NLAS3699B Dual DPDT UltraLow R ON Switch The NLAS3699B is a dual independent ultralow R DPDT ON analog switch. This device is designed for low operating voltage, high current switching of speaker output for cell phone applications. It can NLAS3699B D S2 S1 IN Figure 1. Input Equivalent Circuit PIN DESCRIPTION QFN PIN Symbol Name and Function 1, 3, 5, 7, 9, 11, 13, 15 1S1 to 4S1, 1S2 to 4S2 Independent Channels 2, 10 12IN, 34IN Controls 4, 8, 12, 16 D1 to D4 Common Channels 6 GND Ground (V) 14 V Positive Supply Voltage CC TRUTH TABLE IN S1 S2 H ON OFF(*) L OFF(*) ON *High impedance.