200G QSFP56 To 2X100G QSFP56 Breakout Passive DAC Direct Attach Copper Cable

ITEM

REQUIREMENT

TEST

CONDITION

Differential

Impedance

Cable

Impedance

100±5Ω

Rise time of

25ps

(20 % - 80 %).

Paddle Card Impedance

100±10Ω

Cable

Termination

Impedance

100±15Ω

Differential

(Input/Output)Return

loss SDD11/SDD22

Return_loss(f)≥16.5-2√f                          0.05≤f﹤4.1

                        10.66-14log10(f/ 5.5)        4.1≤f≤26.5

Where f is the frequency in GHz 

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

10MHz≤f

≤26.5GHz

Differential to

common-mode

(Input/Output)Return

loss SCD11/SCD22

Return_loss(f)≥ 22-(20/25.78)       0.01≤f﹤12.89

                           15-(6/25.78)f        12.89≤f≤26.5

Where f is the frequency in GHz

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

10MHz≤f

≤26.5GHz

Common-mode to

Common-mode

(Input/Output)Return

loss SCC11/SCC22

Return_loss(f)≥2dB       0.2≤f≤126.5

Where f is the frequency in GHz

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

10MHz≤f

≤26.5GHz

Differential Insertion

Loss (SDD21 Max.)

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

Passive Cable: -17.16dB Min@13.28GHz.

10MHz≤f

≤13.28GHz

Differential to

common-mode

Conversion

Loss-Differential

Insertion

Loss(SCD21-SDD21)

Conversion _loss(f) – IL(f)≥10                       0.01≤f< 12.89

                                          27-(29/22)f         12.89≤f﹤15.7

                                           6.3                      15.7≤f≤26.5

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

≤26.5GHz

MDNEXT(multiple

disturber

near-end crosstalk)

≥26dB @13.28GHz

10MHz≤f

≤26.5GHz

ITEM

REQUIREMENT

TEST CONDITON

[Low Level Contact Resistance]

20milliohms 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 dischharge.

EIA-364-20:Apply a voltage of 300 VDC for 1minute between adjacent terminals And between adjacent terminals and

ground.

ITEM

REQUIREMENT

TEST CONDITON

[Operating Temp. Range]

0°C to +70°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 90℃ at

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.

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 axxially with no damage to cage. Per DSFP MSA Rev 1.0

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

40N Max.(QSFP56)

18N Max.(DSFP56)

Per SFF8661 Rev 2.1

Per DSFP MSA Rev 1.0

Cable plug Extraction

30N Max. (QSFP56)

12.5N Max. (DSFP56)

Place axial load on de-latch to de-latch plug.Per SFF8661 Rev 2.1

Per DSFP MSA Rev 1.0

Durability

50 cycles,No evidence of

physical damage

EIA-364-09, perform pplug &unplug

cycles:Plug and receptacle mate rate: 250times/hour. 50times for QSFP/DSFP module (CONNECTOR TO PCB)