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32G SFP28 SR 850 nm 100 m

Ascent’s SFP28 32GBase-SR Transceiver is intended for 100m reach service 28.05Gb/s 850nm Multi-mode high-speed communications equipment where low-cost, extraordinary performance and reliability are essential. It consumes low power, operates base on 3.3V DC power supply and is offered in the commercial temperature range via an LC duplex connector. They are compliant with SFP+ MSA, SFF-8431 and SFF-8432. High speed electrical and optical specifications are compliant with ANSI Fibre Channel FC-PI-6. Digital diagnostics functions are available via a 2-wire common management interface, to allow access to real-time operating parameters. With these features, this easy-to-install, hot-swappable transceiver is suitable for fiber communications application up to 32G. The FC transceiver is applied to Storage Area Networking in Data Centers, Data Center Fiber Channel Interconnections over Backbone, Enterprise Network SAN Interconnections, etc.

·       32GFC(28.05Gb/s) serial optical interface

·       850nm VCSEL transmitter

·       GaAs PIN PD receiver

·       Low power consumption<1W

·       Maximum link length of 100m via OM4 multimode Fiber (MMF)

·       Fibre Channel FC-PI-6 compliant



Absolute Maximum Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Storage Temperature

Ts

-40


85

°C

Relative Humidity

RH

0


85

%

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max

Unit

Case Temperature

Tc

0


+70

°C

Power Supply Voltage

Vcc

3.15

3.30

3.45

V

Signaling Rate each Channel

BR


28.05


Gbps

Optical Characteristics (T=25°C, unless noted)

Parameter

Symbol

Min.

Typ.

Max

Unit

Transmitter






Center Wavelength

λ


840

860

nm

RMS Spectral Width

Pm



0.6

nm

Average Pptical Power

Pavg


-8.4

2.4

dBm

Optical Modulation Amplitude

OMA


-6.4

3

dBm

Average Launch Power of OFF

Transmitter

Poff



-30

dBm

Extinction Ratio

ER


2


dB

Optical Return Loss Tolerance




12

dB

Receiver






Center Wavelength

λ

840

850

860

nm

Damage Threshold


3.4



dBm

Receive Power Overload


2.4



dBm

Receiver Reflectance




-12

dB

Receiver Sensitivity

SENS



-10

dBm

LOS Assert

LOSA

-30



dBm

LOS De-Assert

LOSD



-13

dBm

LOS Hysteresis

LOSH

0.5



dB

Electrical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Power Consumption




1

W

Supply Current

Icc



300

mA


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