A CMOS oversampled DAC with multi-bit semi-digital filtering and boosted subcarrier SNR for ADSL central office modems.

An oversampled digital-to-analog converter for use in ADSL central office modems has been integrated in 0.18-μm CMOS technology. The converter features a multi-bit semi-digital filter for reconstruction and a digital pre-emphasis filter that boosts the SNR of subcarriers affected by noise shaping an...

Full description

Bibliographic Details
Published in:	IEEE Journal of solid state circuits 41, 4 (2006).
Main Author:	Lin, A.C.Y
Format:	Article
Language:	English
Subjects:	0.18 micron. 1.1 MHz. ADSL. CMOS technology. Asymmetric digital subscriber line. Boosted subcarrier SNR. Central office modems. Digital pre-emphasis filter. Impulse response. In-band magnitude response. Low-pass reconstruction filter. Multibit semi-digital filter. Noise shaping. Oversampled DAC. Oversampled digital-analog converter. Third-order analog filter.