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ADV7182WBCPZ-RL View Datasheet(PDF) - Analog Devices

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ADV7182WBCPZ-RL Datasheet PDF : 96 Pages
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ADV7182
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,
Data Sheet
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.
Rev. A | Page 4 of 96
 

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