JSSC 2013第9期RF & Wireless0.13μm CMOSNeural Network Accelerator

Low-Power Low-Cost CMOS Direct-Conversion Receiver Front-End for Multistandard A

一款宽带CMOS直接转换接收器前端，具有低功耗和低成本特性，适用于多标准应用。

13mW功耗，22.4dB转换增益，8.3dB噪声系数，1.5dBm线性度，1.4-5.2GHz工作频率

宽带接收器直接转换CMOS低功耗多标准

▸采用宽带共栅极低噪声跨导放大器（LNTA）与双反馈结构

▸电流模式被动混频器与低输入阻抗跨阻放大器（TIA）的组合

▸LNTA负载阻抗提升技术以减少TIA引起的噪声放大

Abstract

A broadband CMOS direct-conversion receiver with on-chip frequency divider has been integrated in a 0.13- m CMOS process. The key feature of the proposed receiver front-end is a single low-noise transconductance ampli ﬁer (LNTA) driving a current-mode passive mixer termi nated by a low-input-impedance transimpedance ampliﬁer (TIA). The receiver chain has improved robustness to out-of-band interference and ou tstanding linearity. We employ a broadband common-gate (CG) LNTA with dual feed- back to