Multiplier-free Lagrange interpolators for oversampled D/A converters

– This paper presents a novel approach to implement the interpolation function by means of Lagrange interpolators. 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.

• Type: Conference
• Year: 1993
• Where: ISCAS
• Authors: F. Francesconi, G. Lazzari, Valentino Liberali, Franco Maloberti, Guido Torelli
• Keywords: Conventional Sinc Filters, Hardware, Interpolation Function, ISCAS 1993, Lagrange Interpolators