Example implementations described herein are directed to a system on chip that can include a plurality of blocks of substantially non-uniform shapes and dimensions, a plurality of routers, and a plurality of links between routers. The comparator generates a PWM signal by comparing a reference signal and an amplified audio signal. The second conductive path is non-conductive when the SDC signal has a first value at the input and is conductive when the SDC signal has a second value at the input.