Multiplier-free Lagrange interpolators for oversampled D/A converters

• Published in: 1993 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
• Language: English
• 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

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...