Title :
Integrated 18th-order pseudo-N-path filter in VIS-SC technique
Author :
Pandel, JÜrgen ; BrÜckmann, Dieter ; Fettweis, Alfred ; Hosticka, Bedrich J. ; Kleine, Ulrich ; Schweer, Rainer ; Zimmer, GÜnter
fDate :
2/1/1986 12:00:00 AM
Abstract :
An integrated 18th-order frequency symmetrical switched-capacitor (SC) bandpass filter is described that was realized by the use of voltage inverter switches (VISs) in the form of recharging devices. The filter was implemented in a standard CMOS technology. It was conceived for use as a `channel filter´ in modulation schemes for PCM/FDM and audio/FDM conversion. Starting from a high-pass filter as reference filter, the SC filter is designed as a pseudo-N-path filter, with N=2. The application of the pseudo-N-path principle leads to a substantial saving in hardware.
Keywords :
Band-pass filters; CMOS integrated circuits; Linear integrated circuits; Switched capacitor filters; band-pass filters; linear integrated circuits; switched capacitor filters; Band pass filters; CMOS technology; Capacitors; Clocks; Delay; Frequency; Matched filters; Sampling methods; Shift registers; Transfer functions;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1986.1052481
