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400G OSFP SR4 MM MPO12 Optical Transceiver IB

Features

OSFP Serial Optical Interface

4x100G PAM4 retimed 400GAUI-4 electrical interface
Active Optical cable
4 channel VCSEL arrays and 4 channels PIN photo detector arrays
Maximum link length of 60m on OM3 or 100m on OM4

OSFP MSA Compliant

Hot Pluggable OSFP form factor
Compliant to OSFP Module Specification Rev 5.0
Compliant with CMIS 5.2

Support Protocol

Compliant with IEEE 802.3db
Compliant to IEEE 802.3ck

Low Power Consumption

Less than 8W in temperature range of 0 to 70℃

Applications

400GBASE-SR4 400G Ethernet
Data center

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产品详细信息

400G OSFP SR4 Specification

NVIDIA Single port transceiver

400G,1xNDR, OSFP, 1xMPO12 APC, 850nm MMF, up to 50m, Flat Top.

OSFP 400G SR4

Functional Block Diagram（each end）

OSFP 400G SR4

General Description

The 400G OSFP SR4 is a four-Channel, Parallel, Pluggable, Fiber-Optic OSFP for 400Gigabit Ethernet applications. This transceiver is a high performance module for short-range data communication and interconnect application. It integrates four data lanes in each direction with 4x53.125GBd. The length of OSFP SR4 is up to 60 meters over OM3 MMF or 100 meters over OM4 MMF. This module is designed to operate over multimode fiber systems using a nominal wavelength of 850nm.

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Storage Temperature	Ts	-40	85	°C
Case Operating Temperature	Top	0	70	°C
Relative Humidity (non-condensation)	RH	15	85	%
Supply Voltage	Vcc	-0.5	3.6	V
Receiver Damage Threshold, per Lane	PRdmg	5		dBm

Recommended Operating Conditions

Parameter	Symbol	Min	Max	Unit
Operating Case Temperature	Top	0	70	°C
Relative Humidity(non-condensing)	RH	15	85	%
Power Supply Voltage	Vcc	3.135	3.465	V
Total Power Consumption	Pc	-	8	W
Supply Current per end			2.55	A
Bit Rate	BR		425	Gbps
Fiber Length on OM3 MMF			60	m
Fiber Length on OM4 MMF			100	m
I2C Clock Frequency	0		400	kHz

Notes:

1. Under condition of 3.465V operating supply voltage, and 70℃case temperature

Transmitter Optical Interface

Parameter		Symbol	Min	Typical	Max	Unit
Data rate per lane		DR		53.125		GBd
Modulation format			PAM4
Center Wavelength1		λ	840	860	868	nm
RMS spectral width		σ			0.6	nm
Average Launch power, each lane		Pavg	-4.6		4	dBm
Optical Power OMA, each Lane，max		POMA	3.5			dBm
OMAouter, each lane min	max (TECQ, TDECQ) <1.8 dB		max [-2.6 , max(TECQ,TECQ) –4.4]			dBm
OMAouter, each lane min	1.8 < max (TECQ, TDECQ) < 4.4 dB		max [-2.6 , max(TECQ,TECQ) –4.4]			dBm
Transmitter and dispersion eye closure (TDECQ), each lane		TDECQ			4.4	dB
Transmitter eye closure for PAM4 (TECQ), each lane		TECQ			4.4	dB
Extinction ratio		ER	2.5			dB
Transmitter power excursion, each lane					2.3	dBm
Optical Return Loss Tolerance		ORLT			14	dB
Optical Power for TX DISABLE					-30	dBm
Encircled fluxb2			≥86% at 19 um ≤30% at 4.5 um
Encircled fluxb2			≥86% at 19 um ≤30% at 4.5 um

Notes:

1. Defined according to the performance of the laser used.

2. Measured into type A1a.2 or type A1a.3, or A1a.4, 50 um fiber, in accordance with IEC 61280-1-4

Receiver Optical Interface

Parameter		Symbol	Min	Typical	Max	Unit
Data rate per lane		BR		53.125		Gbd
Modulation format			PAM4
Center Wavelength1		λ	842	885	948	nm
Damage threshold			5			dBm
Average receive power, each lane			-6.4		4	dBm
Receive power, each lane (OMAouter)						dBm
Receiver reflectance		Rr				dB
Receiver sensitivity, each lane1			RS = max (-4.6, TECQ –6.4)			dBm
Stressed receiver sensitivity, each lane					-2	dBm
Rx LOS	Assert		-15			dBm
	De-assert				-7.5	dBm
	Hysteresis		0.5		5	dB

Notes:

1. Receiver sensitivity is informative and is defined for a transmitter with a value of TECQ. Measured with conformance test signal at TP3for BER = 2.4E-4 Pre-FEC.

Electrical Specifications

Parameter	Min	Typical	Max	Unit
Pre FEC Bit Error Ratio			2.4E-4
Post FEC Bit Error Ratio			1E-12
Transmitter (each Lane)
Differential pk-pk Input Voltage tolerance	750			mV
Differential Termination Mismatch			10	%
Eye height	10			mV
Common-mode to differential-mode return loss	IEEE802.3ck Equation (120G–1)			dB
Vertical eye closure			12	dB
Effective return loss	7.3			dB
Transition Time	10			ps
Receiver (each Lane)
Differential data output swing	300		900	mVpp
Differential termination mismatch			10	%
Eye height	15			mV
Vertical eye closure			12	dB
Common-mode to differential-mode return loss	IEEE802.3ck Equation (120G–1)
Effective return loss	8.5			dB
Transition time	8.5			ps

Package dimensions

shows the package dimensions of the module. Package dimensions are specified in OSFP MSA.

OSFP 400G SR4

Package dimensions

Ordering Information

Part Number

Temperature

Range

Distance

Fiber Type

E/O

O/E

Optical

Interface

R12OSFP-400G-SR4

0 to 70℃

100m

MMF

VCSEL

850nm

MPO12

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