Analysis of Millimeter-Wave Digital Frequency Modulators for Ubiquitous Sensors and Radars

被引：0

作者：

Cherniak, Dmytro ^{[1
]}

Levantino, Salvatore ^{[1
]}

Samori, Carlo ^{[1
]}

Nonis, Roberto ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Elettron Informaz & Bioingn DEIB, Milan, Italy

来源：

2017 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2017年

关键词：

Digital PLL; mm-wave; FMCW; radar; pre-emphasis; two-point injection; CMOS; PLL; TRANSMITTER;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The need for low-noise, highly-linear, programmable chirp generators makes digital phase-locked loops (DPLLs) an attractive solution for radar sensors. This paper presents a general analysis and comparison of the two main techniques enabling wideband frequency modulation (FM) in PLLs, namely the two-point injection and the pre-emphasis. It is shown that while the two topologies are equivalent in term of mismatch error suppression, the required input range for the time-to-digital converter (TDC) is substantially lower in the two-point injection scheme, thus relaxing the TDC power consumption and linearity.

引用

页数：4

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