SPCA711A

SPCA711A DIGITAL VIDEO ENCODER FOR VIDEOCD GENERAL DESCRIPTION The SPCA711A is designed specifically for VideoCD, video games and other digital video systems, which require the conversion of digital YCrCb (MPEG) data to analog NTSC/PAL video. less interface to most popular MPEG decoders. The device supports a glue- The SPCA711A supports worldwide video standards, including NTSC (N America, Japan) PAL-B, D, G, H, I (Europe, Asia), PAL-M (Brazil), PAL-N (Uruguay, Paraguay), and PAL-Nc (Argentina). single 3.3V supply. Furthermore, the SPCA711A operates with a single 2x clock and can be powered with a The composite analog video signal is output simultaneously onto two outputs. Therefore, it allows one output to provide base-band composite video while the other drives a RF modulator. Alternatively, As a analog luminance (Y) and chrominance (C) information is available for interfacing to S-video equipment. slave, the SPCA711A automatically detects the input data formats (PAL/NTSC, CCIR601) and switches internally to provide the proper format on the outputs. This feature, along with the on-board voltage reference In addition, use of 2x over-sampling and single clock interface, makes the SPCA711A extremely simple to use. on-chip simplifies external filter design resulting in reduced overall system cost. FEATURES ! 8-bit 4:2:2 YCrCb inputs for glue-less interface to MPEG decoders ! NTSC/PAL/PAL-M/PAL-Nc composite video outputs BLOCK DIAGRAM VBIAS VREFOUT FSADJUST CLK ! CVB...