
Table 3 - Optical Characteristics

QSFP28 100GBASE-4WDM

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Lane Wavelength

L0

1294.53

1295.56

1296.59

nm

 

L1

1299.02

1300.05

1301.09

nm

 

L2

1303.54

1304.58

1305.63

nm

 

L3

1308.09

1309.14

1310.19

nm

 

Transmitter

SMSR

SMSR

30

dB

Total Average Launch Power

PT

12.5

dBm

Average Launch Power,

each Lane

PAVG

-2.5

6.5

dBm

OMA, each Lane

POMA

0.5

6.5

dBm

1

Difference in Launch Power between any Two Lanes (OMA)

Ptx,diff

3

dB

Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane

-0.5

dBm

TDP, each Lane

TDP

3.0

dB

Extinction Ratio

ER

4.5

dB

RIN20OMA

RIN

-130

dB/Hz

Optical Return Loss Tolerance

TOL

20

dB

Transmitter Reflectance

RT

-12

dB

Eye Mask coordinates:

X1, X2, X3, Y1, Y2, Y3

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

2

Average Launch Power OFF Transmitter, each Lane

Poff

-30

dBm

Receiver

Damage Threshold, each Lane

THd

-6

dBm

3

Average Receive Power, each Lane

-20.5

-7

dBm

Receive Power (OMA), each Lane

-7

dBm

Receiver Sensitivity (OMA), each Lane(BER = 5x10-5

SEN1

-18.5

dBm

Receiver Sensitivity (OMA), each Lane(BER = 1x10-12

SEN1

-15

dBm

StressedReceiver Sensitivity (OMA), each Lane(BER = 5x10-5

-16

dBm

4

Difference in Receive Power between any Two Lanes (OMA)

Prx,diff

3.6

dB

LOS Assert

LOSA

-26

dBm

LOS Deassert

LOSD

-24

dBm

LOS Hysteresis

LOSH

0.5

dB

Receiver Electrical 3 dB upper Cutoff Frequency, each Lane

Fc

31

GHz

Conditions of Stress Receiver Sensitivity Test(Note 5)

Vertical Eye Closure Penalty, each Lane

2.5

dB

5

Stressed Eye J2 Jitter, each Lane

0.33

UI

Stressed Eye J9 Jitter, each Lane

0.48

UI

Note:

  • Even if the TDP < 1 dB, the OMA min must exceed theminimum valuespecified here.
  • See Figure 4 below.
  • The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.
  • Measured with conformance test signal at receiver inputfor BER = 5x10-5.
  • Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.

Mechanical Dimensions31

Ordering information

Part Number

Product Description

FTQ2-HG-4WDM-40

QSFP28 4WDM,LAN_WDM 40km

 

 

 

 

 

 

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Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.