The S1D13746 is an extremely low cost, low pin number device that directly supports television via standard memory mapped frame buffering. The internal high quality scaling algorithm allows low-resolution inputs to be smoothly scaled to full resolution as determined by PAL or NTSC standards. The S1D13746 is the ideal solution for the mobile phone market requiring TV output.
The S1D13746 contains 312K bytes of embedded SRAM. Input data can be doubly buffered, thus acting as a frame rate converter and preventing any visual tearing during stream input. The minimal feature set and high integration (embedded high-output Dacs) provide low-cost, low-power single-chip solutions to meet the embedded market's needs for digital video, such as mobile communication devices.
Features
● Embedded 312K byte SRAM
● Double-buffered for streaming video
● Low Operating Voltage
● Serial/Parallel Host Interface
● Parallel RGB Interface
● Multiple Input Data formats
● High Output DAC
● Input Image Rotation (SwivelView™ 90/180/270°)
● Bi-Cubic Scalar from input to output
● PAL and NTSC output
● Automatic Border
● Auto-Centering
● Destructive Windows (Overlays) with transparency function
● Software Initiated Power Save Mode
● Internal PLL or Digital Clock Input
Working principle
The S1D13746 contains its own frame buffer memory where image data can be stored and displayed. The input image is larger than the memory size and is automatically shrunk using the double-cube method before storage. All images can be stored using a dual buffering architecture to prevent any visual tearing and act as a rate converter. All the stored images can be further enlarged/shrunk to display on the TV.
If the resulting scaled image does not meet the maximum resolution defined by the TV standard, the image is automatically centered and framed. A 3x3 pixel filter and programmable chrominance/brightness filter are provided to generate high quality resulting images. The S1D13746 supports widescreen signals, closed captioning, includes a built-in test pattern generator, and has a binding option available for Macrovision protection
