Small- Signal Audio Design

Chapter 21

Interfacing with the Digital Domain

The advance of digital audio has greatly improved the fidelity of audio storage media, and generally made wonderful things possible, but sound waves remain stubbornly analog, and so conversion from analog to digital and vice versa is very necessary. Today’s analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) have excellent performance, with 24-bit accuracy at a 192 kHz sampling rate commonplace, but to achieve this potential performance in an application there are a good number of factors that need to be appreciated. Some of them, such as the need for effective HF decoupling, are relatively straightforward provided you follow the manufacturer’s recommendations, but others, ...