Serially Controlled, Clickless Audio/Video Switches

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The MAX4562/MAX4563 serial-interface controlled switches are ideal for multimedia applications. Each device features 30Ω max on-resistance (RON), 5Ω RON match, and 5Ω RON flatness. Audio off-isolation and crosstalk at 20kHz is -85dB, and video off-isolation and crosstalk at 10MHz is -55dB. Both devices feature "clickless" mode operation for audio applications.

The MAX4562/MAX4563 contain two normally open single-pole/double-throw (SPDT) switches and two normally open single-pole/single-throw (SPST) switches. The MAX4562 features a 2-wire I²C-compatible serial interface. The MAX4563 features a 3-wire SPI™/QSPI™/MICROWIRE™-compatible serial interface. Both parts are available in 16-pin QSOP packages and operate over the commercial and extended temperature ranges.
MAX4562, MAX4563: Typical Operating Circuit MAX4562, MAX4563: Typical Operating Circuit Enlarge+

Key Features

  • Selectable Soft-Switching Mode for "Clickless" Audio Operation
  • 30Ω max On-Resistance
  • Audio Performance
    • -85dB Off-Isolation at 20kHz
    • -85dB Crosstalk at 20kHz
    • -0.007% THD
  • Video Performance
    • -55dB Off-Isolation at 10MHz
    • -55dB Crosstalk at 10MHz
  • T-Switch Configurable for Improved Off-Isolation
  • Serial Interface
    • 2-Wire I²C-Compatible (MAX4562)
    • 3-Wire SPI/QSPI/MICROWIRE-Compatible (MAX4563)
  • Single-Supply Operation from +2.7V to +5.5


  • Audio Systems
  • PC Multimedia Boards
  • Set-Top Boxes
  • Video Conferencing Systems

See parametric specs for Audio/Video Routing (Unbuffered) (26)

Part NumberFunctionsConfig.RON
Off Iso.
maxmaxmax@ Freq.@ Freq.See Notes
MAX4562 Switch2 x SPST + 2 x SPDT20
2.7 to 5.5
$2.96 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: MAX4563.pdf 
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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