A chip design and implementation of a 13-bit high-order oversampling modulator for ISDN-U interface. - Sau-Mou Wu; Rou-Yi Liu; Yu-Chin Chu (ICECS, 1999)

Chip design of a bandpass sigma-delta modulator. - Sau-Mou Wu; Rou-Yi Liu; Wei Wu; Che-Pin Chen (ICECS, 2001)