A 5-V CMOS programmable acoustic front-end for ISDN terminals and digital telephone sets. - Germano Nicollini; Pierangelo Confalonieri; Carlo Crippa; Sergio Pernici; Yves Mazoyer; Carlo Dallavalle; Sergio Mariani; Aldo Calloni (IEEE J. Solid State Circuits, 1994)

A high-performance analog front-end 14-bit codec for 2.7-V digital cellular phones. - Germano Nicollini; Sergio Pernici; Pierangelo Confalonieri; Carlo Crippa; Angelo Nagari; Sergio Mariani; Aldo Calloni; Massimo Moioli; Carlo Dallavalle (IEEE J. Solid State Circuits, 1998)