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

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...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:IEEE Journal of solid state circuits 41, 4 (2006).
1. Verfasser: Lin, A.C.Y
Format: Artikel
Sprache:English
Schlagworte:
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.