MAX4550:串行控制、双路4x2、无喀嗒声的音频/视频模拟交叉点开关

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
  • 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
MAX4550、MAX4570:引脚配置
MAX4550、MAX4570:引脚配置
应用
  • 高端音频系统
  • PC多媒体板
  • 机顶盒
  • 视频会议系统
数据手册DataSheet
语言下载文件备注
英文MAX4550-MAX4570.pdfRev 0; 10/1998
关键参数
Part NumberFunctionsConfig.RON
(Ω)
InterfaceILEAK(OFF)
(nA)
tON
(ns)
Off Iso.
(dB)
Crosstalk
(dB)
VSUPPLY
(V)
VSUPPLY (Dual)
(±V)
Package/PinsBudgetary
Price
maxmaxmin@ Freq.@ Freq.DualSee Notes
MAX4550Crosspoint2 x 4-to-280
  • 2-Wire
  • Serial
10900-78@4MHz-54@4MHz2.7 to 5.52.7 to 5.5
  • SOIC(W)/28
  • SSOP/28
$5.32 @1k
MAX4570
  • 3-Wire
  • Serial
  • SOIC(W)/28
  • SSOP/28
$3.71 @1k
开发工具
质量和环境数据
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX4550CAI停止供货MAX4550CAI+SSOP,;28引脚;81.6mm²0°C至+70°C参考数据资料
MAX4550CAI+生产中SSOP,;28引脚;81.6mm²0°C至+70°CRoHS/无铅:无铅
MAX4550CAI+T生产中SSOP,;28引脚;81.6mm²0°C至+70°CRoHS/无铅:无铅
MAX4550CAI-T停止供货MAX4550CAI+TSSOP;28引脚0°C至+70°C参考数据资料
MAX4550CWI停止供货MAX4550CWI+SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:否
MAX4550CWI+生产中SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:无铅
MAX4550CWI+T生产中SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:无铅
MAX4550CWI-T停止供货MAX4550CWI+TW.SO;28引脚0°C至+70°C参考数据资料
MAX4550EAI停止供货SSOP,;28引脚;81.6mm²-40°C至+85°C参考数据资料
MAX4550EAI-T停止供货SSOP;28引脚-40°C至+85°C参考数据资料
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX4550EEI停止供货-40°C至+85°C参考数据资料
MAX4550EWI停止供货MAX4550EWI+SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:否
MAX4550EWI+生产中SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX4550EWI+T生产中SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX4550EWI-T停止供货MAX4550EWI+TW.SO;28引脚-40°C至+85°C参考数据资料
MAX4550-MAX4570.pdf MAX4570
MAX4550.pdf MAX4550
MAX4550-MAX4570.pdf MAX4570