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TVP70025I Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
Texas Instruments TI
TVP70025I Datasheet PDF : TVP70025I pdf   
TVP70025I image

The TVP70025I is a complete solution for digitizing video and graphic signals in RGB or YPbPr color spaces. The device supports pixel rates up to 90 MHz. Therefore, it can be used for PC graphics digitizing up to WXGA (1440 × 900) resolution at a 60-Hz screen refresh rate, and in video environments for the digitizing of digital TV formats, including HDTV up to 1080i.
The TVP70025I is powered from 3.3-V and 1.8-V supply and integrates a triple high-performance analog-to-digital (A/D) converter with clamping functions and variable gain, independently programmable for each channel. The clamp timing window is provided by an external pulse or can be generated internally. The TVP70025I includes analog slicing circuitry on the SOG inputs to support sync-on-luminance or sync-on-green extraction. In addition, TVP70025I can extract discrete HSYNC and VSYNC from composite sync using a sync slicer.
The TVP70025I also contains a complete horizontal phase-locked loop (PLL) block to generate a pixel clock from the HSYNC input. Pixel clock output frequencies range from 9 MHz to 90 MHz.
All programming of the device is done via an industry-standard I2C interface, which supports both reading and writing of register settings. The TVP70025I is available in a space-saving 100-pin TQFP PowerPAD package.

• Analog Channels
   – –6-dB to 6-dB Analog Gain
   – Analog Input Multiplexers (MUXs)
   – Automatic Video Clamp
   – Three Digitizing Channels, Each With
      Independently Controllable Clamp, Gain,
      Offset, and Analog-to-Digital Converter
   – Clamping: Selectable Clamping Between
      Bottom Level and Mid Level
   – Offset: 1024-Step Programmable RGB or
      YPbPr Offset Control
   – Gain: 8-Bit Programmable Gain Control
   – ADC: 10-Bit 90-MSPS A/D Converter
   – Automatic Level Control (ALC) Circuit
   – Composite Sync: Integrated Sync-on-Green
      Extraction From Green/Luminance Channel
   – Support for DC- and AC-Coupled Input
   – Programmable Video Bandwidth Control
   – Supports Component Video Standards 480i,
      576i, 480p, 576p, 720p, and 1080i
   – Supports PC Graphics Inputs up to 90 MSPS
   – Programmable RGB-to-YCbCr Color Space Conversion
• Horizontal Phase-Locked Loop (PLL)
   – Fully Integrated Horizontal PLL for Pixel
      Clock Generation
   – 9-MHz to 90-MHz Pixel Clock Generation
      From HSYNC Input
   – Adjustable Horizontal PLL Loop Bandwidth
      for Minimum Jitter
   – 5-Bit Programmable Subpixel Accurate
      Positioning of Sampling Phase
• Output Formatter
   – Supports 20-bit 4:2:2 Outputs With
      Embedded Syncs
   – Support for RGB/YCbCr 4:4:4 and YCbCr
      4:2:2 Output Modes to Reduce Board
   – Dedicated DATACLK Output With
      Programmable Output Polarity for Easy
      Latching of Output Data
• System
   – Industry-Standard Normal/Fast I2C Interface
      With Register Readback Capability
   – Space-Saving 100-Pin TQFP Package
   – Thermally-Enhanced PowerPAD™ Package
      for Better Heat Dissipation
   – Industrial Temperature Range –40°C to 85°C

• LCD TV/Monitors/Projectors
• DLP TV/Projectors
• PDP TV/Monitors
• LCOS TV/Monitors
• PCTV Set-Top Boxes
• Digital Image Processing
• Video Capture/Video Editing
• Scan Rate/Image Resolution Converters
• Video Conferencing
• Video/Graphics Digitizing Equipment

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