MAX4357

32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers

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Status Explanations for product status codes

Active: In Production.

Description

The MAX4357 is a 32 x 16 highly integrated video crosspoint switch matrix with input and output buffers. This device operates from dual ±3V to ±5V supplies or from a single +5V supply. Digital logic is supplied from an independent single +2.7V to +5.5V supply. All inputs and outputs are buffered, with all outputs able to drive standard 75Ω reverse-terminated video loads.

The switch matrix configuration and output buffer gain are programmed through an SPI™/QSPI™-compatible, three-wire serial interface and initialized with a single update signal. The unique serial interface operates in two modes facilitating both fast updates and initialization. On power-up, all outputs are initialized in the disabled state to avoid output conflicts in large-array configurations.

Superior flexibility, high integration, and space-saving packaging make this nonblocking switch matrix ideal for routing video signals in security and video-on-demand systems.

The MAX4357 is available in a 128-pin TQFP package and specified over an extended -40°C to +85°C temperature range.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 824kB)
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Key Features

  • 32 x 16 Nonblocking Matrix with Buffered Inputs and Outputs
  • Operates from a ±3V, ±5V, or +5V Supply
  • Each Output Individually Addressable
  • Individually Programmable Output Buffer Gain (AV = +1V/V or +2V/V)
  • High-Impedance Output Disable for Wired-OR Connections
  • 0.1dB Gain Flatness to 12MHz
  • Minimum -62dB Crosstalk, -110dB Isolation at 6MHz
  • 0.05%/0.1° Differential Gain/Differential Phase Error
  • Low 220mW Power Consumption (0.43mW per Point)
 

Applications/Uses

  • Security Systems
  • Video Routing and Switching Systems
  • Video-on-Demand Systems
   

Key Specifications:

Video Muxes and Crosspoints (Buffered)
Part Number Inputs Outputs BW
(MHz)
BW
(MHz)
VSUPPLY
(V)
VSUPPLY
(±V)
Slew Rate
(V/µs)
Diff. Phase/ Gain
(deg/%)
Off Iso.
(dB)
Crosstalk
(dB)
AV
(V/V)
Budgetary Price
@ -3dB 0.1dB min Single Dual typ typ See Notes
MAX4357  32 16 110 14 5
3
5
150 0.02/0.12 -110 -62
1
2
$51.49 @1k
See All Video Muxes and Crosspoints (Buffered) (19)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX4357: Typical Operating Circuit
Typical Operating Circuit

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Information Index

Document Ref.: 19-2209 Rev 1; 2010-03-11
This page last modified: 2010-03-11




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