[Brooktree]

YCrCb or RGB to NTSC/PAL Digital Video Encoder

The Bt856/7 is designed specifically for video systems requiring the generation of 525-line (NTSC/PAL–M) or 625-line (PAL–B, D, G, H, I, N, N-Argentina) compos ite or Y/C (S-video) signals.

The Bt856 and Bt857 are functionally identical, with the exception that Bt857 can output the Macrovision anticopy algorithm.

Distinguishing Features

• RGB or YCrCb Inputs, Selectable on a Pixel-by-Pixel Basis

• NTSC/PAL/PAL–M/PAL–N (Argentina) Composite Video Output

• S-Video/RGB Outputs Supported

• CCIR 601 or Square Pixel Operation

• 2x Oversampling

• 9-bit DACs

• Master or Slave Video Timing

• Noninterlaced Operation

• Macrovision Support (Bt857 Only)

• Closed Captioning Encoding

• Power-Down Mode

• SCART Support (RGB Outputs)

• I2C Interface

• On-Board Voltage Reference

• Internal Color Bar Generator

• 68-pin PLCC Package

Applications

• Digital Set Top Box

• Direct Broadcast Satellite (DBS)

• Digital Video Disk (DVD)

• Digital VCR

• VideoCD