A 6-bit Arbitrary Digital Noise Emulator in 65nm CMOS Technology

Abstract

An arbitrary noise generator (ANG) is based on time-series charging of divided parasitic capacitance (TSDPC) and emulates power supply noise generation in a CMOS digital circuit. A prototype ANG incorporates an array of 32×32 6-bit TSDPC cells along with a 128-word vector memory and occupies 2×2mm^2 in a 65nm 1.2V CMOS technology. Digital noise emulation of functional logic cores such as register arrays and processing elements is demonstrated with chip-level waveform monitoring at power supply, ground, as well as substrate nodes.