Multiport YCrCb to NTSC / PAL  / SECAM Digital Video Encoder

The Bt860/861 is a multiport digital video encoder with pixel synchronization and per-pixel blending capabilities. The three 8-bit YCrCb data ports allow for a variety of video and graphic overlay configurations useful in video set-top box applications. The Bt860/861 is specifically designed for video systems requiring composite, Y/C (S-Video), and simultaneous component YUV or RGB (SCART) video signals. Worldwide video standards are supported, including NTSC-M (N. America, Taiwan, Japan), PAL-B,D,G,H,I (Europe, Asia), PAL-M (Brazil), PAL-N (Uruguay, Paraguay),
PAL-Nc (Argentina), PAL-60, NTSC-443, and SECAM. The Bt860 and Bt861 are functionally identical except that the Bt861 can output the Macrovision 7.x anticopy algorithm.

Distinguishing Features
• Six 10-bit DACs with individual power management
• Simultaneous output of YUV, S-Video, and CVBS, or RGB (SCART), S-Video, and CVBS
• Current drive output DACs for superior video quality and reduced system cost
• Dynamic video load sensing for reduced power operation
• Three sharpness filter options (1,2,3.5 dB gain) and four reduction filter options
• Programmable adjustment of brightness, contrast, color saturation, and hue
• Glueless interface with a video decoder
• Three 8-bit YCrCb 4:2:2 inputs for overlay or blending
• ITU-R BT.656, ITU-R BT.601 digital video input options
• NTSC-M, PAL (B,D,G,H,I), PAL-M, PAL-N, NTSC-443, PAL-Nc, PAL-60 and SECAM video output
• 2x upsampling and internal filtering for reduced cost
• Master or slave video timing with programmable HSYNC* delay
• Interlaced/noninterlaced operation
• Macrovision 7.x copy protection (Bt861)
• Closed Captioning and Extended Data Services encoding
• Teletext encoding (WST system B)
• 400 kHz serial programming interface
• On-board voltage reference
• Reduced power modes
• Programmable luma delay (two channels)
• 3.3 V supply, 5 V-tolerant inputs
• Copy Generation Management System (CGMS) support
• VARIS-II and Wide Screen Signalling (WSS) multiple aspect ratio support
• Internal color bar generation
• Blue field generation
• 80-pin MQFP package

APPLICATIONs
• Digital cable television systems
• Satellite TV receivers (DBS/DVB/DSS)
• DVD players
• Video CD players
• Digital cameras
• PC add-on cards
• Video editing