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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






Relative Humidity(non-condensing)

RH

15

85

%

Relative Humidity(non-condensing)











Power Supply Voltage

Vcc

3.135

3.465

V

Power Supply Voltage






Total Power Consumption

Pc

-

14

W

Total Power Consumption






Supply Current per End



4.465

A

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 OM4 MMF



50

m

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

POMA

3.5

dBm


OMAouter, each Lane Min

POMA

max [-2.6 , max(TECQ,TECQ)– 4.4]

dBm

3

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





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.

 


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