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32G SFP28 SR 850 nm 100 m

Ascent’s SFP28 32G single channel, pluggable fiber-optic transceivers are designed for use in 8G/16G/32G Fibre Channel links up to 28.05 Gb/s data rate with distances up to 100m over multi-mode fiber.

    Up to 28.05 Gb/s bi-directional data links

    Hot-Pluggable SFP28 form factor

    Built-in digital diagnostic functions

    850 nm VCSEL laser and PIN photo-detector

    Duplex LC receptacle

    Single 3.3V power supply

    Power dissipation < 1W

    RoHS-6 compliant

    Commercial case temperature range: 0°C to 70°C

    Internal CDR on both Transmitter and Receiver channel


Absolute Maximum Ratings

Parameter

Symbol

Min.

Max.

Unit

Note

Supply Voltage

Vcc

0

3.6

V


Storage Temperature

Ts

‑40

+85

°C


Operating Humidity

5

85

%



General Specifications

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Commercial Temperature

Tc

0


+70

°C


Power Supply Voltage

Vcc

3.13

3.3

3.47

V


Power Supply Current

Icc



300

mA


Fiber Length on 50/125 μm High‑Bandwidth (OM3) MMF




150

100

70

m

m

m

1

2

3

Fiber Length on 50/125 μm High‑Bandwidth (OM4) MMF




190

125

100

m

m

m

1

2

3

Notes:

1. At 8.5 Gb/s fibre channel data rate.

2. At 14.025 Gb/s fibre channel data rate.

3. At 28.05 Gb/s fibre channel data rate.

Optical and Electrical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter

Data Rate

BR


8.5

14.025

28.05


Gbps


Centre Wavelength

λc

840

850

860

nm


Spectral Width (RMS)

σ



0.6

nm


Average Output Power

Pavg

‑8.2


2

dBm

1



‑7.8


2

dBm

2



‑6.7


2

dBm

3

Optical Power OMA

POMA

‑5.2



dBm

1



‑4.8



dBm

2



‑3.2



dBm

3

Extinction Ratio

ER

2



dB


Differential Data Input Swing 

VIN, PP

50


900

mV




180


700

mV


Input Differential Impedance

ZIN

90

100

110

Ω


TX Disable

Disable


2.0


Vcc

V


Enable


0


0.8

V


TX Fault

Fault


2.0


Vcc

V


Normal


0


0.8

V


Receiver

Data Rate

BR


8.5

14.025

28.05


Gbps

4

Centre Wavelength

λc

840

850

860

nm


Unstressed Receiver Sensitivity (OMA)

RXsens



‑11.2

dBm

1





‑10.5

dBm

2





‑10.2

dBm

3

Average Receiver Power

RxMAX



2

dBm


Bit Error Rate

BER



E‑12

E‑6


5

LOS De‑Assert

LOSD



‑13

dBm


LOS Assert

LOSA

‑30



dBm


LOS Hysteresis


0.5



dB


Differential Data Output Swing

Vout.pp

300


850

mV


LOS

High

2.0


Vcc

V


Low

0


0.8

V


 Notes:

1. At 8.5 Gb/s fibre channel data rate.

2. At 14.025 Gb/s fibre channel data rate.

3. At 28.05 Gb/s fibre channel data rate.

4. 8.5 Gb/s Prbs7 for 8GFC, 14.025 Gb/s Prbs31 for 16GFC, 28.05 Gb/s Prbs31 for 32GFC.

5. For 32GFC with FEC, receiver sensitivity is defined at 10‑6 BER level, not 10‑12 BER level.

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