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SFP56-25/50GBase-CR1-xxM-FL Quick Spec:

Part Number: SFP56-25/50GBase-CR1-0.5M-FL

SFP56-25/50GBase-CR1-1M-FL SFP56-25/50GBase-CR1-1.5M-FL SFP56-25/50GBase-CR1-2M-FL SFP56-25/50GBase-CR1-2.5M-FL SFP56-25/50GBase-CR1-3M-FL SFP56-25/50GBase-CR1-4M-FL SFP56-25/50GBase-CR1-5M-FL


Form Factor: SFP56-SFP56 Cable Type: Twinax (DAC)

Rate Category: 25/50GBase-25/50GBase

Length: 0.5m, 1m, 1.5m, 2m, 2.5m,3m, 4m, 5m Active/Passive: Passive


SFP56-25/50GBase-CR1-xM-FL Features



SFP56-25/50GBase-CR1-xM-FL Applications



Product Description

The FluxLight’s SFP56-25/50GBase-CR1-xM-FL is based on the same shape of SFP+, supports 28G/56G Ethernet standard, can provide 25Gb/s NRZ and 56Gb/s PAM-4 without error code transmission, and can be applied in high-density 28G/56G Ethernet switches and network interfaces to promote server connection in data centers. It uses today's popular SFP+ packaging to provide a more cost effective solution for enterprises to upgrade their 10G Ethernet connections.


Recommended Operating Conditions


Item

Requirement

Test Condition

Operating Temp. Range

-20°C to +75°C

Cable operating temperature range.

Storage Temp. Range (in packed condition)

-40°C to +80°C

Cable storage temperature range in packed condition.

Thermal Cycling Non-Powered

No evidence of physical damage

EIA-364-32D, Method A, -25 to 90C,

100 cycles, 15 min. dwells


Salt Spraying

48 hours salt spraying after shell

corrosive area less than 5.


EIA-364-26


Mixed Flowing Gas

Pass electrical tests per 3.1 after

stressing. (For connector only)


EIA-364-35 Class II,14 days.


Temp. Life

No evidence of physical damage

EIA-364-17C w/ RH, Damp heat 90at

85% RH for 500 hours then return to ambient

Cable Cold Bend

4H,No evidence of physical damage

Condition: -20±2, mandrel diameter is 6 times the cable diameter.


Pin Assignment and Description


image

Mechanical Dimensions

Units: nm


image


Mechanical and Physical Characteristics


ITEM

REQUIREMENT

TEST CONDITON


Vibration

Pass electrical tests per 3.1 after stressing.

Clamp & vibrate per EIA-364-28E,

TC-VII, test condition letter – D, 15 minutes in X, Y & Z axis.


Cable Flex


No evidence of physical damage

Flex cable 180° for 20 cycles (±90° from nominal position) at 12 cycles per minute with a 1.0kg load applied to the cable jacket. Flex in the boot area 90º in each direction from

vertical. Per EIA-364-41C


Cable Plug Retention in Cage


90N Min.

No evidence of physical damage

Force to be applied axially with no damage to cage. Per SFF 8661 Rev 2.1

Pull on cable jacket approximately 1 ft behind cable plug. No functional damage to cable plug below 90N.

Per SFF-8432 Rev 5.0


Cable Retention in Plug


90N Min.

No evidence of physical damage

Cable plug is fixtured with the bulk cable hanging vertically. A 90N axial load is applied

(gradually) to the cable jacket and held for 1 minute. Per EIA-364-38B

Mechanical Shock

Pass electrical tests Per 3.1 after stressing.

Clamp and shock per EIA-364-27B, TC-G,3 times in 6 directions, 100g, 6ms.

Cable Plug Insertion

18N Max.(SFP28)

Per SFF-8432 Rev 5.0


Cable plug Extraction


12.5N Max. (SFP28)

Measure without the aid of any cage kick-out

springs. Place axial load on de-latch to de- latch plug. Per SFF-8432 Rev 5.0


Durability


50 cycles,No evidence of physical damage

EIA-364-09, perform plug &unplug cycles:Plug and receptacle mate rate:

250times/hour. 50times for QSFP28/SFP28 module (CONNECTOR TO PCB)


Electrical Performance


ITEM

REQUIREMENT

TEST

CONDITION


Differen tial Impedanc e

Cable Impedance

105+5/-10Ω


Rise time of 25ps

(20 % - 80 %).

Paddle Card Impedance

100±10Ω

Cable

Termination Impedance


100±15Ω


[Differential

(Input/Output)Return loss SDD11/SDD22]


image

image

Return_loss(f)≥ 16.5-2√f 0.05f4.1

Where 10.66-14log10(f/ 5.5) 4.1f19

f is the frequency in GHz

Return loss(f) is the return loss at frequency f


10MHz≤f

≤19GHz


[Differential to common- mode

(Input/Output)Return loss SCD11/SCD22]


image

image

Return_loss(f)≥ 22-(20/25.78)f 0.01f12.89

Where 15-(6/25.78)f 12.89f19

f is the frequency in GHz

Return_loss(f) is the Differential to common-mode return loss at frequency f


10MHz≤f

≤19GHz

Common-mode to Common-mode

(Input/Output)Return loss SCC11/SCC22

Return_loss(f)≥2dB 0.2f19 Where

f is the frequency in GHz

Return_loss(f) is the common-mode to common-mode return loss at frequency f


10MHz≤f

≤19GHz


Differential Insertion Loss (SDD21 Max.)

(Differential InsertionLoss Max. For TPa to TPb Excluding Test fixture )


10MHz≤f

≤19GHz


image

F AWG

1.25G

Hz

2.5GH

z

5.0GH

z

7.0GH

z


10Ghz

12.89Gh

z

30(1

m)M

ax.


4.5dB


5.4dB


6.3dB


7.5dB


8.5dB


10.5dB

30/2

8(3m

)Max

.


7.5dB


9.5dB


12.2dB


14.8dB


18.0dB


21.5dB

26(3

m)M

ax.


5.7dB


7.2dB


9.9 dB


11.9dB


14.1dB

16.5d

B

26/2

5(5m

)Max

.


7.8dB


10.0dB


13.5dB


16.0dB


19.0dB


22.0dB




Differential to common- mode Conversion Loss- Differential Insertion Loss(SCD21-SDD21)


Conversion _loss(f) – IL(f)≥ 10 0.01f

image

image

12.89

Where

f is the frequency in GHz Conversion_loss(f ) is the cable assembly differential to common-mode conversion loss

IL(f) is the cable assembly insertion loss


10MHz≤f

≤19GHz

MDNEXT(multiple disturber

near-end crosstalk)


≥26dB @12.89GHz

10MHz≤f

≤19GHz

Intra Skew

15ps/m,

10MHz≤f

≤19GHz


Low Level Contact Resistance


70milliohms Max. From initial.

EIA-364-

23:Apply a maximum voltage of 20mV

And a current of 100 mA.

Insulation Resistance

10Mohm(Min.)

EIA364-21:AC

300V 1minute


Dielectric Withstanding Voltage


NO disruptive discharge.

EIA-364-

20:Apply a voltage of 300 VDC for 1minute between adjacent terminals

And between adjacent

terminals and ground.