GENERAL DESCRIPTION
2 Key FEATURES
The SPDT (single-pole/double-throw) switches AS1747, AS1748, AS1749 and AS1750 allow signals below ground to pass through without distortion. These analog switches are ideal for switching audio signals, due to their supply voltage from +1.8V to +5.5V and their low 0.4Ω on-resistance. An included comparator offers the AS1748 and AS1750 with headphone detection or mute/send key function. To reduce click-and-pop sounds when switching between pre-charged points ! Distortion -Free Negative Signal Throughput Down to VCC - 5.5V ! Comparator for Headphone or Mute Detection (AS1748/AS1750) ! Internal Shunt Resistor Reduces Click/Pop (AS1749/AS1750) ! Low On-Resistance (RON) 0.4Ω at +2.7V Supply ! 0.25Ω On-Resistance Flatness ! 0.03Ω On-Resistance Matching ! +1.8V to +5.5V Supply Voltage ! -90dB Crosstalk (100kHz) ! -65dB Off-Isolation (100kHz) ! 0.01% Total Harmonic Distortion ! Available in 10-pin TDFN 3x3, 16-pin TQFN 3x3, and 12-Bump WL-CSP Packages 3 APPLICATIONS
The device is ideal for cell phones, PDAs and hand-held devices, notebook computers and MP3 players.
austriamicrosystems
