A third order delta-sigma modulator employing shared opamp technique for WCDMA on 0.18um CMOS
スポンサーリンク
概要
- 論文の詳細を見る
Analog to digital converter is a vital component in a wireless transceiver. High order loop filter is one of conventional approach to attain high resolution delta-sigma modulator which required one opamp for each integrator. A third orders delta-sigma modulator (DSM) has been designed utilizing shared opamp technique to reduce number of opamp required and decrease power consumption. Moreover, this architecture has relaxed comparator speed which is appropriate for wireless applications. First and second stages are sharing one opamp in integration and sampling phase. The proposed circuit has been designed on TSMC 0.18um CMOS technology. 2MHz Bandwidth, 50dB Peak SQNR, which is suitable for WCDMA, have been achieved.
論文 | ランダム
- 23pYJ-2 散逸力の分子像(液中AFM) : 液中動作AFMによる水和相互作用の直接計測(領域9シンポジウム主題:探針型プローブ-表面間相互作用の新展開,領域9,表面・界面,結晶成長)
- 周波数検出方式原子間力顕微鏡による有機分子の溶液中高分解能計測
- NC-AFMによる構造・物性計測の最先端
- 19pYP-7 FM-AFMによる有機・生体分子試料の構造・物性計測(領域9シンポジウム : 原子間力顕微鏡法の新展開,領域9(表面・界面,結晶成長))
- Self-Assembled Monolayers of Alkanethiol and Fluoroalkanethiol Investigated by Noncontact Atomic Force Microscopy