Serially Controlled, Clickless Audio/Video Switches

 

Part Number	Replacement	Explanation

Description

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The MAX4562/MAX4563 serial-interface controlled switches are ideal for multimedia applications. Each device features 30Ω max on-resistance (R_ON), 5Ω R_ON match, and 5Ω R_ON 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 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

Applications/Uses

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