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SAF7118 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. SAF7118
Description  Multistandard video decoder with adaptive comb filter and component video input
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 3 page
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2004 Jul 22
3
Philips Semiconductors
Product specification
Multistandard video decoder with adaptive
comb filter and component video input
SAF7118
1
FEATURES
1.1
Video acquisition/clock
• Up to sixteen analog CVBS, split as desired (all of the
CVBS inputs optionally can be used to convert e.g.
Vestigial Side Band (VSB) signals)
• Up to eight analog Y + C inputs, split as desired
• Up to four analog component inputs, with embedded or
separate sync, split as desired
• Four on-chip anti-aliasing filters in front of the
Analog-to-Digital Converters (ADCs)
• Automatic Clamp Control (ACC) for CVBS, Y and C
(or VSB) and component signals
• Switchable white peak control
• Four 9-bit low noise CMOS ADCs running at twice the
oversampling rate (27 MHz)
• Fully programmable static gain or Automatic Gain
Control (AGC), matching to the particular signal
properties
• On-chip line-locked clock generation in accordance with
“ITU 601”
• Requires only one crystal (32.11 or 24.576 MHz) for all
standards
• Horizontal and vertical sync detection.
1.2
Video decoder
• Digital PLL for synchronization and clock generation
from all standards and non-standard video sources e.g.
consumer grade VTR
• Automatic detection of any supported colour standard
• Luminance and chrominance signal processing for
PAL B, G, D, H, I and N, combination PAL N, PAL M,
NTSC M, NTSC-Japan, NTSC 4.43 and SECAM
• Adaptive 2/4-line comb filter for two dimensional
chrominance/luminance separation, also with VTR
signals
– Increased luminance and chrominance bandwidth for
all PAL and NTSC standards
– Reduced cross colour and cross luminance artefacts
• PAL delay line for correcting PAL phase errors
• Brightness Contrast Saturation (BCS) adjustment,
separately for composite and baseband signals
• User programmable sharpness control
• Detection of copy-protected signals according to the
Macrovision
(1) standard, indicating level of protection
• Independent gain and offset adjustment for raw data
path.
1.3
Component video processing
• RGB component inputs
• Y-P
B-PR component inputs
• Fast blanking between CVBS and synchronous
component inputs
• Digital RGB to Y-C
B-CR matrix.
1.4
Video scaler
• Horizontal and vertical downscaling and upscaling to
randomly sized windows
• Horizontal and vertical scaling range: variable zoom to
1
64 (icon) (it should be noted that the H and V zoom are
restricted by the transfer data rates)
• Anti-alias and accumulating filter for horizontal scaling
• Vertical scaling with linear phase interpolation and
accumulating filter for anti-aliasing (6-bit phase
accuracy)
• Horizontal phase correct up and downscaling for
improved signal quality of scaled data, especially for
compression and video phone applications, with 6-bit
phase accuracy (1.2 ns step width)
• Two independent programming sets for scaler part, to
define two ‘ranges’ per field or sequences over frames
• Fieldwise switching between decoder part and
expansion port (X port) input
• Brightness, contrast and saturation controls for scaled
outputs.
1.5
Vertical Blanking Interval (VBI) data decoder
and slicer
• Versatile VBI data decoder, slicer, clock regeneration
and byte synchronization e.g. for World Standard
Teletext (WST), North American Broadcast Text System
(NABTS), closed caption, Wide Screen Signalling
(WSS), etc.
(1) Macrovision
 is a registered trademark of the Macrovision
Corporation.




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