High Speed Backplane Connector

High-speed backplaneConnector

The backboard itself is a more specialPCB, which mainly provides interconnection channels for various types of daughter cards in the system, including signal, power supply, management interface, etc. The structure also plays a supporting role for the sub-card.

The difference between the high-speed backplane and the ordinary backplane is that the signal interconnection rate on the high-speed backplane is higher, andPCB materials as well as backplane connectors are high speed related. The traditional high-speed backplane interconnection system is mainly composed of backplane, daughter card and connector.

The passive high-speed performance of the high-speed backplane interconnection system is mainly affected by the following factors:

1. Lamination structure and routing of daughter card and backplane

2. Backplane connector performance

3. AC capacitors and vias

4. Chip package

Both IEEE and OIF specifications have more detailed frequency domain reference index requirements for backplane interconnection systems.But...Whether it'sIEEE or OIF only defines the electrical performance of backplane interconnection applications, and does not define specific backplane architecture standards, such as standard backplane connectors, backplane dimensions, system management, etc.

ATCA is one of the standards that currently has a high-speed backplane architecture definition. ATCA(Advanced Telecom Computing Architecture) is developed by PICMG, mainly for telecom operator level applications. ATCA consists of a series of specifications, including the core specifications that define the structure, power, cooling, interconnection and system management.

on the backplane structure,ATCA supports multiple topologies such as full network and double star, and also supports Ethernet, PCIE, and SRIO in backplane transmission protocols. The latest version currently supports 100Gbase-KR4 applications, that is, the maximum rate of a single channel is 25Gbps. ATCA also defines dedicated standard backplane connector ADFplus and ADF, corresponding to 10G and 25G rate applications respectively.

After years of research and practice, Aerox Electronics has developed and produced products that meet the requirements ofVPX standard high-speed backplane connector, widely used in defense and aerospace fields, radar, sonar, video image processing, etc. If necessary, please contact our company.