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一款完全集成的传感器 SoC，具有数字校准硬件和 2.4GHz 的无线收发器。

A fully integrated sensor SoC with digital calibration hardware and wireless transceiver at 2.4 GHz.

机构信息

Department of Multimedia-IP Research Center, Korea Electronics Technology Institute, Bundang-gu, Gyeonggi-do, Korea.

出版信息

Sensors (Basel). 2013 May 21;13(5):6775-92. doi: 10.3390/s130506775.

DOI:10.3390/s130506775
PMID:23698271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3690081/
Abstract

A single-chip sensor system-on-a-chip (SoC) that implements radio for 2.4 GHz, complete digital baseband physical layer (PHY), 10-bit sigma-delta analog-to-digital converter and dedicated sensor calibration hardware for industrial sensing systems has been proposed and integrated in a 0.18-μm CMOS technology. The transceiver's building block includes a low-noise amplifier, mixer, channel filter, receiver signal-strength indicator, frequency synthesizer, voltage-controlled oscillator, and power amplifier. In addition, the digital building block consists of offset quadrature phase-shift keying (OQPSK) modulation, demodulation, carrier frequency offset compensation, auto-gain control, digital MAC function, sensor calibration hardware and embedded 8-bit microcontroller. The digital MAC function supports cyclic redundancy check (CRC), inter-symbol timing check, MAC frame control, and automatic retransmission. The embedded sensor signal processing block consists of calibration coefficient calculator, sensing data calibration mapper and sigma-delta analog-to-digital converter with digital decimation filter. The sensitivity of the overall receiver and the error vector magnitude (EVM) of the overall transmitter are -99 dBm and 18.14%, respectively. The proposed calibration scheme has a reduction of errors by about 45.4% compared with the improved progressive polynomial calibration (PPC) method and the maximum current consumption of the SoC is 16 mA.

摘要

已经提出并集成在 0.18μm CMOS 技术中了一款单芯片传感器片上系统 (SoC)，它实现了用于 2.4GHz 的无线电、完整的数字基带物理层 (PHY)、10 位 sigma-delta 模数转换器以及用于工业感应系统的专用传感器校准硬件。收发器的构建块包括低噪声放大器、混频器、信道滤波器、接收器信号强度指示器、频率合成器、压控振荡器和功率放大器。此外，数字构建块包括偏移正交相移键控 (OQPSK) 调制、解调、载波频率偏移补偿、自动增益控制、数字 MAC 功能、传感器校准硬件和嵌入式 8 位微控制器。数字 MAC 功能支持循环冗余校验 (CRC)、符号间定时检查、MAC 帧控制和自动重传。嵌入式传感器信号处理块包括校准系数计算器、感应数据校准映射器和具有数字抽取滤波器的 sigma-delta 模数转换器。整体接收器的灵敏度和整体发射器的误差向量幅度 (EVM) 分别为-99dBm 和 18.14%。与改进的渐进多项式校准 (PPC) 方法相比，所提出的校准方案将误差降低了约 45.4%，并且 SoC 的最大电流消耗为 16mA。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/d63c5fee371c/sensors-13-06775f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/bd64766b3210/sensors-13-06775f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/ad42f86de091/sensors-13-06775f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/2ff814048ace/sensors-13-06775f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/e61a72950003/sensors-13-06775f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/2e03ebaed60b/sensors-13-06775f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/6043b3cf2093/sensors-13-06775f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/b4c43efc53a7/sensors-13-06775f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/e7382efa04ca/sensors-13-06775f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/68ebb03b1998/sensors-13-06775f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/d63c5fee371c/sensors-13-06775f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/bd64766b3210/sensors-13-06775f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/ad42f86de091/sensors-13-06775f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/2ff814048ace/sensors-13-06775f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/e61a72950003/sensors-13-06775f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/2e03ebaed60b/sensors-13-06775f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/6043b3cf2093/sensors-13-06775f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/b4c43efc53a7/sensors-13-06775f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/e7382efa04ca/sensors-13-06775f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/68ebb03b1998/sensors-13-06775f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/081d/3690081/d63c5fee371c/sensors-13-06775f10.jpg

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