A CMOS analog front-end circuit for an FDM-based ADSL system

被引：26

作者：

Chang, ZY ^{[1
]}

Macq, D ^{[1
]}

Haspeslagh, D ^{[1
]}

Spruyt, PMP ^{[1
]}

Goffart, BLAG ^{[1
]}

机构：

[1] ALCATEL MIETEC,B-9700 OUDENNARDE,BELGIUM

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1995年 / 30卷 / 12期

关键词：

D O I：

10.1109/4.482192

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A CMOS analog front-end circuit for an FDM-hased ADSL system is presented, The circuit contains all analog functions including AGC amplifiers, continuous-time band pass filters, Sigma Delta AD/DA converters, and digital decimation and interpolation filters, On-chip automatic tuning of the bandpass filters provides more than 300% center frequency range with 1% frequency accuracy, The higher-order Sigma Delta AD/DA converters achieve 12-b data conversion at 1.54 Msamples/s with an oversampling ratio of only 32, The 0.7 mu m CMOS circuit measures 65 mm(2) and consumes 1.9 W from a single 5 V power supply.

引用

页码：1449 / 1456

页数：8

共 8 条

[1] INTEGRATED CONTINUOUS-TIME BALANCED FILTERS FOR 16-B DSP INTERFACES [J].