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` Fig. 12 depicts several DDP applications. Since the DDP functions as a video back-end, it must be complemented with additional functionality to form a complete TV set.` The VPC 32xx family processes all worldwide analog video signals (including the European PALplus) and allows non-linear Panorama aspect ratio conversion. Thus, 4:3 and 16:9 systems can easily be configured by software. The aspect ratio scaling is also used as a sample rate converter to provide a line-locked digital component output bus (YCrCb) compliant to ITU-R-601. All video processing and line-locked clock/data generation is derived from a single 20.25-MHz crystal. An optional adaptive 2H/4H comb filter (VPC 32xx) performs Y/C separation for PAL and NTSC and all of their substandards.` The VPC 32xxD and the CIP 3250A provide a highquality analog RGB interface with character insertion capability. This allows appropriate processing of external sources such as MPEG 2 set-top boxes in transparent (4:2:2) quality. Furthermore, it translates RGB/ Fast-Blank signals to the common digital video bus and makes those signals available for 100-Hz processing. In some European countries (Italy), this feature is mandatory.` The IP indicates memory-based image processing, such as scan rate conversion, vertical processing (Zoom), or PAL+ reconstruction.
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` Video processing linear horizontal scaling (0.25 . 4) non-linear horizontal scaling "panoramavision" dynamic peaking soft limiter (gamma correction) color transient improvement programmable RGB matrix picture frame generator two analog RGB/Fast-Blank inputs` Deflection processing scan velocity modulation output high-performance H/V deflection EHT compensation for vertical / East/West soft start/stop of H-Drive vertical angle and bow differential vertical output vertical zoom via deflection horizontal and vertical protection circuit adjustable horizontal frequency for VGA/SVGA display` Miscellaneous selectable 4:1:1/4:2:2 YCrCb input selectable 27/32-MHz line-locked clock input crystal oscillator for horizontal protection automatic picture tube adjustment (cutoff, whitedrive) single 5-V power supply hardware for simple 50/60-Hz to 100/120-Hz conversion (display frequency doubling) two I2C-controlled PWM outputs beam current limiter
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Required Field 
