800G OSFP SR8 850 nm 100 m

Ascent’s OSFP-800G-SR8D-01 is an Eight-Channel, Parallel, Pluggable, Fiber-Optic OSFP for 800 Gigabit Ethernet applications. This transceiver is a high performance module for short-range data communication and interconnect application. The 800GBASE-SR8 OSFP Optical Transceiver Module is designed for use in 800Gb/s systems throughput up to 30m over OM3 or 50m over OM4 multimode fiber (MMF) using a wavelength of 850nm via dual MTP/MPO-12 connectors. Digital diagnostics functions are also available via the I2C interface, as specified by the OSFP MSA, to allow access to real time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, high-performance computing networks, enterprise core and distribution layer applications.

OSFP Serial Optical Interface:

· 8x100G PAM4 retimed 800GAUI-8 electrical interface

· Dual MPO- 12 APC connector is provided

· 8 channel VCSEL arrays and 8 channels PIN photo detector arrays

· Maximum link length of 30m on OM3 or 50m 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 14W in temperature range of 0 to 70°C

Absolute Maximum Rating

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	Notes
Operating Case Temperature	Top	0	70	°C	Operating Case Temperature
					Operating Case Temperature
Relative Humidity(non-condensing)	RH	15	85	%	Relative Humidity(non-condensing)


Power Supply Voltage	Vcc	3.135	3.465	V	Power Supply Voltage
					Power Supply Voltage
Total Power Consumption	Pc	-	14	W	Total Power Consumption
					Total Power Consumption
Supply Current per End			4.465	A	Supply Current per end
					Supply Current per end
Bit Rate	BR		850	Gbps	Bit Rate
Fiber Length on OM3 MMF			30	m	Fiber Length on OM3 MMF
					Fiber Length on OM3 MMF
Fiber Length on OM4 MMF			50	m	Fiber Length on OM4 MMF
					Fiber Length on OM4 MMF
I2C Clock Frequency	0		400	kHz	I2C Clock Frequency

Notes:

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

Optical Transmitter

Unless otherwise stated, the following characteristics are defined under recommended operating conditions.

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Data Rate per Lane	DR		53.125		GBd
Modulation Format		PAM4
Center Wavelength 1	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	P_OMA	3.5			dBm
OMAouter, each Lane Min	P_OMA	max [-2.6 , max(TECQ,TECQ)– 4.4]			dBm	3
Transmitter and Dispersion Eye Closure (TDECQ), each Lane	TDECQ			4.4	dB
Transmitter and Dispersion Eye Closure (TDECQ), each Lane
Transmitter Eye Closure for PAM4 (TECQ), each Lane	TECQ			4.4	dB
Transmitter Eye Closure for PAM4 (TECQ), each Lane
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
		≥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.

3. Max (TECQ, TDECQ)<1.8 dB and 1.8 < max (TECQ, TDECQ) < 4.4 dB

Optical Receiver

Parameter	Symbol	Min.	Typ.	Max.	Unit
Data Rate per Lane	BR		53.125		Gbd
Modulation Format		PAM4
Center Wavelength	λ	842	850	948	nm
Damage Threshold		5			dBm
Average Receive Power, each Lane		–6.4		4	dBm
Receive Power, each Lane (OMAouter)				3.5	dBm
Receiver Reflectance	Rr			– 15	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 TP3 for BER = 2.4E-4 Pre-FEC.

Electrical Specification

Parameter	Min.	Typ.	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				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

Laser Safety

The OSFP-800G-SR8D-01 are Class 1 Laser products according to FDA/CDRH, IEC-60825-1 and IEC60825-2 standards. They must be operated under the specified operating conditions.

Electromagnetic Compatibility

The OSFP-800G-SR8D-01 are designed to meet FCC Class B limits.