Any board to cable connector for 1G Diff signal?

[aminpix]

My board has 3 pairs of differential signals and 1 pairs of clocks going to another board through a cable.
- The cable should be at least 20cm.
- The data rate is 1G from a xilinx FPGA (LVDS_25)

I am looking for an affordable connector for this board-to-cable connection. Any suggestion?

 

[barry]

checkout the usual suspects: samtec, te connectivity, moles, etc

 

[FvM]

Intended cable type?

 

[aminpix]

Intended cable type?

To send some digital data along with some Digital audio signal to another board. Just to be affordable.

 

[barry]

Define: affordable

 

[D.A.(Tony)Stewart]

1Gbps ethernet works well on CAT cables

 

[aminpix]

Can I use HDMI connector for this application, even if my signals are not TMDS?
Or can I use FFC/FPC connectors?

 

[FvM]

Can I use HDMI connector for this application, even if my signals are not TMDS?
Or can I use FFC/FPC connectors?

HDMI connectors and cables are well suited. FFC/FPC can be also used for GBit differential signals with respective layout.

1Gbps ethernet works well on CAT cables

Bit rate per pair is maximal 250 MBPS. Cable and connectors are not designed for GBit signals but should work on short distance.

--- Updated Feb 4, 2024 ---

If you focus on ready made cables, USB-C should be also considered.

 

[KlausST]

Hi,

SATA cables also come into my mind. But I don´t know about specs.

Klaus

 

[D.A.(Tony)Stewart]

As with any protocol, max speed depends on distance and modulation type for compression with equalization and/or pre-compensation. It will not be simple NRZ or bi-phase data.

https://www.diodes.com/assets/App-Note-Files/AN041-P.pdf?v=1

Impedance control may require SMD 1GHz Baluns to raise CMRR immunity from conducted CM SMPS noise between subsystems and shielding to lower impedance to 50 ohms single-ended or 100 Ohms differential.

Other info

Is Shielded Cable Needed for LVDS Cable? | Quadrangle Products Inc.

If the cable is in a high electromagnetic interference environment the LVDS cable may require a shield. Learn more at Quadrangle Products.

www.quadrangleproducts.com