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ST92195D Datasheet(PDF) 165 Page - STMicroelectronics |
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ST92195D Datasheet(HTML) 165 Page - STMicroelectronics |
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165 / 249 page  165/249 ST92195C/D - VPS & WSS SLICER 7.8 VPS & WSS SLICER 7.8.1 Introduction The VPS/WSS digital sections perform several functions: s Separate the horizontal and vertical sync signals s Determine the field and line information (in conjunction with the Sync Extractor) s Process the data stream s Generate timing and windows for datastream information extraction s Load data into the registers and report any bi- phase errors found on any bytes (each word of information has an error report to help increase performance, especially during weak signals) Figure 92. VPS/WSS Block Diagram n PLL + Comparator Data Data CK @5MHz Shift Register Check Start Code Wss Window Vps Window VPS-WSS End Word Check Biphase Word Start Code valid Error Biphase VPS REGISTER WSS REGISTER Vps Word Wss Word VSync VPS WSS VR02093A (CVBS2) VPS (from CVBS1) |
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