Title :
FIR filters for compensating D/A converter frequency response distortion
Author :
Vankka, Jouko ; Lindeberg, Jonne ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Three different designs are represented to compensate the sinc(x) frequency response distortion resulting from D/A converters, by using digital FIR filters. The filters are designed to compensate the signal´s second image distortion. All filters are designed on a programmable logic device (PLD). The numbers of logic elements (LEs) needed in three different implementations are compared. The measured wideband code division multiple access (WCDMA) signal´s second image meets adjacent channel leakage power specifications.
Keywords :
FIR filters; code division multiple access; compensation; digital filters; digital-analogue conversion; frequency response; programmable logic devices; Altera FLEX 10KA-1 series device; D/A converters; DAC frequency response distortion; PLD; WCDMA signal; adjacent channel leakage power specifications; digital FIR filters; distortion compensation; programmable logic device; second image distortion; wideband code division multiple access; Digital-to-frequency converters; Distortion measurement; Finite impulse response filter; Frequency response; Logic devices; Multiaccess communication; Power measurement; Programmable logic devices; Signal design; Wideband;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010400
