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Maxim产品 - MAX4548介绍

MAX4548 - 串行控制、三组3x2音频/视频交叉点开关

MAX4548是Maxim美信半导体公司的一款模拟开关和复用器产品，MAX4548是串行控制、三组3x2音频/视频交叉点开关，本站介绍了MAX4548的封装应用图解、特点和优点、功能等，并给出了与MAX4548相关的Maxim元器件型号供参考。

MAX4548 - 串行控制、三组3x2音频/视频交叉点开关 - 模拟开关和复用器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX4548/MAX4549 serial-interface, programmable, triple 3x2 audio/video crosspoint switches are ideal for multimedia applications. The devices include three crosspoint switch matrices, each containing three inputs and two outputs. To improve off-isolation, each switch matrix has a shunt input and each output is selectively programmable for clickless or regular-mode operation. A selectable set of internal resistive voltage dividers supplies DC bias for each output when using AC-coupled inputs. To improve crosstalk, the voltage dividers include four externally accessible bypass points.

The MAX4548/MAX4549 feature 35Ω max on-resistance, 7Ω on-resistance matching between channels, 5Ω on-resistance flatness, and 0.07% total harmonic distortion (THD). Additionally, they feature off-isolation of -85dB at 20kHz and -72dB at 10MHz, with crosstalk of -85dB at 20kHz and -55dB at 10MHz. The MAX4548 uses a 2-wire I²-compatible serial interface, while the MAX4549 uses a 3-wire SPI™/QSPI™/MICROWIRE™-compatible serial interface. These parts are available in 36-pin SSOP packages and are specified for the extended (-40°C to +85°C) operating range.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Selectable Soft-Switching Mode for "Clickless" Audio Operation
  • 22Ω Typical On-Resistance (+5V Supply)
  • 5Ω Typical On-Resistance Matching Between Channels
  • 2Ω Typical On-Resistance Flatness
  • Audio Performance
  • -85dB Off-Isolation at 20kHz
  • -85dB Crosstalk at 20kHz
  • 0.07% THD with 600Ω Load
  • Video Performance
  • -72dB Off-Isolation at 10MHz
  • -55dB Crosstalk at 10MHz
  • Serial Interface
  • 2-Wire I²C-Compatible (MAX4548)
  • 3-Wire SPI/QSPI/MICROWIRE-Compatible (MAX4549)
  • Single-Supply Operation from +2.7V to +5.5V
    • 热门应用
  • 高端音频系统
  • PC多媒体板
  • 安全系统
  • 机顶盒
  • 视频会议系统
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