MSM7661B Datasheet | OKI Electric

E2F0009-18-62 ¡ Semiconductor MSM7661B ¡ Semiconductor NTSC/PAL Digital Video Decoder This version: MSM7661B Jun. 1998 Pr el im in ar y GENERAL DESCRIPTION The MSM7661B is an LSI device which converts digitally sampled NTSC or PAL video signals to 8-bit format based on ITU-RBT601. The input video signals available are posite video signals and S video signals. The posite video signals are converted to YUV data via a 2-dimensional Y/C separation circuit. .. The A-to-D converted data is data sampled at pixel clock frequency or double pixel clock frequency (the built-in decimation filter is used). Input signal synchronization can lock synchronization and color burst at high speed through internal digital processing. The MSM7661B is upward patible with the MSM7661. It provides additional Features which are added to the MSM7661 indicated by the mark n and is superior to the MSM7661 in picture quality and synchronization stability. The device, which includes an additional register added to the MSM7661, has electrical characteristics which are nearly equal to those of the MSM7661. The MSM7661B allows a pin-for-pin replacement with the MSM7661. Features (- indicates a new feature pared with MSM7660. n indicates a new feature pared with MSM7661.) - Input video signals include the following two types of digital data that are A-to-D converted at pixel frequency or double pixel frequency : NTSC/PAL posite video signal NTSC/PAL S video signal ° 8-bit Y/8-bit C (Cb Cr) output (conforms to ITU-RBT601) YCb Cr 4:2:2 YCb C 4 : 1 : 1 n YCb Cr 8-bit multiplex output (27 MHz) (not including SAV and EAV) - 2-dimensional Y/C separation using adaptive b filter (this filter is bypassed for S video signal input) NTSC: 3 lines/2 lines PAL: 2 lines (3 virtual lines) - Input signal synchronization can lock synchronization and color burst at high speed through internal digital processing. ° Sampling frequency 13.5 MHz (ITU-R601) 12.27 MHz (NTSC Square...