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ADV7182WBCPZ-RL Scheda tecnica(PDF) 4 Page - Analog Devices |
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ADV7182WBCPZ-RL Scheda tecnica(HTML) 4 Page - Analog Devices |
4 / 96 page ADV7182 Data Sheet Rev. A | Page 4 of 96 OVERVIEW OF THE STANDARD DEFINITION PROCESSOR The ADV7182 is capable of decoding a large selection of baseband video signals in composite (both single-ended and differential), S-Video, and component formats. The video standards supported by the video processor include PAL B/PAL D/PAL I/PAL G/PAL H, PAL 60, PAL M, PAL N, PAL Nc, NTSC M/NTSC J, NTSC 4.43, and SECAM B/SECAM D/SECAM G/SECAM K/SECAM L. The ADV7182 can automatically detect the video standard and process it accordingly. The ADV7182 has a five-line, superadaptive, 2D comb filter that gives superior chrominance and luminance separation when decoding a composite video signal. This highly adaptive filter automatically adjusts its processing mode according to the video standard and signal quality without requiring user intervention. Video user controls such as brightness, contrast, saturation, and hue are also available with the ADV7182. The ADV7182 implements a patented ADLLT™ algorithm to track varying video line lengths from sources such as a VCR. ADLLT enables the ADV7182 to track and decode poor quality video sources such as VCRs and noisy sources from tuner outputs, VCD players, and camcorders. The ADV7182 contains a chroma transient improvement (CTI) processor that sharpens the edge rate of chroma transitions, resulting in sharper vertical transitions. The ACE offers improved visual detail using an algorithm that automatically varies contrast levels to enhance picture detail. This enables the contrast in dark areas of an image to be increased without saturating the bright areas of an image. This is particularly useful in automotive applications, where it can be important to be able to discern objects in shaded areas. Down dithering from eight bits to six bits enables ease of design for standard LCD panels. The video processor can process a variety of VBI data services, such as closed captioning (CCAP), wide screen signaling (WSS), copy generation management system (CGMS), and teletext data slicing for world standard teletext (WST). Data is transmitted via the 8-bit video output port as ancillary data packets (ANC). The ADV7182 is fully Macrovision® certified; detection circuitry enables Type I, Type II, and Type III protection levels to be identified and reported to the user. The decoder is also fully robust to all Macrovision signal inputs. |
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