FE_PW1235ProductBrief(005-0072-10)RevB

PW1235产品说明

PW1235 Pixelworks provides a complete end-to-end product line of systemon-a-chip integrated circuits (ICs), front-end ICs, connectivity ICs and software for the advanced display market. The Pixelworks product line speeds time-to-market while setting new benchmarks in image quality, broad compatibility, ease of use, and lower overall system cost. Pixelworks’ innovative solutions are optimized for use with Monitors, Digital TVs, and Projectors for rich, crisp display of video, computer graphics, and network information.

Video SignalProcessor for use with Analog and Digital Displays The PW1235 is a high-quality, digital video signal processor that incorporates Pixelworks’ patented deinterlacing, scaling, and video enhancement technologies. The chip accepts industry-standard video formats and resolutions, and converts the input into many desired output formats. The video algorithms are highly efficient, providing excellent quality video. The chip combines many functions into a single device, including a triple Digital-to-Analog Converter (DAC), memory controller, auto-configuration, and others. This high level of integration enables simple, flexible, cost-effective solutions requiring fewer components.

Deinterlace Processor

Per-pixel motion compensated deinterlacing algorithms to produce artifact-free progressive scan video signals Dynamic angle interpolated deinterlacing to eliminate staircasing or jaggedness Film mode for 3:2/2:2 pull-down materials

Video Enhancement

Interlaced Video Input 60 Hz, 525-line (NTSC) signal 100 Hz, 625-line (PAL) signal

DCTI/DLTI (digital color/luminance transient improvement) Digital brightness, contrast, hue, and saturation control Digital luminance peaking Programmable gamma correction Black level expansion

Copy Protection

Scaling Engine

Independent horizontal and vertical scaling Programmable scaling ratios 4:3<–>16:9 aspect ratio conversion Square/non-square pixel support

Macrovision anticopy facility (version 7.1) CGMS (Copy Generation Management System)

System Information Built-in memory controller 2MB to 8MB of x16 SDRAM Two-wire serial interface

Applications

Flat-Panel (LCD, DLP) TVs Progressive Scan DVD Players Progressive Scan CRT TVs Digital TVs LCD Multimedia Monitors Multimedia Projectors Video Video Decoder

Crystal

PW1235

Digital Output Analog Output

PW1235 System Block Diagram

SDRAM

Preliminary– Confidential

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