CH7016A

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Features


  • VGA to SDTV conversion supporting graphics resolutions up to 1024x768

  • Analog YPrPb output for HDTV

  • HDTV support for 480p, 576p, 720p, 1080i and 1080p

  • Programmable digital input interface supporting RGB and YCrCb input data formats

  • True scale rendering engine supports under-scan in all TV output resolutions

  • Text enhancement filter

  • Adaptive flicker filter with up to 7 lines of filtering

  • Interlaced to progressive scan conversion for DVD

  • Support for NTSC, PAL and HDTV formats

  • Support for SCART connector

  • Outputs CVBS, S-Video, RGB and YPrPb

  • Support for Wide Screen Signaling (WSS)

  • TV / Monitor connection detect

  • Programmable power management

  • Four 10-bit video DAC outputs

  • Fully programmable through serial port

  • Complete Windows and DOS driver support

  • Low voltage interface support to graphics device

  • Offered in a 48-pin LQFP package

Describe

The CH7016A is a Display Controller device which accepts a digital graphics input signal, and encodes and transmits data through a 10-bit high speed DAC. The device is able to encode the video signals and generate synchronization signals for NTSC and PAL TV standards (SDTV), as well as analog HDTV interface standards and graphics standards up to UXGA. The device accepts data over one 12-bit wide variable voltage data port which supports 5 different data formats including RGB and YCrCb.

The TV-Out processor will perform non-interlace to interlace conversion with scaling and flicker filter, and encode data into any of the NTSC or PAL video standards. The scaling and flicker filter is adaptive and programmable to enable superior text display. Eight graphics resolutions are supported up to 1024 by 768 with full vertical and horizontal under-scan capability in all modes. A high accuracy low jitter phase locked loop is integrated to create outstanding video quality. ITU-R BT.656 interlaced video can also be input and scan converted to non-interlaced video.

In addition to TV encoder modes, bypass modes are included which perform color space conversion to HDTV standards and generate and insert HDTV sync signals, or output VGA style analog RGB for use as a CRT DAC.

Structure diagram

Application Desc


  •   Crystal Oscillator, AN-06.pdf (50 KB, 7/26/01)

  •   PCB Layout and Design Considerations for HDTV/SDTV Output Device, AN-56.pdf (198 KB)

Technical Report

  •   Input/Output Timing Diagram of CH7015 TV Encoders, TB-29.pdf (27 KB)

  •   Explanation for the Flickering Display Using Multi-sync TV in PAL Modes, TB-34.pdf (17 KB, 5/8/01)

  •   Low color-burst explanation, TB-39.pdf (9/25/02)

  •   PCB Design Considerations of DAC outputs with Multiple Video Formats, TB-45.pdf.

Specifications

Input Interface   DVO , TTL/Digital RGB, TTL/YCbCr

Output Interface  CVBS , S-Video, SCART

Audio Interface    No

Other features   Scaler, Line Buffer

Package   TypeLQFP48

OrderInfo

Part Number Package TypeNumber of PinsVoltage SupplyPackaging

CH7016A-DF  Lead Free - LQFP483.3VTray

CH7016A-DF-TR Lead Free - LQFP483.3VTape & Reel

Video

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About Chrontel Overview Chrontel, headquartered in San Jose, California, is a privately-held company with over 130 employees worldwide. Incorporated in 1986, the company develops and markets mixed-signal integrated circuits for the PC, display and consumer mark...

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