General Description
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.

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 +5.5V

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