Description
The F-tone Networks FTQD-4H-FR8xx is an Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 400 Gigabit Ethernet Applications. This transceiver is a high performance module for 2km multi-lane data communication and interconnection applications. It integrates eight data lanes in each direction with 8x26.5625GBd. Each lane can operate at 53.125Gbps up to 2km using G.652 SMF with KP-FEC. These modules are designed to operate over single mode fiber systems using LAN-WDM 8 wavelengths. The electrical interface uses a 76 contact edge type connector. The optical interface uses duplex LC connector . The Common Management Interface Specification (CMIS) for QSFP DD modules, This module incorporates F-tone Networks Technologies proven circuit and EML technology to provide reliable long life, high performance, and consistent service.

Features
● 8 channels full-duplex transceiver modules
● Transmission data rate up to 53Gbps per channel
● 8x53Gbps PAM4 transmitter and PAM4 receiver
● 8 channels LAN-WDM 8 wavelengths EML
● 8 channels PIN photo detector
● Internal CDR circuits on both receiver and transmitter channels
● Power consumption <12.5W
● Hot Pluggable QSFP DD form factor and Compliant with CMIS 4.0
● Maximum link length of 2km G.652 SMF with KP-FEC
● Duplex LC receptacles
● Built-in digital diagnostic functions
● 3.3V power supply voltage
● RoHS compliant(lead free)
● Case operating temperature
     Commercial: 0 ~ +70℃
     Industrial: -40 ~ +85℃

Applications
● IEEE 802.3bs 400GBASE-FR8

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

Operating Case temperature

Tca

0

70

ºC

Data Rate Per Lane

fd

26.5625

GBd

Humidity

Rh

5

85

%

Power Dissipation

Pm

12.5

W

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 amplitude

ΔVin

900

mVp-p

Differential output voltage amplitude

ΔVout

900

mVp-p

Skew

Sw

300

ps

Bit Error Rate

BER

2.4E-4

-

Near-end Eye Width at 10^-6 probability(EW6)

0.265

UI

Near-end Eye Height at 10^-6 probability(EH6)

70

mV

Far-end Eye Width at 10^-6 probability(EW6)

0.20

UI

Far-end Eye Height at 10^-6 probability(EH6)

30

mV

Near-end Eye Linearity

0.85

-

Note：
1.   BER=2.4E-4; 该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。. Pre-FEC
2.  Differential input voltage amplitude is measured between TxnP and TxnN.
3.  Differential output voltage amplitude is measured between RxnP and RxnN.

Optical Characteristics 
Table 3 - Optical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc0

1272.55

1273.54

1274.54

nm

-

λc1

1276.89

1277.89

1278.89

λc2

1281.25

1282.26

1283.27

λc3

1285.65

1286.66

1287.68

λc4

1294.53

1295.56

1296.59

λc5

1299.02

1300.05

1301.09

λc6

1303.54

1304.58

1305.63

λc7

1308.09

1309.14

1310.19

Side-mode suppression ratio

SMSR

30

-

--

dB

-

Average launch power, each lane

Pout

-3.5

-

5.3

dBm

-

Optical Modulation Amplitude

(OMAouter), each lane

OMA

-0.5

5.5

dBm

-

Differecnt in launch power between two lanes(OMAouter)

OMA

4

dB

Transmitter and dispersion eye closure(TDEC),each lane

TDEC

3.1

dB

Extinction Ratio

ER

3.5

-

-

dB

-

Average launch power of OFF

transmitter, each lane

-30

dB

-

Receiver

Centre Wavelength

λc0

1272.55

1273.54

1274.54

nm

-

λc1

1276.89

1277.89

1278.89

λc2

1281.25

1282.26

1283.27

λc3

1285.65

1286.66

1287.68

λc4

1294.53

1295.56

1296.59

λc5

1299.02

1300.05

1301.09

λc6

1303.54

1304.58

1305.63

λc7

1308.09

1309.14

1310.19

Receiver Sensitivity in  OMAouter

RXsen

    

-5.3

dBm

1

Stressed Receiver Sensitivity in OMAouter

SRS

-3.1

dBm

1

Average power at receiver , each lane

input, each lane

Pin

-7.5

5.3

dBm

-

Receiver Reflectance

-26

dB

-

LOS Assert

-11

dBm

-

LOS De-Assert – OMA

-9

dBm

-

LOS Hysteresis

0.5

dB

-

Note：Measured with conformance test signal at TP3 for BER = 2.4E-4 Pre-FEC

Mechanical Dimensions63

Ordering information

Part Number

Product Description

FTQD-4H-FR8

QSFP DD, 400GBASE-FR8, 2km on Single mode Fiber (SMF),with DSP Power consumption <12.5W, Duplex LC connector,0~+70℃

FTQD-4H-FR8I

QSFP DD, 400GBASE-FR8, 2km on Single mode Fiber (SMF),with DSP Power consumption <12.5W, Duplex LC connector,-40~+85℃

 

 

 

 

 

 

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注：本产品有全国产化型号可选

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.