Multiplier-free Lagrange interpolators for oversampled D/A converters

An approach to implement the interpolation function by means of Lagrange interpolators is given. The proposed architecture does not require high-frequency multipliers. With respect to conventional sinc filters of a comparable order, the response of Lagrange interpolators is better both in the passba...

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Bibliographic Details
Published in1993 IEEE International Symposium on Circuits and Systems (ISCAS) pp. 219 - 222 vol.1
Main Authors Francesconi, F., Lazzari, G., Liberali, V., Maloberti, F., Torelli, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.1993
Subjects
Circuits
Complexity theory
Computer architecture
Digital filters
Finite impulse response filter
Frequency
Interpolation
Lagrangian functions
Passband
Very large scale integration
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Summary:An approach to implement the interpolation function by means of Lagrange interpolators is given. The proposed architecture does not require high-frequency multipliers. With respect to conventional sinc filters of a comparable order, the response of Lagrange interpolators is better both in the passband and in the stopband, while the proposed implementation requires only a small increase in circuit complexity.< >
ISBN:9780780312814
0780312813
DOI:10.1109/ISCAS.1993.393697