MAX456中文资料8x8交叉点视频开关数据手册ADI规格书

描述 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.

特性 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

应用 Application

• 视频编辑
• 视频安全系统
• 视频测试设备

简介

MAX456属于集成电路（IC）的模拟开关-特殊用途。由制造生产的MAX456模拟开关 - 特殊用途特殊用途模拟开关通过固态设备路由模拟信号。该系列产品的与众不同之处在于，这些模拟开关针对特定的应用，因此具有通用模拟开关通常所没有的独特功能。