A bit-serial approach to VLSI implementation of digital LDI ladder filters

Author

Balestro, F. ; Privat, G. ; Tawfik, M.S.

Author_Institution

CNET, Meylan, France

fYear

1989

Firstpage

2552

Abstract

LDI (lossless discrete integrator, or leapfrog) digital ladder filters are shown to exhibit the most favorable properties for VLSI integration among low-sensitivity recursive filter structures. Using an exact synthesis procedure derived from the switched-capacitor-filter silicon compiler IMAN, novel structures realizing purely LDI-transformed all-pole and pole-zero transfer functions are generated. Dedicated systolic bit-serial architectures for these structures are investigated. A prototype chip for an eighth-order all-pole low-pass filter, fabricated in 1.2-μm CMOS technology, is presented

Keywords

CMOS integrated circuits; VLSI; circuit layout CAD; digital filters; ladder networks; low-pass filters; poles and zeros; transfer functions; 1.2 micron; CMOS technology; IMAN; VLSI implementation; VLSI integration; all-pole; bit-serial; dedicated systolic bit-serial architectures; digital LDI ladder filters; eighth-order all-pole low-pass filter; exact synthesis; leapfrog; lossless discrete integrator; low-sensitivity recursive filter structures; novel structures; pole-zero transfer functions; switched-capacitor-filter silicon compiler; Band pass filters; CMOS technology; Digital filters; Flow graphs; Frequency; Low pass filters; Prototypes; Sampling methods; Transfer functions; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Conference_Location

Glasgow

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1989.266988

Filename

266988