A 110nm RFCMOS GPS SoC with 34mW -165dBm Tracking Sensitivity

📋 论文概要

该论文提出了一款采用110nm RFCMOS工艺的GPS SoC，实现了34mW功耗和-165dBm跟踪灵敏度。该芯片支持多种定位和导航应用，包括自主GPS、SBAS、DGPS和AGPS，通过优化基带相关效率解决了低功耗与高灵敏度兼顾的问题。

💡 主要创新点

• 采用110nm RFCMOS工艺实现了低功耗与高灵敏度的GPS SoC集成。
• 基带架构针对相关效率进行了优化，在34mW功耗下达到-165dBm跟踪灵敏度。
• 支持多种参考频率和多种导航模式（自主GPS、SBAS、DGPS、AGPS）。

🏷 关键词

📄 原文摘要

H-C Chiou1, H-C Yeh1, J-H Shieh1, K-S Huang1, K-I Li1, M-J Wu2, M-H Li1, S-H Chou1, S-L Chew2, W-L Lien2, W-G Yau1, W-Z Ge1, W-C Lai1, W-H Ting1, Y-J Tsai1, Y-C Yen1, Y-C Yeh1 1 2 MediaTek, Hsinchu, Taiwan MediaTek, Singapore A high performance RFCMOS SoC GPS navigation solution is introduced. It supports various location and navigation applications, including autonomous GPS, SBAS, DGPS (RTCM), and AGPS in L1-band at 1575.42MHz. A wide range of reference frequencies are supported to comply with other handheld specifications. The base-band architecture is optimized for the correlation efficiency and the power consumption of one single correlating operation. Hence this SoC receiver achieves the industry’s highest levels of sensitivity, accuracy, and Time-to-First-Fix (TTFF) with the lowest power consumption. PMIC is also integrated in the SoC, no external LDO and power switching circuit is needed for all voltage domains, including RTC.

👥 作者与机构

J-M Wei1, C-N Chen1, K-T Chen1, C-F Kuo1, B-H Ong2, C-H Lu1, C-C Liu1,