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8x8 Crosspoint Video Switch

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet 8x8 Crosspoint Video Switch Feb 01, 1994

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Sampling:
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Key Features

  • Routes Any Input Channel to Any Output Channel
  • Switches Standard Video Signals
  • Serial or Parallel Digital Interface
  • Expandable for Larger Switch Matrices
  • 80dB All-Channel Off Isolation at 5MHz
  • 8 Internal Buffers with:
    • 250V/µs Slew Rate, Three-State Output Capability,
    • Power-Saving Disable Feature, 35MHz Bandwidth

Applications/Uses

  • Video Editing
  • Video Security Systems
  • Video Test Equipment

Description

The MAX456 is the first monolithic CMOS 8 x 8 video crosspoint switch that significantly reduces component count, board space, and cost. The crosspoint switch contains a digitally controlled matrix of 64 T-switches that connect eight video input signals to any, or all, output channels. Each matrix output connects to eight internal, high-speed (250V/µs), unity-gain-stable buffers capable of driving 400Ω and 20pF to ±1.3V. For applications requiring increased drive capability, the MAX456 outputs can be connected directly to two MAX470 quad, gain-of-two video buffers, which are capable of driving 75Ω loads.

Three-state output capability and internal, programmable active loads make it feasible to parallel multiple MAX456s and form larger switch matrices.

In the 40-pin DIP package, crosstalk (70dB at 5MHz) is minimized, and board area and complexity are simplified by using a straight-through pinout. The analog inputs and outputs are on opposite sides, and each channel is separated by a power-supply line or quiet digital logic line.

Simplified Block Diagram

MAX456: Typical Application Circuit MAX456: Typical Application Circuit Zoom icon

Technical Docs

Data Sheet 8x8 Crosspoint Video Switch Feb 01, 1994

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.