A SAW-less GSM/GPRS/EDGE Receiver Embedded in a 65nm CMOS SoC

📋 论文概要

该论文提出了一种无SAW滤波器的GSM/GPRS/EDGE接收机，集成在65nm CMOS SoC中，旨在消除接收端SAW滤波器以降低物料成本。通过创新的电路设计解决了0dBm阻塞信号导致的噪声系数恶化和增益灵敏度下降问题。

💡 主要创新点

• 采用无SAF滤波器的接收机架构，通过电路设计抑制阻塞信号，避免噪声系数恶化。
• 在65nm CMOS SoC中实现多频段2G/2.5G接收机，降低系统成本和复杂度。

🏷 关键词

📄 原文摘要

integration and reducing bill of material (BOM) for GSM/GPRS/EDGE cellular systems. In modern cellular phones, transmit SAW filters have been largely eliminated with innovative TX architecture and circuits [1] while receive SAW filters are still present. This remains as one of the few bottlenecks in achieving a true low-cost single-chip solution which offers a genuine advantage for high-volume applications. The main challenges of eliminating SAW-based bandpass filters from multiband 2G/2.5G receivers lie in noise-figure (NF) degradation and gain desensitization induced by 0dBm blockers at merely 20MHz away from the 99dBm in-band signal at GSM850/900 band. Furthermore, these unfiltered interferers cause a strong reciprocal mixing effect and result in additional SNR degradation. Therefore, a SAW-less RX is req

👥 作者与机构

Ivan Siu-Chuang Lu1, Chi-yao Yu2, Yen-horng Chen2, Lan-chou Cho2,

Chih-hao Eric Sun2, Chih-Chun Tang2, George Chien1 1 2 MediaTek, San Jose, CA, MediaTek, Hsinchu, Taiwan Over the last decade, significant progress has been made towards increasing