Serially Controlled, Clickless Audio/Video Switches

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.

Applications

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

* 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