Electronically Designed Siren
The circuit was designed to create an electronic siren to provide a scheme for producing an alert sound in emergency cases or any circumstances that requires its usage. 4011 – a quad 2-input NAND gate integrated circuit, generally characterized by small fluctuation in voltage supply, very high impedance, outputs that can sink and source, one output can drive up to 50 inputs, high speed gate propagation time, high frequency, and low power consumption. 4066 – a digitally controlled quad analog switch utilizing advanced silicon-gate CMOS technology with features such as individual switch controls, matched switch characteristics, pin and function compatibility, low quiescent current, low ON resistance, wide analog input voltage range, and 15 ns typical switch enable time. 4046 – a phase locked loop CMOS logic IC used in motor speed control, FSK modulation, tone decoding, voltage-to-frequency conversion, data conditioning and synchronization, frequency discrimination, frequency multiplicati...