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Graphics Video Sync Adder/Extractor

Complete Chipset for Addition and Extraction of Sync to Allow 3-Wire Transport of 5-Wire RGBHV Signals

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Graphics Video Sync Adder/Extractor Feb 12, 2007

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Sampling:
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Key Features

  • 3-Wire RGB to 5-Wire RGBHV Interface
  • Supports VGA-to-UXGA Resolution
  • Low Offset Voltage (±1mV)
  • 180MHz Large-Signal Bandwidth

Applications/Uses

  • Enterprise Class (Blade) Servers
  • Keyboard-Video-Mouse (KVM)
  • Laptop PCs
  • Web Appliances

Description

The MAX9539/MAX9540 chipset provides a 3-wire (RGB) interface for 5-wire (RGBHV) video by adding and extracting the H, V, and composite sync from the graphics video signals. This chipset eliminates the problem of sync-to-video timing (skew errors) in a 5-wire interface, while reducing the number of channels required to transport video signals.

The MAX9539 mixes the H and V sync signals and adds them to create a 3-wire interface from a 5-wire (RGBHV) input. The MAX9540 recovers the H and V sync signals to create a 5-wire (RGBHV) interface from the 3-wire input. The MAX9540 also provides a composite sync output.

The chipset includes the MAX9539 sync adder and the MAX9540 sync extractor with 180MHz large-signal bandwidths to address display resolutions up to 1600 x 1200 at 85Hz for VGA-to-UXGA applications. Both devices feature a DC restore function, which virtually eliminates any changes in black level. The chipset uses a proprietary H and V sync addition/extraction scheme (true sync) to minimize skew errors.

The MAX9539/MAX9540 are available in 28-pin TSSOP packages and are specified over the extended -40°C to +85°C temperature range.

Simplified Block Diagram

MAX9539, MAX9540: Typical Application Diagram MAX9539, MAX9540: Typical Application Diagram Zoom icon

Technical Docs

Data Sheet Graphics Video Sync Adder/Extractor Feb 12, 2007

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.