Skyworks Solutions, Inc.
VOLTAGE GENERATORS WITH CHARGE PUMPS FOR SWITCH CIRCUITS

Abstract:

Disclosed herein are non-limiting examples of voltage generators that use multiple charge pumps coupled in series to generate a targeted voltage. The charge pumps implement multiple charge pump units that reduce the introduction of noise into a circuit in which they are implemented. The charge pumps units work in parallel on different clock phases to reduce spurious noise. This is in contrast to using a single charge pump with a relatively large flying capacitor or a plurality of charge pumps in series. This can, for example, reduce spurious signals or spurs that arise due at least in part to the characteristics of the clock signal. The disclosed technologies may be particularly advantageous for SOI-based components and circuits.