Product Features

  • Hot pluggable QSFP28 MSA form factor
  • Up to 80km reach for G.652 SMF with transport white box
  • Single +3.3V power supply
  • Temperature Range 0 to 70°C
  • Transmitter: Cooled EML 2*27.5Gbaud/s DWDM TOSA
  • Receiver: 2*27.5Gbaud/s Pin-PD ROSA  
  • 4*25G CAUI4 electrical interface
  • Integrated SFEC with high coding gain
  • PAM4 modulation format on 100GHz ITU DWDM wavelength grid compatible
  • Dual CS adaptor
  • Compatible with RoHS6

Applications

  • 100G Ethernet Metro-Access over DWDM
  • P to P Access Network

ABSOLUTE MAXIMUM RATINGS
Table 2. ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Unit

Min

Max

Storage Temperature Range

Ts

oC

-40

+85

Relative Humidity

RH

%

5

85

Power Supply Voltage

Vcc

V

-0.5

+3.6

Operating Case Temperature Range

Tc

oC

0

+70

Receiver Damage Threshold Per Lane

Pdag

dBm

+5.2

 

SPECIFICATION

Recommended Operating Conditions

Parameter

Units

MIN.

TYP.

MAX.

Notes

Recommended Operating Conditions

Operating Case Temperature

°C

0

+70

Power Supply Voltage

V

3.135

3.3

3.465

Control Input Voltage High                        

V

2

Vcc+0.3               

Control Input Voltage Low

V

-0.3

0.8

Rx Diff Data Output Load

Ω

100

Power Dissipation

W

5

Tc = 70 °C, Vcc = 3.465V, End of Life

Transceiver Electrical Specification (TP1)

Table 3. Transceiver Electrical Specification (TP1)

Parameter

Comment

Min

Typ

Max

Unit

Signaling Rate, each lane

Typ -100 ppm

25.7813

Typ +100 ppm

Gb/s

DC Common Mode Output Voltage

-350

---

2850

mV

Differential Return Loss

See template1

---

---

---

dB

Common to Differential Mode Conversion Return Loss

See template2

---

---

---

dB

Differential Termination Mismatch

At 1 MHz

---

---

10

%

Receiver Electrical Specification (TP4)

Table 4. Receiver Electrical Specification (TP4)

Parameter

Comment

Min

Typ

Max

Unit

Signaling Rate, each lane

Typ - 100 ppm

25.7813

Typ + 100 ppm

Gb/s

Common-Mode AC Output Voltage (RMS)

---

---

17.5

mV

Differential pk-pk output voltage swing

---

---

900

mVpp

Eye Width

EW15 at 10-15 probability; PRBS 29-1

0.57

---

---

UI

Eye Height Differential

EH15 at 10-15 probability;

 PRBS 29-1

228

---

---

mV

Vertical Eye Closure

---

---

5.5

dB

Differential Output Return Loss

See template1

---

---

---

dB

Common to Differential Mode Conversion Return Loss

See template2

---

---

---

dB

Differential Termination Mismatch

---

---

10

%

Transition Time (20% to 80%)

12

---

---

ps

DC Common Mode Voltage3

-350

---

2850

mV

Notes:
1. Reference IEEE P802.3bm Annex 83E, Figure 83E-7 for template
2. Reference IEEE P802.3bm Annex 83E, Figure 83E-8 for template

Transmitter Optical Specification (TP2)

Table 5. Transmitter Optical Specification (TP2)

Parameter

Units

MIN.

TYP.

MAX.

Notes

Optical output power

dBm

-1

+4

Transmitter Rate

Gbps

55.04318

55.04318*2λ

Lane center wavelength spacing

GHz

100

Center wavelength

nm

See Wavelength Table

Extinction ratio

dB

6

Side-mode suppression Ratio

dB

30

RIN OMA

dB/Hz

-132

Optical Return Loss Tolerance

dB

20

Transmitter reflectance

dB

-12

Dispersion Tolerance

ps/nm

-150

50

Residual dispersion (RD) after DCM, and at worst ONSR

Receiver Optical Specification(TP3)
Table 6. Receiver Optical Specification(TP3)

Parameter

Units

MIN.

TYP.

MAX.

Notes

Receive Rate

Gbps

55.04318

55.04318*2λ

Center Wavelength

nm

See Wavelength Table

Receiver reflectance

dB

-26

Receiver Power, each lane

dBm

-12.5

6

Required OSNR

dB

28

 Receiving Power

@0~-7dBm

Pre-FEC BER 4E-3

31

Receiving Power

@-7~-12.5dBm

RSSI Accuracy

dB

-3

3

 

MECHANICAL DRAWINGS25.3.14 2

Ordering Information
Table 1. Ordering Information

Part No

Specifications

Package

Data rate

Tx

Pout

Rx Sen.

Top

Others

FTQ2-DxxHG-PAM4-80

QSFP28

103.125Gbps

Cooled EAM DFB-LD

-1 ~ +4 dBm

-12.5 dBm @BER 4E-3

0~70oC

DDM

 

 

 

 

 

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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.