Title :
Minimization of power dissipation of analog channel-select filter and Nyquist-rate A/D converter in UTRA/FDD
Author :
Jussila, Jarkko ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Minimization of the power dissipation of the analog and digital baseband circuits is important in low-power WCDMA receivers because of the large signal bandwidth. In this paper, the optimum design parameters of an analog all-pole channel-select filter and a Nyquist-rate A/D converter (ADC), which lead to the minimum power dissipation in an UTRA/FDD WCDMA direct-conversion receiver, are discussed. Equations that describe the relations between the filter order, the sample rate and resolution of the ADC, and the total power consumption are derived. Numerical examples of the optimum design parameters based on published implementations are given.
Keywords :
3G mobile communication; active filters; analogue-digital conversion; automatic gain control; cellular radio; code division multiple access; low-pass filters; power consumption; radio receivers; ADC resolution; CDMA direct-conversion receiver; FDD; Nyquist-rate A/D converter; UTRA/FDD WCDMA direct-conversion receiver; analog all-pole channel-select filter; analog baseband circuit; digital baseband circuit; optimum design parameters; power consumption; power dissipation minimization; Bandwidth; Baseband; Circuits; Digital filters; Energy consumption; Equations; Filtering; Multiaccess communication; Power dissipation; Receivers;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329160
