ADV7175A
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ADV7175A

Digital Video Encoder with Macrovision with Anticopy Circuitry

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Features
  • ITU-R BT601/656 YCrCb to PAL/NTSC Video Encoder
  • High Quality 10-Bit Video DACs
  • Integral Nonlinearity <1 LSB at 10 Bits
  • NTSC-M, PAL-M/N, PAL-B/D/G/H/I
  • Single 27 MHz Clock Required (×2 Oversampling)
  • 80 dB Video SNR
  • 32-Bit Direct Digital Synthesizer for Color Subcarrier
  • Multistandard Video Output Support:
    Composite (CVBS)
    Component S-Video (Y/C)
    Component YUV and RGB
    EuroSCART Output (RGB + CVBS/LUMA)
  • Video Input Data Port Supports:
    CCIR-656 4:2:2 8-Bit Parallel Input Format
    4:2:2 16-Bit Parallel Input Format
  • Full Video Output Drive or Low Signal Drive Capability
    34.7 mA max into 37.5 Ω (Doubly-Terminated 75R)
    5 mA min with External Buffers
  • Programmable Simultaneous Composite and S-Video Y/C or RGB (SCART)/YUV Video Outputs
  • Programmable Luma Filters (Low-Pass/Notch/Extended)
Additional Details
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The ADV7175A/ADV7176A is an integrated digital video encoder that converts Digital CCIR-601 4:2:2 8 or 16-bit component video data into a standard analog baseband television signal compatible with worldwide standards. The 4:2:2 YUV video data is interpolated to two times the pixel rate. The color-difference components (UV) are quadrature modulated using a subcarrier frequency generated by an on-chip 32-bit digital synthesizer (also running at two times the pixel rate). The two times pixel rate sampling allows for better signal-to-noise- ratio. A 32-bit DDS with a 10-bit look-up table produces a superior subcarrier in terms of both frequency and phase. In addition to the composite output signal, there is the facility to output S-Video (Y/C) video, YUV or RGB video. The Y/C, YUV or RGB format is simultaneously available at the analog outputs with the composite video signal.

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