Super Audio CD: The Rich Report References, Multibit Converters

Sidebar 2: References, Multibit Converters

Less activity is occurring in state-of-the-art audio converters because the market is much smaller for these. Analog Devices and Philips are sitting things out, while Burr-Brown appears to be concentrating on lower-cost chips for use in CD-R, MiniDisc, and A/V receivers. Most companies are busy working on converters for DSL rather than audio. DSL has some very tough requirements, and many of these are multibit delta-sigma structures. We will not reference these here.

I. Fujimori, et al, "A 5V Single-Chip Delta-Sigma Audio A/D Converter with 111dB Dynamic Range," IEEE Journal of Solid-State Circuits, Vol.32 No.3 (March 1997), p.329. This paper is the flip side of a MASH DAC chip. The AKM ADC paper above is a new MASH architecture. This MASH architecture gives rise to two bits each DSM clock cycle. AKM does some interesting stuff to eliminate idle tones and to maximize dynamic range.

Y. Ka, et al, "5V, 118dB Delta-Sigma Analog-to-Digital Converter for Wideband Digital Audio," ISSCC Digest of Technical Papers, February 1997, pp.218-219. This paper describes an important three-level design by Crystal Semiconductor.—David Rich

lindamartin's picture

Very nice album. Every song of this album has a little bit affection by which i attracts all the time.

flowers delivery germany | send flowers mexico

the north face outlet's picture

With their mantra, Never Stop Exploring, cheap north face continues to push the envelope in outerwear, north face outlet works with the most advanced technical developments available to ensure optimal comfort and protection in every piece of apparel they create. The end result are diverse yet superior lines of north face sale Outerwear, all of which fit, function and perform at the highest levels.welcome to the north face outlet