400G QSFP56 DD SR8 AOC

Description
The F-tone Networks Technologies FTQD-4H-SR8-QD-Oxxx is a Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 2×200 Gigabit Ethernet Applications. This AOC is a high performance module for short-range multi-lane data communication and interconnect applications. It integrates eight data lanes in each direction with 8×26.5625GBd. Each lane can operate at 53.125Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber with FEC. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 76 contact edge type connector. The Common Management Interface Specification (CMIS) for QSFP DD modules, This module incorporates F-tone Networks Technologies proven circuit and VCSEL 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 PM4 receiver
● 8 channels 850nm VCSEL array
● 8 channels PIN photo detector array
● Internal CDR circuits on both receiver and transmitter channels
● Power consumption <10W per end
● Hot Pluggable QSFP DD form factor and Compliant with CMIS
● Maximum link length of 70m on OM3 Multimode Fiber (MMF)and 100m on OM4 MMF with FEC
● 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 802.3cd 200GBASE-SR4

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			10	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  aAmplitude	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=4E-4; PRBS31Q@26.5625GBd. 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	λc	840	850	860	nm	–
RMS spectral width	∆λ	–	–	0.6	nm	–
Average launch power, each lane	Pout	-6.5	–	4	dBm	–
Optical Modulation Amplitude(OMAouter), each lane	OMA	-4.5		3	dBm	–
Transmitter and dispersion eye closure(TDEC),each lane	TDEC			4.5	dB
Extinction Ratio	ER	3	–	–	dB	–
Average launch power of OFFtransmitter, each lane				-30	dB	–
Receiver
Centre Wavelength	λc	840	850	860	nm	–
Receiver Sensitivity in OMAout	RXsen			（-6.5，-3.4）	dBm	1
Stressed Receiver Sensitivity in OMAout				-3	dBm	1
Maximum Average power at receiver , each laneinput, each lane				4	dBm	–
Minimum Average power at receiver , each lane		-7.9			dBm
Receiver Reflectance				-12	dB	–
LOS Assert		-10			dBm	–
LOS De-Assert – OMA				-7.5	dBm	–
LOS Hysteresis		0.5			dB	–

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

Mechanical Dimensions

Ordering information

Part Number	Product Description
FTQD-4H-SR8-QD-Oxxx	QSFP DD, 2x200GBASE-SR4 AOC, 70m on OM3 Multimode Fiber (MMF)and 100m on OM4 MMF ,with DSP Power consumption <10W ,0ºC ~ +70ºC
FTQD-4H-SR8-QD-OxxxI	QSFP DD, 2x200GBASE-SR4 AOC, 70m on OM3 Multimode Fiber (MMF)and 100m on OM4 MMF ,with DSP Power consumption <10W ,-40ºC ~ +85ºC
xxx	005-5m,  020-20m,  050-50m,  100-100m

北亿纤通 | F-tone Networks

企业邮箱： sales@f-tone.com
企业手机：19081343401
企业电话：028-85255257
企业传真：028-85977702

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.