Video Sync and Video Clock Generation and Distribution Reference Design


Design files


A video clock sub-system designed to perform video sync separation and derives synchronous video clocks for video and audio sub-systems.

  • Sync separation from incoming video signal
  • Precision clock generation synchronous to the incoming video signal
  • Multiple PLL's to generate video clocks at 27MHz, 148.5MHz, 148.35MHz, and audio clock at 24.576MHz
  • Clock distribution with output drivers
  • Self-contained video clock sub-system
  • Proven design with demo board, design files and GUI
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU864.PDF (473 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRDK5.ZIP (1167 K)

Files used for 3D models or 2D drawings of IC components

TIDC986.ZIP (290 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Clock generators

LMH1981Multi-format video sync separator

Data sheet: PDF
Clock generators

LMH19833G/HD/SD video clock generator with audio clock

Data sheet: PDF | HTML
Serial digital interface (SDI) ICs

LMH03023G HD/SD SDI cable driver

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report TIDA-00424 Test Results Mar. 20, 2015

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