[FAQ] What is a Ring DAC™ Mapper?

dCS DACs oversample in several stages, eventually presenting the Ring DAC™ with 5-bit binary data at about 3MS/s. The Mapper decodes the data to a minimum of 32 digital signals, one corresponding to each binary state, then it scrambles the order of the signals. The Mapper randomises small matching errors in the Ring DAC core, converting what would be harmonic distortion to a small amount of extra noise.

Vivaldi DAC v2.00, Vivaldi One, and Rossini 2.0 offer a choice of 3 Mappers – the original 3MS/s design and two new Mapper algorithms that run at about 6MS/s.