描述 Description

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

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