Contents:

1. Background of I-PEX developed products for the enterprise market

2. DUALINE^® & LEAPWIRE^® 

3. Transmission distance comparison of PCB vs. I-PEX LEAPWIRE^® (twinax cable)

4. Co-Packaging Trend

5. MEZZTRACK^® Product Introduction

6. DUALINE^® 195-HB Product Introduction

7. DUALINE^® 110-VB-M Product Introduction

8. DUALINE^® 130-HB-D Product Introduction

9. CABLINE^®-CAP Paddle Card Harness Product Introduction

10. CABLINE^®-CA IIP PLUS Paddle Card Harness Product Introduction

1. Background of I-PEX developed products for the enterprise market

In recent years, infrastructure telecommunications equipment, such as servers and switches, have become increasingly fast in the enterprise market. A key challenge for this equipment is that conventional PCB trace transmission has large insertion losses with limited transmission distance. A co-package system also faces the challenge of high-density packaging.
I-PEX has begun development of our new LEAPWIRE^®/DUALINE^® series 112 Gbps PAM4 using high-speed twinax cables, MEZZTRACK^® series 112 Gbps PAM4 board-to-board connection and 64 Gbps PAM4 with paddle card harness solutions to solve these problems. These products will be used for transmission between chips inside equipment and connection to I/O connectors.

2. DUALINE^® & LEAPWIRE^®

DUALINE^®

DUALINE^® series is the name of I-PEX's twinax cable connectors designed for high-speed transmission.

LEAPWIRE^®

LEAPWIRE^® is the name of the high-speed transmission jumper solution by I-PEX. 

Challenge

The problem is that the existing board transmission pattern (shown in Fig. 1) has high insertion loss in the PCB trace transmission. Also, because of the large connector size of the general jumper harness, the connector is placed far from the heat sink, and the I/O connector is connected through the board, resulting in a large transmission loss (shown in Fig. 2).
In our proposed design (shown in Fig. 3), the connector height has a low profile, allowing for placement under the heat sink, putting it closer to the ASIC. Direct connection to I/O connectors is now possible, which helps reduce transmission loss. The small size of the connector also supports airflow measures. 

3. Transmission distance comparison of Low-Loss PCB (Dk3.7) vs I-PEX LEAPWIRE^® (twinax cable)

I-PEX LEAPWIRE^® (twinax cable) can transmit approximately 10.3 times farther in the 28 GHz band than Low-Loss PCB（Dk3.7）transmission. 

Test conditions

Low-transmission-loss board 
Permittivity: 3.7 
(* The permittivity of a general FR-4 board is about 4.7 to 5.0)

• Transmission method: Differential transmission
• Test equipment: Keysight technologies E5080B network a
• Measured frequency : 10MHz～30GHz
• Measured Position :1,2,3,4 (G,S,S,G)

4. Co-Packaging Trend

Co-packaging is intended to address the challenges of bandwidth and power consumption.
It is an advanced mixed-mounting technology that combines electronic components with an IC on a single substrate package. In the next step, it is envisioned that optics and electronic switching will be combined on a single substrate package. Reducing power consumption and thermal effects while reducing the footprint using this technology has become a challenge for the efficient support of high-speed networks. The system also allows the package itself to be replaced in the event of a failure, providing greater design flexibility.As previously mentioned, faster and more efficient transmission and higher density packaging are challenges.
Therefore, smaller connectors and jumper solutions, which are capable of high-speed transmission, are needed.

To solve the above issues, I-PEX developed three products for the enterprise computing market.

	MEZZTRACK®	DUALINE® 195-HB	DUALINE® 110-VB-M	DUALINE® 130-HB-D	CABLINE®-CAP Harness	CABLINE®-CA IIP PLUS Harness
Appearance
Connector type	Board-to-Board	Ｗire-to-Board	Ｗire-to-Board	Ｗire-to-Board	Ｗire-to-Board	Ｗire-to-Board
Mating type	Vertical	Horizontal	Vertical	Horizontal	Horizontal	Horizontal
Product Introduction Video				-	-	-

5. MEZZTRACK^® Board-to-Board Connector Product Introduction

1. MEZZTRACK®    2. On board optical module    3. to I/O connector    4. ASIC

Product Features

• Supports high-speed transmission such as 112 Gbps PAM4
• Proprietary contact design provides excellent isolation between differential pairs
• Low-profile design and small size (H=2.0 mm, D=21.20 mm, W=19.01 mm) supports co-package system

Product Specifications

Reference Data for Transmission Characteristic

Test results

	Insertion Loss			Return Loss
Unit[dB]	Minimum value  up to 14GHz	Minimum value  up to 28GHz	Unit[dB]	Maximum value  up to 14GHz	Maximum value  up to 28GHz
SDD21	-0.11	-0.21	SSD11	-26.50	-18.34

	Near End Cross Talk			Far End Cross Talk
Unit[dB]	Maximum value  up to 14GHz	Maximum value  up to 28GHz	Unit[dB]	Maximum value  up to 14GHz	Maximum value  up to 28GHz
SDD31	-59.44	-53.02	SSD41	-62.17	-54.69
SDD51	-63.07	-57.99	SDD61	-67.04	-60.30
SDD71	-68.48	-58.26	SDD81	-64.88	-60.90

These products are currently in the prototype stage. Please note that product specifications are subject to change.
If you need samples, please contact us.

6. DUALINE^® 195-HB Product Introduction

Product Features

・Supports high-speed transmission, such as 112 Gbps PAM4
Uses twinax cable with excellent signal integrity performance
・Low-profile design (H=3.0 mm) and small size (D=11.0 mm W=40.0 mm) allows connector to be placed under the heat sink closer to the CPU. Its small size design also contributes to airflow measures inside equipment
・Has mechanical lock to prevent un-mating
 

Product Specifications

Reference Data for Transmission Characteristic

Test condition

• Cable: Twinax cable, AWG #32, differential 92 ohm
• Cable length : 300 mm
• Connector on both ends

  Test results

	Insertion Loss		Return Loss
Unit[dB]	Minimum value  up to 14GHz	Minimum value  up to 28GHz	Maximum value  up to 14GHz	Maximum value  up to 28GHz
Pair 7	-2.24	-3.43	-20.15	-16.39
Pair 8	-2.25	-3.46	-19.94	-15.85

These products are currently in the prototype stage. Please note that product specifications are subject to change.
If you need samples, please contact us.

7. DUALINE^® 110-VB-M Product Introduction

Product Features

• Supports high-speed transmission such as 112 Gbps PAM4
• Uses twinax cable with excellent signal integrity performance
• Supports co-package system
• Small, space-saving product for high-density mounting　
• Multi-pin array, 64 pair (16 differential pair x 4 rows)

Product Specifications

Reference Data for Transmission Characteristic

Test condition

• Cable: Twinax cable, AWG #34, differential 92 ohm
• Cable length: 300 mm
• Connector on both ends

  Test results

	Insertion Loss		Return Loss
Unit[dB]	Minimum value  up to 14GHz	Minimum value  up to 28GHz	Maximum value  up to 14GHz	Maximum value  up to 28GHz
Pair 1	-3.25	-5.06	-20.68	-15.19
Pair 2	-3.21	-6.15	-19.15	-16.53
Pair 3	-3.29	-5.16	-20.9	-15.03

These products are currently in the prototype stage. Please note that product specifications are subject to change.
If you need samples, please contact us.

8. DUALINE^® 130-HB-D Product Introduction

Product Features

• Supports high-speed transmission 112 Gbps/lane PAM4
• Double-row type, ideal for space-constrained applications
• LEAPWIRE^® jumper solution for twinax cable

 Product Specifications

Reference Data for Transmission Characteristic

Test condition

• Cable: Twinax cable, AWG #34, differential 92 ohm
• Cable length: 356 mm
• Connector on both ends

Test results

	Insertion Loss		Return Loss
Unit[dB]	Minimum value  up to 14GHz	Minimum value  up to 28GHz	Maximum value  up to 14GHz	Maximum value  up to 28GHz
Upper	-3.67	-5.57	-17.55	-13.38
Lower	-3.55	-5.33	-18.04	-16.60

	Near End Cross Talk		Far End Cross Talk
Unit[dB]	Maximum value up to 14GHz	Maximum value up to 28GHz	Maximum value  up to 14GHz	Maximum value  up to 28GHz
Upper	-51.92	-48.64	-51.22	-44.55
Lower	-59.77	-50.91	-54.59	-50.34

These products are currently in the prototype stage. Please note that product specifications are subject to change.
If you need samples, please contact us.

9. CABLINE^®-CAP Paddle Card Harness Product Introduction

Product Features

• Supports high-speed transmission 64 Gbps/lane PAM4 using paddle card technology
• Low profile, ideal for space-constrained applications
• LEAPWIRE^® jumper solution for micro-coaxial cable
• Mates to standard CABLINE^®-CA Receptacle(20525-#50E-02)

Product Specifications

Reference Data for Transmission Characteristic

Test condition

• Plug: CABLINE-CAP paddle-card harness
• Cable: L=250 mm, 500 mm (micro-coaxial AWG #38, differential 90 ohm)
• Receptacle: CABLINE-CA receptacle assembly

Test results

For more information about CABLINE^®-CAP, please click here.
If you need samples, please contact us.

10. CABLINE^®-CA IIP PLUS Paddle Card Harness Product Introduction

Product Features

• Supports high-speed transmission 64Gbps/lane PAM4 using paddle card technology
• Low profile, ideal for space-constrained applications and includes ZenShield^® full shield cover
• LEAPWIRE^® jumper solution for twinax cable & micro-coaxial cable
• Mates to standard CABLINE^®-CA II PLUS Receptacle(20790-060E-01/-02)

Product Specifications

Reference Data for Transmission Characteristic

Test condition

• Plug: CABLINE-CA IIP PLUS paddle card harness
• Cable: Test sample 1: L=390mm (Twinax cable #34 differential 85 ohm)                      
              Test sample 2: L=165mm (micro-coaxial #38 differential 85 ohm)
• Receptacle: CABLINE-CA II PLUS receptacle assembly

Test results with test sample 1

Insertion Loss		Return Loss
Minimum value  up to 16GHz/Unit [dB]		Maximum value  up to 16GHz/Unit [dB]
-4.522		-19.596

Near End Cross Talk		Far End Cross Talk
Maximum value up to 16GHz/Unit [dB]		Maximum value  up to 16GHz/Unit [dB]
-36.276		-39.257

Test results with test sample 2

Insertion Loss		Return Loss
Minimum value  up to 16GHz/Unit [dB]		Maximum value  up to 16GHz/Unit [dB]
-5.427		-20.144

Near End Cross Talk		Far End Cross Talk
Maximum value up to 16GHz/Unit [dB]		Maximum value  up to 16GHz/Unit [dB]
-38.407		-40.104

For more information about CABLINE^®-CA IIP PLUS, please click here.
If you need samples, please contact us.