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Maxim产品 - MAX4570介绍

MAX4570 - 串行控制、双路4x2、无喀嗒声的音频/视频模拟交叉点开关

MAX4570是Maxim美信半导体公司的一款模拟开关和复用器产品，MAX4570是串行控制、双路4x2、无喀嗒声的音频/视频模拟交叉点开关，本站介绍了MAX4570的封装应用图解、特点和优点、功能等，并给出了与MAX4570相关的Maxim元器件型号供参考。

MAX4570 - 串行控制、双路4x2、无喀嗒声的音频/视频模拟交叉点开关 - 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 MAX4550/MAX4570 serial-interface, programmable, dual 4x2 audio/video crosspoint switches are ideal for multimedia applications. Each device contains two identical crosspoint switch arrays, each with four inputs and two outputs. To improve off-isolation, use the additional crosspoint inputs SA and SB as shunts. Each output is selectively programmable for clickless or regular mode operation. A set of internal resistive voltage-dividers supplies DC bias for each output when using AC-coupled inputs. Additionally, four auxiliary outputs control additional circuitry via the MAX4550/MAX4570's 2-wire or 3-wire interface.

The MAX4550/MAX4570 feature 80Ω on-resistance, 10Ω on-resistance matching between channels, 5Ω on-resistance flatness, and 0.014% total harmonic distortion. Additionally, they feature off-isolation of at least -110dB in the audio frequency range and -78dB at 4MHz, with -95dB crosstalk in the audio frequency range and -54dB at 4MHz. The MAX4550 uses a 2-wire I²C-compatible serial interface, while the MAX4570 uses a 3-wire SPI™/QSPI™ or MICROWIRE™-compatible serial interface. These parts are available in 28-pin SSOP and wide SO packages and are tested over either the commercial (0°C to +70°C) or extended (-40°C to +85°C) operating temperature 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
  • 43Ω Typical On-Resistance (±5V Supplies)
  • 5Ω Typical On-Resistance Matching Between Channels
  • 4Ω Typical On-Resistance Flatness
  • 0.014% Total Harmonic Distortion with 1kΩ Load
  • -110dB Off-Isolation at 20kHz
  • -78dB Off-Isolation at 4MHz
  • -95dB Crosstalk at 20kHz
  • -54dB Crosstalk at 4MHz
  • Serial Interface
  • 2-Wire, Fast-Mode, I²C-Compatible (MAX4550)
  • 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4570)
  • Four Auxiliary Outputs that Extend µP Ports
  • Single-Supply Operation: +2.7V to +5.5V
  • Dual-Supply Operation: ±2.7V to ±5.5V
    • 热门应用
  • 高端音频系统
  • PC多媒体板
  • 机顶盒
  • 视频会议系统
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