1-bit DAC

1-bit DAC

A Bitstream or 1-bit DAC is a consumer electronics marketing term describing an oversampling digital-to-analog converter (DAC) with an "actual" 1-bit DAC (that is, a simple "on/off" switch) in a delta-sigma loop operating at multiples of the sampling frequency. The combination is equivalent to a DAC with a larger number of bits (usually 16-20), therefore the "1-bit" label is a bit of a misnomer.

The advantages of this type of converter are high linearity combined with low cost, owed to the fact that most of the processing takes place in the digital domain and requirements for the analog anti-aliasing filter after the output can be relaxed. For these reasons, this design is very popular in digital consumer electronics (CD/DVD players, set-top boxes and the likes).

A literal 1-bit DAC (operating at the nominal sampling frequency, without oversampling) would produce extremely poor sound: speech is just about intelligible.

ee also

*DAC Types


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • DAC — is a three letter abbreviation with multiple uses: Contents 1 Culture 2 Sports 3 Technology …   Wikipedia

  • DAC-Modul — Ein Digital Analog Umsetzer (DAU, engl. digital to analog converter (DAC), oder Digital Analog Wandler genannt) wird verwendet, um quantisierte digitale Signale oder einzelne Werte in analoge Signale umzusetzen. Quelle der Signale sind dabei der… …   Deutsch Wikipedia

  • Dac-modul — Ein Digital Analog Umsetzer (DAU, engl. digital to analog converter (DAC), oder Digital Analog Wandler genannt) wird verwendet, um quantisierte digitale Signale oder einzelne Werte in analoge Signale umzusetzen. Quelle der Signale sind dabei der… …   Deutsch Wikipedia

  • Incredible Technologies 8-bit — Le Incredible Technologies 8 bit, créé par Incredible Technologies, est un système d arcade commercialisé en 1988. Sommaire 1 Description 2 Spécifications techniques 2.1 Processeur 2.2 …   Wikipédia en Français

  • List of 16-bit computer hardware palettes — This is a list of color palettes of some of the most popular 16 bit personal computers, roughly those manufactured from 1985 to 1995. All of them are based on RGB palettes; although some output in composite video, the internal logic to produce… …   Wikipedia

  • Digital-to-analog converter — For digital television converter boxes, see digital television adapter. 8 channel digital to analog converter Cirrus Logic CS4382 as used in a soundcard. In electronics, a digital to analog converter (DAC or D to A) is a device that converts a… …   Wikipedia

  • Roland MT-32 — The Roland MT 32 Multi Timbre Sound Module is a MIDI synthesizer module first released in 1987 by Roland Corporation. Along with its compatible modules, it established an early de facto standard in computer music and was the first product in… …   Wikipedia

  • Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …   Wikipedia

  • TRS-80 Color Computer — 16k TRS 80 Color Computer 1 Developer Tandy Corporation Manufacturer Motorola Release date 1980 …   Wikipedia

  • Sound card — A Sound Blaster Live! Value card, a typical (circa 2000) PCI sound card. Connects to Motherboard via one of: PCI ISA USB IEEE 139 …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”