Focus on USB 3.0
The USB 3.0 protocol was developed to provide higher data transfer rates and increase power delivery capabilities by supporting higher current levels on each port. It specifies new power management features, as well as new cables and connectors that ensure backward compatibility with USB 2.0 devices. Physically, the most significant change is that four copper data lines have been added in parallel with the existing USB 2.0 wires. This enables a fourth transfer mode to be implemented at 4.8Gbit/s, dubbed SuperSpeed, which allows real-world transfers up to 400MByte/s.
As well as this order of magnitude speed improvement, bus power specifications have been increased so that a configured device can draw up to 900mA – 80% more than USB 2.0. USB 3.0 can supply increasingly power-hungry devices, and deliver charging more rapidly to portable devices. Moreover, USB 3.0 is more power-efficient than previous generations. New features include support for idle, sleep and suspend states, as well as Link, Device, and Function-level power management.
Minimum device operating voltage is dropped from 4.4V to 4V. These advantages will bring a
wealth of opportunities for designers and OEMs.
Follow the links below for more information on the support we can provide you with your USB 3.0 designs:
