Influence of timing jitter on quadrature charge sampling

• Published in: IET communications Vol. 1; no. 4; pp. 705 - 710
• Main Authors: INAMORI, M, BOSTAMAM, A. M, SANADA, Y
• Format: Journal Article
• Language: English
• Published: Stevenage Institution of Engineering and Technology 01.08.2007; John Wiley & Sons, Inc
• Subjects: Applied sciences; Charge; Electric potential; Exact sciences and technology; Information, signal and communications theory; Mixers; Quadratures; Receivers; Sampling; Sampling, quantization; Signal and communications theory; Telecommunications and information theory; Timing jitter; Voltage; Timing jitter; Target tracking; Sampling; Crosstalk; Wireless telecommunication; Mixer
• ISSN: 1751-8628; 1751-8636
• DOI: 10.1049/iet-com:20060358

The influence of timing jitter on quadrature charge sampling for a direct conversion receiver has been evaluated. In contrast to voltage sampling, the charge sampling mixer integrates the signal current instead of tracking the signal voltage. The charge sampling mixer has been applied to RF direct sampling in wireless receivers. The influence of timing jitter on charge sampling has been analysed in some literatures. However, in wireless receivers, quadrature sampling is required in order to demodulate I-phase and Q-phase signals. Different from charge sampling, timing jitter causes crosstalk between these signals. The influence of timing jitter on quadrature sampling is investigated.