A multilevel QAM demodulator VLSI with wideband carrier recovery and dual equalizing mode. - Kazuya Yamanaka; Sumitaka Takeuchi; Shuji Murakami; Masayuki Koyama; Jun Ido; Takashi Fujiwara; Susumu Hirano; Keisuke Okada; Tadashi Sumi (IEEE J. Solid State Circuits, 1997)