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DockPort solution enables USB, power over single cable

Posted: 05 Aug 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Texas Instruments? interface solution? tablet? USB data? docking station?

Texas Instruments has introduced the HD3SS2521, a single-chip DockPort interface solution. TI's latest solution delivers audio/video, USB data and power over a single cable between a notebook, ultrabook or tablet PC and a docking station or dongle. DockPort provides a lower cost alternative to proprietary implementations and offers more features than standard USB docking stations.

The HD3SS2521 controller enables DisplayPort, USB 3.0, USB 2.0 and power over a single interconnecting cable, and provides the control logic and automatic switching required on the cable's host side and dock side.

The single-chip interface solution incorporates a Bidirectional 2:1 switch which manages DockPort detection, as well as signal and power switching. It enables display, USB, power, and computer docking interface over a single cable, which allows designers to create smaller, more affordable docking stations. The solution comes in a highly integrated 5x11mm package. Its bidirectional power also reduces the number of connections by allowing upstream charging of host-side computers, or downstream powering of one or more dongles.

Operating in two-lane mode with USB 3.0 data, the HD3SS2521 supports one monitor with resolutions up to 4K2Kp at 30 frames per second (fps) and 30bits per pixel (bpp), or multiple monitors with resolutions less than or equal to 1920 by 1200p at 60fps. In four-lane mode with USB 2.0, it supports the following configurations: 1) one 4K2Kp at 60fps and 30bpp, 2) two 4K2Kp monitors at 30fps and 30bpp, or 3) four or more monitors with resolutions less than or equal to 1920 by 1200p at 60fps.

TI's latest interface solution enables system designers to create smaller, more affordable docking stations that connect and synchronise computers with LCD monitors, dongles, keyboard/mouse, Gigabit Ethernet, storage, audio speakers, DVD/Blu-ray media player and smartphone.





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