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

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...

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Bibliographic Details
Published inInternational Conference on Acoustics, Speech, and Signal Processing pp. 2552 - 2555 vol.4
Main Authors Balestro, F., Privat, G., Tawfik, M.S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1989
Subjects
Band pass filters
CMOS technology
Digital filters
Flow graphs
Frequency
Low pass filters
Prototypes
Sampling methods
Transfer functions
Very large scale integration
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Summary: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- mu m CMOS technology, is presented.< >
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.1989.266988