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100G QSFP28 SR1 850 nm 100 m

Ascent’s QSFP28 100G SR1 transceivers offers service providers, network operators 100 Gigabit Ethernet connectivity options for data center networking, enterprise core aggregation, and service provider transport applications. It integrates receiver and transmitter path on one module.

    Supports 103.1 Gb/s aggregate bit rate

    4 x 25Gb/s electrical interface

    Maximum link length of 100 m on OM4 Multimode Fiber (MMF)

    Hot-pluggable QSFP28 footprint

    Single MPO 12 receptacle

    Maximum power dissipation < 3.5W

    RoHS-6 compliant and lead-free

    Support Digital Diagnostic Monitor interface

    Case operating temperature Commercial: 0°C to +70°C


Absolute Maximum Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Storage Temperature

TS

‑40


85

°C


Storage Ambient Relative Humidity

HA

0


85

%


Maximum Supply Voltage

VCC

‑0.5


4.0

V


Signal Input Voltage


‑0.3


Vcc+0.3

V


Receiver Damage Threshold


+3.4



dBm


Lead Soldering Temperature/Time

TSOLD



260/10

°C/sec

1

Lead Soldering Temperature/Time

TSOLD



360/10

°C/sec

2

Notes:

1. Suitable for wave soldering.

2. Only for soldering by iron.

 

General Product Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Bit Rate (All Wavelengths Combined)

BR



103.1

Gb/s

1

Bit Error Ratio(pre‑FEC)

BER



10‑5


2

Link distance on OM3 MMF

d



70

meters

3

Link distance on OM4 MMF

d



100

meters

3

Notes:

1. Supports 100GBASE‑SR4 per IEEE 802.3bm.

2. Tested with a PRBS 231‑1 test pattern.

3. Requires FEC on the host to support maximum distance, per 100GBASE‑SR4.

 

Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter (per Lane)

Average Output Power per Lane

POUT

‑8.4


2.4

dBm


Transmit OMA per Lane

TxOMA

‑6.4


3.0

dBm


Extinction Ratio

ER

2



dB


Center Wavelength

λC

840


860

nm


RMS Spectral Width

σ



0.6

nm


Transmitter OFF Output Power

POff



‑30

dBm


Transmitter Eye Mask Definition

{X1, X2, X3, Y1, Y2, Y3}


{0.3, 0.38, 0.45, 0.35, 0.41, 0.5}


1

Receiver (per Lane)

Input Optical Wavelength

λIN

840


860

nm


Rx Sensitivity (OMA) per Lane

RSENS



‑10.3

dBm

2

Input Saturation Power (Overload)

PSAT

+3.4



dBm


Receiver Reflectance

Rfl



‑12

dBm


Loss of Signal Assert

PA

‑30



dBm


Loss of Signal De‑Assert

PD



‑11.3

dBm


LOS Hysteresis

PD ‑ PA

0.5


6

dB


Notes:

1. Hit Ratio 1.5x10‑3 hit/sample.

2. Minimum value is informative only and not the principal indicator of signal strength.

 

Electrical Interface Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Supply Voltage

VCC

3.15


3.45

V


Supply Current

ICC



1.5

A


Module Total Power

P



3.5

W

1

Transmitter


Signaling Rate per Lane


25.78125±100ppm

Gb/s


Differential pk‑pk Input Voltage Tolerance

Vin, pp, diff



900

mV


Single‑Ended Voltage Tolerance

Vin, pp

‑0.35


+3.3

V


Module Stress Input Test

Per Section 83E.3.4.1, IEEE802.3bm


Receiver

Signaling Rate Per Lane


25.78125 ppm ± 100ppm

Gb/s


Differential Data Output Swing

Vout, pp

100


400

mVpp

2

300


600

400

600

800

600


1200

Eye Width


0.57



UI


Eye Height, Differential


228



mV


Vertical Eye Closure

VEC

5.5



dB


Notes:

1. Maximum total power value is specified across the full temperature and voltage range. when CDRs are locked or a lack of input signal results in squelch being activated. If incorrect frequencies cause the CDRs to continuously attempt to lock, maximum power dissipation may reach 4.5W.

2. Output voltage is settable in 4 discrete range via I2C. Default range is Range 2 (400 mV to 800 mV).

 

Digital Diagnostic Functions

QSFP28‑100G‑SR01 QSFP28 transceivers support the I2C‑based diagnostics interface specified by the QSFP28 MSA.

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