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

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 document-pdfAcrobat PDF
Clock generators

LMH19833G/HD/SD video clock generator with audio clock

Data sheet document-pdfAcrobat PDF open-in-new HTML
Serial digital interface (SDI) ICs

LMH03023G HD/SD SDI cable driver

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development


Evaluation board

SD1983EVK/NOPB – SD1983EVK Evaluation Kit

The LMH1983 Evaluation Kit (SD1983EVK) allows for the evaluation of the LMH1983 3G/HD/SD Video Clock Generator with Audio Clock. The LMH1983 device is configured and controlled using TI's Analog Launch Pad (ALP) software graphical user interface (GUI).

The LMH1983 is supported on the board with an (...)

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Technical documentation

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

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