RTS5821数据手册Realtek中文资料规格书

描述 Description

The RTS5821 is a USB 2.0 compliant camera controller designed for notebook and desktop PCs. The built-in extremely low-power transceiver provides superior compatibility with USB hosts and high quality for image applications. It is fully compliant with the USB Video Class, and operates with native drivers provided in Windows XP, Windows Vista, Windows 7, and Windows 8 operating systems.
The RTS5821 integrates a USB 2.0 transceiver that is optimized for high performance data transfer rate, high speed MCU (Micro Processor Unit), DC-to-DC regulators, sensor controller, image signal processing engine, MJPEG compression into a single chip. It supports most available CMOS sensors from VGA (640x480) to UXGA (1600x1200) resolution.
The RTS5821 is designed to support various types of access interface to achieve the best compatibility with major SOC CMOS image sensors.
The RTS5821 supports both an internal MCU program ROM and an external NOR-Flash interface. With the external Nor-flash interface (100-pin LQFP package, a DVP package to provide a friendly debugging environment), the control firmware could be easily re-configured via a USB link. This could ease the software developing work and shorten the prototyping schedule.
A new generation ISP (Image Signal Processing) engine supports most UVC defined image adjustments. In addition, this engine also has offers functions such as Lens Shading Correction, dead pixel cancellation, G1G2 filter, Color Correction Matrix, histogram statistic Auto White Balance, scaling function and so on. These functions help compensate for intrinsic inaccuracy in lens and image sensors to provide better image quality. The internal scaling filter can scale down higher resolutions for size reduction purposes
The RTS5821 integrates five regulators to save BOM cost and PCB area. One 5V-to-3.3V regulator converts USB bus power to 3.3V power for device I/O. Two 3.3V-to-1.2~3.1V adjustable regulator converts 3.3V to 1.2~3.1V power for the sensor’s analog and IO parts. Two 3.3V-to-1.2V regulators convert 3.3V power to 1.2 core power for the RTS5821. 
A significant feature of the RTS5821 is enhanced power management. Its power consumption is 20% lower than similar controllers. With multiple regulators, an integrated image signal processing engine and motion JPEG encoder, the RTS5821 consumes less power from the USB bus whether in normal operation, standby, or suspend mode

应用 Application

Notebook PCs
Netbook PCs
All-In-One PCs
Ultra mobile devices