Spurious-free dynamic range
- Spurious-free dynamic range
Spurious-Free Dynamic Range (SFDR) is a measure used to specify analog-to-digital and digital-to-analog converters (ADCs and DACs, respectively).
SFDR is defined as the ratio of the RMS value of the carrier frequency (maximum signal component) at the input of the ADC or DAC to the RMS value of the next largest noise or harmonic distortion component (which is referred to as a “spurious” or a “spur”) at its output. SFDR is usually measured in dBc (i.e. with respect to the carrier frequency amplitude) or in dBFS (i.e. with respect to the ADC's full-scale range). Depending on the test condition, SFDR is observed within a pre-defined frequency window or from DC up to Nyquist frequency of the converter (ADC or DAC).
See also
* Analog-to-digital converter
* Digital-to-analog converter
* THD (Total Harmonic Distortion)
* SINAD (SIgnal-to-Noise-And-Distortion)
Wikimedia Foundation.
2010.
Look at other dictionaries:
Spurious Free Dynamic Range — Spurious Free Dynamic Range, SFDR, zu deutsch etwa „Störungsfreier dynamischer Bereich“, ist eine auch im deutschsprachigen Raum gebräuchliche Angabe, um den Abstand der größten Störung zur Grundschwingung in einem Spektrum anzugeben. Innerhalb… … Deutsch Wikipedia
SFDR — Spurious Free Dynamic Range, SFDR, zu deutsch etwa Störungsfreier dynamischer Bereich , ist eine auch im deutschsprachigen Raum gebräuchliche Angabe, um den Abstand der größten Störung zur Grundschwingung in einem Spektrum anzugeben. Innerhalb… … Deutsch Wikipedia
Numerically controlled oscillator — A numerically controlled oscillator (NCO) is a digital signal generator which creates a synchronous (i.e. clocked), discrete time, discrete valued representation of a waveform, usually sinusoidal.[1] NCOs are often used in conjunction with a… … 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
Dynamische Parameter — ist ein Sammelbegriff aus der Messtechnik. Üblicherweise werden das Signal Rausch Verhältnis, die Total Harmonic Distortion (THD), die Spurious Free Dynamic Range (SFDR) und die Effektive Anzahl von Bits (ENOB) als Dynamische Parameter bezeichnet … Deutsch Wikipedia
SFDR — Динамический диапазон, свободный от паразитных составляющих (англ. SFDR, Spurious Free Dynamic Range) безразмерная величина, равная отношению мощности полезного узкополосного сигнала (несущей) к мощности наиболее мощной паразитной… … Википедия
SFDR — comp. abbr. Spurious Free Dynamic Range … United dictionary of abbreviations and acronyms
Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after … Wikipedia
Liquid crystal display — LCD redirects here. For other uses, see LCD (disambiguation). Reflective twisted nematic liquid crystal display. Polarizing filter film with a vertical axis to polarize light as it enters. Glass substrate with ITO electrodes. The shapes of these… … Wikipedia
Software-defined radio — A Software Defined Radio (SDR) system is a radio communication system where components that have typically been implemented in hardware (i.e. mixers, filters, amplifiers, modulators/demodulators, detectors. etc.) are instead implemented using… … Wikipedia