Description
The F-tone Networks FTQD-2H-LR8xx is an Eight-Channel, Pluggable, Fiber-Optic QSFP DD LR8 for 2×100 Gigabit Ethernet Applications. This transceiver is a high performance module for data communication and interconnect applications. It integrates eight data lanes in each direction with 208Gbps bandwidth. Each lane can operate at 26Gbps up to 10km over G.652 SMF. These modules are designed to operate over singlemode fiber systems using LAN-WDM 8 wavelengths. The electrical interface uses a 76 contact edge type connector. The optical interface uses duplex LC connector. This module incorporates F-tone Networks proven circuit and Optical technology to provide reliable long life, high performance, and consistent service.

Features
● 8 channels full-duplex transceiver modules
● Transmission data rate up to 26Gbps per channel
● 8 x 26Gb/s DFB-based LAN-WDM Cooling transmitter
● 8 channels PIN ROSA
● Internal CDR circuits on both receiver and transmitter channels
● Support CDR bypass
● Low power consumption <7.5W
● Hot Pluggable QSFP DD form factor and Compliant with CMIS
● Up to 10km reach for G.652 SMF
● Duplex LC receptacles
● Built-in digital diagnostic functions
● 3.3V power supply voltage
● RoHS 6 compliant (lead free)
● Case operating temperature
     Commercial: 0 ~ +70℃
     Industrial: -40 ~ +85℃

Applications
● IEEE 802.3ba 100GBASE-LR4

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

95

%

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage

Vcc

3.13

3.3

3.47

V

OperatingCase Temperature

Tc

0

70

ºC

Data Rate Per Lane

fd

25.78125

Gbps

Humidity

Rh

5

85

%

Power Dissipation

Pm

7.5

W

Fiber Bend Radius

Rb

0.002

10

km

Electrical Specifications

Parameter

Symbol

Min

Typical

Max

Unit

Differential Input Impedance

Zin

90

100

110

ohm

Differential Output Impedance

Zout

90

100

110

ohm

Differential Input Voltage Amplitude1

ΔVin

190

700

mVp-p

Differential Output Voltage Amplitude2

ΔVout

300

850

mVp-p

Input Logic Level High

VIH

2.0

Vcc

V

Input Logic Level Low

VIL

0

0.8

V

Output Logic Level High

VOH

Vcc-0.5

Vcc

V

Output Logic Level Low

VOL

0

0.4

V

Note:

  • Differential input voltage amplitude is measured between TxnP and TxnN.
  • Differential output voltage amplitude is measured between RxnP and RxnN.

Optical Characteristics 
Table 3 - Optical Characteristics

100GBASE-LR4

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Lane Wavelength

L0

1272.55

1273.54

1274.54

nm

 

L1

1276.89

1277.89

1278.89

nm

 

L2

1281.25

1282.26

1283.27

nm

 

L3

1285.65

1286.66

1287.68

nm

 

L4

1294.53

1295.56

1296.59

nm

 

L5

1299.02

1300.05

1301.09

nm

 

L6

1303.54

1304.58

1305.63

nm

 

L7

1308.09

1309.14

1310.19

nm

 

Transmitter

SMSR

SMSR

30

dB

Total Average Launch Power

PT

10.5

dBm

Average Launch Power,

each Lane

PAVG

-4.3

4.5

dBm

OMA, each Lane

POMA

-1.3

4.5

dBm

1

Difference in Launch Power between any Two Lanes (OMA)

Ptx,diff

5

dB

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

-2.3

dBm

TDP, each Lane

TDP

2.2

dB

Extinction Ratio

ER

4

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

5.5

dBm

3

Total Average Receive Power

10.5

dBm

Average Receive Power, each Lane

-10.6

4.5

dBm

Receive Power (OMA),   each Lane

4.5

dBm

Receiver Sensitivity (OMA), each Lane

SEN

-8.6

dBm

Stressed Receiver Sensitivity (OMA),     each Lane

-6.8

dBm

4

Difference in Receive Power between any Two Lanes (OMA)

Prx,diff

5.5

dB

LOS Assert

LOSA

-18

dBm

LOS Deassert

LOSD

-15

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

1.8

dB

5

Stressed Eye J2 Jitter,  each Lane

0.3

UI

Stressed Eye J9 Jitter,  each Lane

0.47

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 = 1x10-12.
  • Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver. 

Mechanical Dimensions55

Ordering information

Part Number

Product Description

FTQD-2H-LR8

QSFP DD, 2x100GBASE-LR4, Duplex LC,up to 10km G.652 SMF,0~+70℃

FTQD-2H-LR8I

QSFP DD, 2x100GBASE-LR4, Duplex LC,up to 10km G.652 SMF,-40~+85℃

 

 

 

 

 

 

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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.