amphenol qsfp fdr-edr connector proposal 06-03-10 final · amphenol ibta 4x25g connector proposal...

Amphenol

IBTA 4x25G Connector Proposal Amphenol Page 3 6/4/2010

Express Port FS1-E38 Features and Compatibility to SFF-8436 COMPATIBILITY

• Mating end compliant with SFF-8436 (mates with existing QSFP modules) • Overall envelope height, width, depth compliant with SFF-8436 (fits into existing QSFP cages) • Foot print compatible with SFF-8436 with addition of two grounding plate SMT pads

NEW FEATURES

• Added grounding plate to improve impedance • Added grounding plate SMT pads to improve grounding and retention to PCB • New over-molding construction • New stamped and formed contacts to eliminate mating on cut edge • New gull wing contact design

Figure 1- New Features

Added grounding plate SMT pads to improve grounding and retention to PCB

New gull wing contact design

New over‐molding construction

Amphenol


Express Port FS1-E38 Features and Compatibility to SFF-8436 (cont.)

Figure 2 More New features

New stamped and formed contacts to eliminate mating on cut edge

Amphenol


Express Port FS1-E38 Features and Compatibility to SFF-8436 (cont.)

Figure 3 Foot print compatible with SFF-8436, with the addition of two grounding pads for grounding plate

Two SMT pads added for grounding plate

Amphenol


Description of Models (cont.) Model for Module Compliance Board and Host Compliance Board The model for the Module Compliance Board is based on the Amphenol 564390002 high speed test card. The insertion loss characteristics of the high speed test card meet the proposed insertion loss characteristics of a 2x calibration trace divided by two of 0.975dB @ 5GHz and 2.125dB @ 12.5GHz. The model data used in the simulations are s4p data captures of the 1x and 2x calibration traces from the Amphenol 56439001 High Speed Calibration Board.

Figure 5 - Calibration / Test boards The model for the Host Compliance Board is also based on the Amphenol 564390002 high speed test card. The insertion loss requirements for the Host Compliance board are 1.75dB @ 5GHz and 4dB @ 12.5GHz. This is approximated using the 2x calibration trace on the 564390001. The data is captures using a 4-port Rhode and Schwarz ZVA24 VNA using 1999 points in a 10MHz – 20GHz frequency range. The simulation of the mated Module Compliance Board and Host Compliance Board is done in Ansoft Designer using the s4p data captures of the 1x and 2x calibration traces and the linked HFSS Model of the receptacle.

Amphenol


Description of Models (cont.) HFSS Model Paddle card with Cable Termination The QSFP paddle card model is a full model having 4 transmitter channels and 4 receiver channels. The model is terminated to 30AWG, 28AWG and 26AWG cable assemblies. The port configuration of the models allows it to be linked to the QSFP+ receptacle model and a Cable Assembly model to predict the performance of a cable assembly at FDR and EDR data rates The model is built and simulated using Ansoft HFSS v12.1. Model linking is performed using Ansoft Designer v5.0.

Amphenol


Description of Models (cont.) Model for Cable The model for the Cable is measured s4p data using Spectra-Strip 160-2899-966 28AWG EXF cable and Spectra-Strip 160-2899-970 28AWG EXD. The data is captured using a Rhode and Schwarz ZVA24 VNA. The s4p data is then duplicated eight times to in Ansoft Designer to simulate an 8pr cable assembly. The model therefore does not contain the effect of NEXT and FEXT in the cable assembly. However it is thought to be small enough to have a negligible contribution to the overall system model. The cable model is used to simulate a cable assembly mated to the receptacle and connected to a Module Compliance Board.

Amphenol


Module Compliance Board Model

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-3.00

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-2.00

-1.50

-1.00

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(S(D

iff1

,Diff

2))

Ansoft LLC Nexxim1SDD21 Insertion Loss ANSOFT

m1

m2

Curve Info

dB(S(Dif f1,Diff2))LinearFrequency

Name X Y

m1 5.0000 -0.8494

m2 12.5000 -1.7957

Figure 16 - Insertion Loss

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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dB

(S(D

iff1

,Diff

1))

Ansoft LLC Nexxim1SDD11 Return Loss ANSOFT

Curve Info

dB(S(Diff1,Diff1))LinearFrequency

Figure 17 - Return Loss

Amphenol


Host Compliance Board Model

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-6.00

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0.00

1.00

dB

(S(D

iff1

,Diff

2))


m1

m2

Curve Info


Name X Y

m1 5.0000 -1.6259

m2 12.5000 -3.4931


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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iff1

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1))


Curve Info



Amphenol


Cable Model

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Ansoft LLC Nexxim1Insertion Loss and Return Loss ANSOFT

Curve Info



Figure 20 - 1m 28AWG EXF (Insertion Loss and Return Loss)

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Y1

Ansoft LLC Nexxim1Insertion Loss and Return Loss ANSOFT

Curve Info



Figure 21 - 1m 28AWG EXD (Insertion Loss and Return Loss)

Amphenol


QSFP RECEPTACLE WITH COMPLAINCE BOARD RESULTS

MODULE COMPLIANCE TRACE HOST COMPLIANCE TRACE

Po

rt1

Po

rt2

Po

rt3P

ort4

Po

rt5

Po

rt6

Po

rt7P

ort8

Po

rt9

Po

rt1

0P

ort1

1P

ort1

2P

ort

13

Po

rt1

4P

ort1

5P

ort1

6P

ort

17

Po

rt1

8P

ort1

9P

ort2

0P

ort

21

Po

rt2

2P

ort2

3P

ort2

4P

ort

25

Po

rt2

6P

ort2

7P

ort2

8P

ort

29

Po

rt3

0P

ort3

1P

ort3

2

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

Po

rt1

Po

rt2

Po

rt3

Po

rt4

TX1N_TRACE_T1

TX1P_TRACE_T1

TX3N_TRACE_T1

TX3P_TRACE_T1

TX2N_TRACE_T1

TX2P_TRACE_T1

TX4N_TRACE_T1

TX4P_TRACE_T1

TX1N_T1

TX1P_T1

TX3N_T1

TX3P_T1

TX2N_T1

TX2P_T1

TX4N_T1

TX4P_T1

RX2N_TRACE_T1

RX2P_TRACE_T1

RX4N_TRACE_T1

RX4P_TRACE_T1

RX1N_TRACE_T1

RX1P_TRACE_T1

RX3N_TRACE_T1

RX3P_TRACE_T1

RX2N_T1

RX2P_T1

RX4N_T1

RX4P_T1

RX1N_T1

RX1P_T1

RX3N_T1

RX3P_T1

Figure 23 - QSFP+ Receptacle with Host Compliance and Module Compliance Boards

Table 1- Port Assignment for Model Port 1 Port 2 Diff1 100ohm Comm1 25ohm Tx1_in Port 3 Port 4 Diff2 100ohm Comm2 25ohm Tx1_out Port 5 Port 6 Diff3 100ohm Comm3 25ohm Tx2_in Port 7 Port 8 Diff4 100ohm Comm4 25ohm Tx2_out Port 9 Port 10 Diff5 100ohm Comm5 25ohm Tx3_in Port 11 Port 12 Diff6 100ohm Comm6 25ohm Tx3_out Port 13 Port 14 Diff7 100ohm Comm7 25ohm Tx4_in Port 15 Port 16 Diff8 100ohm Comm8 25ohm Tx4_out Port 17 Port 18 Diff9 100ohm Comm9 25ohm Rx2_in Port 19 Port 20 Diff10 100ohm Comm10 25ohm Rx2_out Port 21 Port 22 Diff11 100ohm Comm11 25ohm Rx4_in Port 23 Port 24 Diff12 100ohm Comm12 25ohm Rx4_out Port 25 Port 26 Diff13 100ohm Comm13 25ohm Rx1_in Port 27 Port 28 Diff14 100ohm Comm14 25ohm Rx1_out Port 29 Port 30 Diff15 100ohm Comm15 25ohm Rx3_in Port 31 Port 32 Diff16 100ohm Comm16 25ohm Rx3_out

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-15.00

-14.00

-13.00

-12.00

-11.00

-10.00

-9.00

-8.00

-7.00

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-4.00

-3.00

-2.00

-1.00

0.00

Y1


Curve Info










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Y1


Curve Info






dB(S(Diff11,Dif f11))LinearFrequency




Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

Y1

Ansoft LLC Nexxim1SCC11 Common Mode Return Loss ANSOFT

Curve Info

dB(S(Comm1,Comm1))LinearFrequency








Figure 26 - Common Mode Return Loss

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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-12.50

-10.00

-7.50

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Y1

Ansoft LLC Nexxim1SCC21 Common Mode Insertion Loss ANSOFT

Curve Info









Figure 27 - Common Mode Insertion Loss

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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1Ansoft LLC Nexxim1Near End Crosstalk ANSOFT

Figure 28 - Near End Crosstalk

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Ansoft LLC Nexxim1Far End Crosstalk ANSOFT

Figure 29 - Far End Crosstalk

Amphenol


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1

Ansoft LLC Nexxim1MDNEXT ANSOFT

Curve Info

dB10(MDNEXT_Channel1)LinearFrequency




Figure 30 – Multi-Disturber Near End Crosstalk

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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Ansoft LLC Nexxim1MDFEXT ANSOFT

Curve Info

dB10(MDFEXT_Channel1)LinearFrequency




Figure 31 – Multi-Disturber Far End Crosstalk

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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1Ansoft LLC Nexxim1SCD21 Mode Conversion ANSOFTCurve Info

dB(S(Dif f1,Comm2))LinearFrequency








Figure 32 - Mode Conversion

Figure 33 – Integrated Crosstalk Noise: 1.4mV rms

Amphenol


MODEL RESULTS – EYE DIAGRAMS

Figure 34 - PRBS7, Vin = 1Vp-p, 14Gbps, Eye Diagram without FFE (Tx1 channel simulated)

Figure 35- PRBS7, Vin = 1Vp-p, 25Gbps, Eye Diagram with 3-tap FFE

Amphenol


COMPLETE CABLE ASSEMBLY MODEL

MODULE COMPLIANCE TRACES

QSFP PADDLE CARD CABLE TERMINATION

28AWG CABLE

Figure 36 - Simulated 1m 28AWG EXF QSFP+ Cable Assembly and 1m 28AWG EXD QSFP+ Cable

Assembly

Table 2- Port Assignment for Model

Port 1 Port 2 Diff1 100ohm Comm1 25ohm Tx1_in Port 3 Port 4 Diff2 100ohm Comm2 25ohm Rx1_out Port 5 Port 6 Diff3 100ohm Comm3 25ohm Tx2_in Port 7 Port 8 Diff4 100ohm Comm4 25ohm Rx2_out Port 9 Port 10 Diff5 100ohm Comm5 25ohm Tx3_in Port 11 Port 12 Diff6 100ohm Comm6 25ohm Rx3_out Port 13 Port 14 Diff7 100ohm Comm7 25ohm Tx4_in Port 15 Port 16 Diff8 100ohm Comm8 25ohm Rx4_out Port 17 Port 18 Diff9 100ohm Comm9 25ohm Rx2_in Port 19 Port 20 Diff10 100ohm Comm10 25ohm Tx2_out Port 21 Port 22 Diff11 100ohm Comm11 25ohm Rx4_in Port 23 Port 24 Diff12 100ohm Comm12 25ohm Tx4_out Port 25 Port 26 Diff13 100ohm Comm13 25ohm Rx1_in Port 27 Port 28 Diff14 100ohm Comm14 25ohm Tx1_out Port 29 Port 30 Diff15 100ohm Comm15 25ohm Rx3_in Port 31 Port 32 Diff16 100ohm Comm16 25ohm Tx3_out

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-50.00

-45.00

-40.00

-35.00

-30.00

-25.00

-20.00

-15.00

-10.00

-5.00

0.00Y

1Ansoft LLC Nexxim1SDD21 Insertion Loss ANSOFT

Curve Info






Figure 43 - Insertion Loss – 1m 28AWG EXD

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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Y1


Curve Info









Figure 44 - Return Loss – 1m 28AWG EXD

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-120.00

-100.00

-80.00

-60.00

-40.00

-20.00

Y1

Ansoft LLC Nexxim1Near End Crosstalk ANSOFT

Figure 45 - Near End Crosstalk – 1m 28AWG EXD

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Figure 46 - Far End Crosstalk– 1m 28AWG EXD

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-60.00

-50.00

-40.00

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0.00

Y1

Ansoft LLC Nexxim1SCD21 Mode Conversion ANSOFT

Curve Info





Figure 47 - Mode Conversion– 1m 28AWG EXD

Figure 48 – Eye Diagram, 25Gbps, PRBS7, 1Vp-p

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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1Ansoft LLC Nexxim1SDD21 Insertion Loss ANSOFT

Curve Info









Figure 49 - Insertion Loss – 3m 28AWG EXD

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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Y1


Curve Info









Figure 50 - Return Loss – 3m 28AWG EXD

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-120.00

-100.00

-80.00

-60.00

-40.00

-20.00

Y1

Ansoft LLC Nexxim1Near End Crosstalk ANSOFT

Figure 51 - Near End Crosstalk – 3m 28AWG EXD

0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

-100.00

-90.00

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-70.00

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Y1


Figure 52 - Far End Crosstalk– 3m 28AWG EXD

Amphenol


0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00F [GHz]

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Ansoft LLC Nexxim1SCD21 Mode Conversion ANSOFTCurve Info









Figure 53 - Mode Conversion– 3m 28AWG EXD

amphenol qsfp fdr-edr connector proposal 06-03-10 final · amphenol ibta 4x25g connector proposal...

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