← 返回 JSSC 论文列表JSSC 2009第9期RF & Wireless90 nm
A Widely-Tunable, Reconfigurable CMOS Analog Baseband IC for Software-Defined Radio Masaki Kitsunezuka
一款用于软件定义无线电的可重构CMOS模拟基带芯片，支持多种滤波器特性。
12 mA电流消耗，1.0 V电源，输入参考带内噪声低，芯片面积小
软件定义无线电可重构滤波器CMOS模拟基带离散时间跨导器
▸基于占空比控制的离散时间跨导器的可重构滤波器
▸支持多种滤波器响应（Butterworth、Chebyshev、椭圆）
▸宽带宽范围（400 kHz至30 MHz）
Abstract
This paper describes a reconfigurable analog base- band (ABB) for a software-defined radio (SDR). A wide variety of filter characteristics needed for SDR can be obtained by a recon- figurable filter based on a newly developed duty-cycle controlled discrete-time transconductor. The ABB, implemented in a 90 nm CMOS process, provides second- and fourth-order Butterworth, Chebyshev, and elliptic responses with bandwidths from 400 kHz to 30 MHz. The chip draws only 12 mA and achieves a P /49/100/66 of /43/55dBm with a 1.0 V supply. The input-referred integrated in-band noise is /48 /51/49 /109/86/114/109/115and the die area is as small as /48 /53/55mm/50.