Video Decoder 4ADC 9-Bit 156-Pin LBGA Tray

The SAA7118 is a video capture device for applications at the image port of VGA controllers. Philips X-VIP is a new multistandard comb filter video decoder chip with additional component processing, providing high quality, optionally scaled, video. The SAA7118 is a combination of a four-channel analog preprocessing circuit including source selection, anti-aliasing filter and ADC with succeeding decimation filters from 27 to 13.5 MHz data rate. Each preprocessing channel comes with an automatic clamp and gain control. The SAA7118 combines a Clock Generation Circuit (CGC), a digital multistandard decoder containing two-dimensional chrominance/luminance separation by an adaptive comb filter and a high performance scaler, including variable horizontal and vertical up and downscaling and a brightness, contrast and saturation control circuit.

• 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.
• 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 standard, indicating level of protection
• Independent gain and offset adjustment for raw data path.
• RGB component inputs
• Y-PB-PR component inputs
• Fast blanking between CVBS and synchronous component inputs
• Digital RGB to Y-CB-CR matrix.
• Horizontal and vertical downscaling and upscaling to randomly sized windows
• Horizontal and vertical scaling range: variable zoom to 1/64 (icon) (note: H and V zoom are restricted by the transfer data rates)
• Anti-alias and accumulating filter for horizontal scaling