Live demonstration: A low-power broad-bandwidth noise cancellation VLSI circuit design for in-ear headphones

Abstract

We have designed, fabricated, and tested a low-power broad-bandwidth noise cancellation VLSI circuit for in-ear headphones. The proposed design can attenuate 15 dB for broadband pink noise between 50-1500 Hz when operated at 20 MHz clock frequency at the costs of 84.2 k gates and power consumption of 6.59 mW only. Compared with the existing designs, the proposed work achieves higher noise cancellation performance in terms of 3 dB further and saves 97% power consumption.