Serially Controlled, Clickless Audio/Video Switches

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The MAX4571–MAX4574 serial-interface controlled switches are ideal for multimedia applications. Each device features 35Ω max on-resistance, -90dB audio off-isolation at 20kHz, -60dB video off-isolation at 1.0MHz, and "clickless" mode operation for audio applications.

The MAX4571/MAX4573 contain eleven SPST switches, while the MAX4572/MAX4574 contain two SPST switches and six SPDT switches. The MAX4571/MAX4572 feature a 2-wire, I2C-compatible serial interface. The MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/MICROWIRE™-compatible serial interface. All four parts are available in 28-pin QSOP, SSOP, and wide SO packages and operate over the commercial and extended temperature ranges.
MAX4571, MAX4573: Pin Configuration MAX4571, MAX4573: Pin Configuration Enlarge+

Key Features

  • Selectable Soft Switching Mode for "Clickless" Audio Operation
  • 35Ω max On-Resistance
  • -90dB Audio Off-Isolation at 20kHz
  • -50dB Video Off-Isolation at 10MHz
  • -90dB Audio Crosstalk at 20kHz
  • -52dB Video Crosstalk at 10MHz
  • Serial Interface
    • 2-Wire, Fast-Mode, I²C-Compatible (MAX4571/72)
    • 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4573/74)
  • Single-Supply Operation from +2.7V to +5.25V


  • Audio Systems
  • PC Multimedia Boards
  • Set-Top Boxes
  • Video Conferencing Systems
Request Reliability Report for: MAX4571 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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