USB3803B-1-GL-TR

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The USB3803B-1-GL-TR is a USB-Composite Peripheral Controller and an interface controller. It allows devices to be connected to a computer and act as both a composite device and a USB 2.0 hub. The controller enables the system designer to build high-speed USB devices that provide multiple functions with a low system cost.

Details on this product are plentiful. It contains three functional blocks, an integrated root hub, general purpose input/output (GPIO) pins, and a PHY layer interface for USB 2.0 connectivity. The root hub supports dual-role operation and can act as both a host, or a device. It contains all of the necessary USB 2.0, On-The-Go (OTG), Low-Speed, Full-Speed, and High-Speed circuitry, as well as support for simultaneous operation of both main link and embedded Hub protocols.

In addition to the root hub, the USB3803B-1-GL-TR contains up to 12 GPIO pins. They are used to read and write control and data information between the USB device and the host. It also features a configurable interface circuit that allows the connection of multiple USB devices, such as analog and digital peripherals, to the same bus. This allows for multiple devices to be connected to the same computer, while reducing cost and complexity on the system design.

On the physical side, the USB3803B-1-GL-TR contains an integrated 25 MHz oscillator and two 2.0mm SMT packages. It can operate both as a single-chip device and as a dual-chip solution that connects two USB3803B-1-GL-TRs in series. It supports both USB On-The-Go (OTG), High-Speed, Full-Speed, and Low-Speed data transfer rates, with support for multicast data transmission.

The USB3803B-1-GL-TR’s primary application is as an interface controller for portable and embedded USB devices, such as cameras, PDAs, audio/video converters, USB flash drives, and webcams. This controller allows designers to quickly add USB ports to their system without having to write any additional firmware. It also allows the builder to use fewer system components while providing enhanced functionality.

Overall, the USB3803B-1-GL-TR provides a simple, yet powerful solution for adding multiple interfaces to a system. It combines a robust USB 2.0 hub with 12 GPIO pins, allowing a wide range of devices to be connected to the same bus. It is a great choice for creating high-speed USB-Composite devices with minimal system cost and complexity.

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