MAX4571

19-1404; Rev 1; 4/99 Serially Controlled, Clickless Audio/Video Switches General Description 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, I 2C™-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. Features o Selectable Soft Switching Mode for “Clickless” Audio Operation o 35Ω max On-Resistance o -90dB Audio Off-Isolation at 20kHz -50dB Video Off-Isolation at 10MHz o -90dB Audio Crosstalk at 20kHz -52dB Video Crosstalk at 10MHz o Serial Interface 2-Wire, Fast-Mode, I2C-Compatible (MAX4571/72) 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4573/74) o Single-Supply Operation from +2.7V to +5.25V MAX4571–MAX4574 Applications Set-Top Boxes PC Multimedia Boards Audio Systems Video Conferencing Systems PART MAX4571CEI MAX4571CAI MAX4571CWI MAX4571EEI MAX4571EAI MAX4571EWI MAX4572CEI MAX4572CAI MAX4572CWI MAX4572EEI MAX4572EAI MAX4572EWI MAX4573CEI MAX4573CAI MAX4573CWI MAX4573EEI MAX4573EAI MAX4573EWI MAX4...