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TMC22071A Datasheet PDF - Cadeka Microcircuits LLC.

TMC22071A image

Part Name
TMC22071A

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page
24 Pages

File Size
204.7 kB

MFG CO.
CADEKA
Cadeka Microcircuits LLC. CADEKA

Description
The TMC22071A Genlocking Video Digitizer converts standard baseband composite NTSC or PAL video into 8-bit digital composite video data. It extracts horizontal and vertical sync signals and generates a pixel clock for the on-board 8-bit A/D converter and a 2x clock for the transfer of data to subsequent video processing decoding or encoding with the TMC22x5y Video Decoder or TMC22x9x Digital Video Encoder family. It also measures the color subcarrier phase and frequency and provides this data to the Encoder (for genlocked color NTSC or PAL encoding), or a frame buffer (for frame capture) over the digital composite video port.


FEATUREs
• Fully integrated acquisition
• 3-channel video input multiplexer
• Two-stage video clamp
• Automatic gain adjustment
• Sync detection and separation
• Pixel and subpixel adjustment of HSYNC-to-Video timing
• Genlock to NTSC or PAL inputs
• Clock generation
• 8-bit video A/D converter
• Microprocessor interface
• Line-locked pixel rates
    - 12.27 MHz NTSC
    - 13.5 MHz NTSC or PAL
• Direct interface to TMC22x9x encoders
• Built-in circuitry for crystal oscillator
• No tuning or external voltage reference required
• 68 Lead PLCC or 100 Lead MQFP package


APPLICATIONs
• Frame grabber
• Digital VCR/VTR
• Desktop video


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