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Design and Analysis of a DCO-Based Phase-Tracking RF Receiver for IoT Applicatio
设计并分析了一种基于DCO的相位跟踪射频接收器，适用于物联网应用，具有高能效和小面积特点。
40nm CMOS, 0.85V, 2 Mb/s, 1.55 mW, -87dBm灵敏度
物联网射频接收器数字控制振荡器相位跟踪能效
▸利用DCO作为本地振荡器和二进制频率反馈
▸数据辅助载波频率跟踪确保稳定性
▸避免传统接收器中功耗高的I/Q LO生成和镜像抑制问题
Abstract
This paper presents an energy-/area-efficient
digitally controlled oscillator (DCO)-based phase-tracking
Receiver for Internet-of-Things (IoT) applications. The RX
leverages the constant-envelope nature of frequency shift keying
modulation adopted in many IoT protocols, e.g., IEEE802.15.4
and Bluetooth low energy (BLE), to enhance the energy efficiency
and to reduce the chip area. The proposed RX, with the DCO
acting as a local oscillator (LO) and binary frequency feedback,
promotes low-power and