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Low-Cost 4x4, 8x4, 8x8 Video Crosspoint Switches

Product Details

Key Features

Parametric specs for Video Muxes and Crosspoints (Buffered)
Inputs 4
Outputs 4
BW (MHz) (@ -3dB) 35
VSUPPLY (±V) (Dual) 5
Slew Rate (V/µs) 250
Diff. Phase/ Gain (deg/%) 1.0/0.5
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (W)/24
SSOP/36
Budgetary
Price (See Notes)
10.98
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Simplified Block Diagram

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Parameters

Parametric specs for Video Muxes and Crosspoints (Buffered)
Inputs 4
Outputs 4
BW (MHz) (@ -3dB) 35
VSUPPLY (±V) (Dual) 5
Slew Rate (V/µs) 250
Diff. Phase/ Gain (deg/%) 1.0/0.5
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (W)/24
SSOP/36
Budgetary
Price (See Notes)
10.98

Key Features

  • Eight (MAX4456) or Four (MAX4359/MAX4360) Internal Buffers
    • 250V/µs Slew Rate
    • Three-State Output Capability
    • Power-Saving Disable Feature
    • 65MHz -3dB Bandwidth
  • Routes Any Input Channel to Any Output Channel
  • Serial or Parallel Digital Interface
  • Expandable for Larger Switch Matrices
  • 80dB All-Channel Off-Isolation at 5MHz
  • 70dB Single-Channel Crosstalk
  • Straight-Through Pinouts Simplify Layout
  • Low-Cost Pin-Compatible Alternative to MAX456 (MAX4456)

Applications/Uses

  • High-Speed Signal Routing
  • Security Systems
  • Video Conferencing
  • Video Test Equipment
  • Video-on-Demand Systems

Description

The MAX4359/MAX4360/MAX4456 low-cost video crosspoint switches are designed to reduce component count, board space, design time, and system cost. Each contains a matrix of T-switches that connect any of their four (MAX4359) or eight (MAX4360/MAX4456) video inputs to any of their buffered outputs, in any combination. Each matrix output is buffered by an internal, high-speed (250V/µs), unity-gain amplifier that is capable of driving 400Ω and 20pF at 2.6VP-P. For applications requiring increased drive capability, buffer the MAX4359/MAX4360/MAX4456 outputs with the MAX4395 quad, operational amplifier.

The MAX4456 has a digitally controlled 8x8 switch matrix and is a low-cost pin-for-pin compatible alternative to the popular MAX456. The MAX4359/MAX4360 are similar to the MAX4456, with the 8x8 switch matrix replaced by a 4x4 (MAX4359) or an 8x4 (MAX4360) switch matrix.

Three-state output capability and internal, programmable active loads make it feasible to parallel multiple devices to form larger switch arrays. The inputs and outputs are on opposite sides, and a quiet power supply or digital input line separates each channel, which reduces crosstalk to -70dB at 5MHz. For applications demanding better DC specifications, see the MAX456 8x8 video crosspoint switch.

Simplified Block Diagram

MAX4359, MAX4360, MAX4456: Typical Operating Circuit MAX4359, MAX4360, MAX4456: Typical Operating Circuit Zoom icon

Technical Docs

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.