Sampling Jitter in Audio A/D Converters

• Autorzy: Kulka Z.
• Języki publikacji: EN

Abstrakty

EN

This paper provides an overview of the effects of timing jitter in audio sampling analog-to-digital converters (ADCs), i.e. PCM (conventional or Nyquist sampling) ADCs and sigma-delta (ΣΔ) ADCs. Jitter in a digital audio is often defined as short- term fluctuations of the sampling instants of a digital signal from their ideal positions in time. The influence of the jitter increases particularly with the improvements in both resolution and sampling rate of today’s audio ADCs. At higher frequencies of the input signals the sampling jitter becomes a dominant factor in limiting the ADCs performance in terms of signal-to-noise ratio (SNR) and dynamic range (DR).

Słowa kluczowe

EN

analog-to-digital converter; ADC; successive approximation register SAR; sigma-delta ADC; sample-and-hold circuit; DT sigma delta modulator; CT sigma delta modulator; time jitter; aperture jitter; clock jitter; periodic clock jitter; signal-to-noise ratio (SNR)

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2011
• Tom: Vol. 36, No. 4
• Strony: 831--849
• Opis fizyczny: Bibliogr. 25 poz., wykr.

Twórcy

autor

Kulka Z.

• Warsaw University of Technology Institute of Radioelectronics, Electroacoustics Division Nowowiejska 15/19, 00-665 Warszawa, Poland,

Bibliografia

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