AS1747

Da t as heet AS1747 L o w - Vo l ta g e , D u a l S P D T, A u d i o C l i c k l e s s S w i t c h w i t h N e g a t i v e R a i l C a pa b i l i t y www.DataSheet4U.com 1 General Description The SPDT (single-pole/double-throw) switch AS1747 allows signals below ground to pass through without distortion. This analog switch is ideal for switching audio signals, due to the supply voltage from +1.8V to +5.5V and the low 0.4Ω on-resistance. This SPDT switch is available in space-saving 10-pin TDFN 3x3 packages and operate over the -40ºC to +85ºC extended temperature range. 2 Key Features ! Distortion -Free Negative Signal Throughput Down to VCC - 5.5V 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) Available in 10-pin TDFN 3x3 Packages ! ! ! ! ! ! ! 3 Applications The device is ideal for cell phones, PDAs and hand-held devices, notebook computers and MP3 players. Figure 1. AS1747 - Typical Operating Circuit Out+ Audio Source 1 Out- NC1 COM1 NO1 IN1 Input Select 8Ω Speaker AS1747 NC2 IN2 Out+ Audio Source 2 OutNO2 COM2 www.austriamicrosystems.com Revision 1.01 1 - 13 AS1747 Datasheet - P i n o u t www.DataSheet4U.com 4 Pinout Pin Assignment Figure 2. Pin Assignments (Top View) VCC 1 NO1 2 COM1 3 NC1 4 IN1 5 10 NO2 9 COM2 8 NC2 7 IN2 6 GND Pin Description Table 1. Pin Description Pin Name VCC NO1 COM1 NC1 IN1 GND IN2 NC2 C...