A four-channel digital signal processor in 1.2- mu m CMOS with on-chip D/A and A/D conversion serving four speech channels in a new-generation subscriber line circuit. - Didier Haspeslagh; Jan Sevenhans; Ann Delarbre; Lajos Kiss; Eric Moerman (IEEE J. Solid State Circuits, 1991)

A 4/7 kHz audio bandwidth selectable digital phone interface (DPI) chip with on-chip analog functions and modem. - Didier Haspeslagh; Eric Moerman; Zhong Yuan Chang; Johan Haspeslagh (IEEE J. Solid State Circuits, 1994)

A CMOS differential buffer amplifier with accurate gain and clipping control. - Zhong Yuan Chang; Didier Haspeslagh (IEEE J. Solid State Circuits, 1995)

A CMOS analog front-end circuit for an FDM-based ADSL system. - Zhong Yuan Chang; Damien Macq; Didier Haspeslagh; Paul M. P. Spruyt; Bernard L. A. G. Goffart (IEEE J. Solid State Circuits, 1995)

A general purpose design-for-test methodology at the analog-digital boundary of mixed-signal VLSI. - Johan Verfaillie; Didier Haspeslagh (J. Electron. Test., 1996)

A highly linear CMOS Gm-C bandpass filter with on-chip frequency tuning. - Zhong Yuan Chang; Didier Haspeslagh; Johan Verfaillie (IEEE J. Solid State Circuits, 1997)

Wireless telecom silicon integration: analog design for radio, baseband and speech spectrum. - Jan Sevenhans; Didier Haspeslagh; Jacques Wenin (Wirel. Networks, 1998)