基于当前域频分复用的多通道直接数字转换前端

IF 4.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-08-25 DOI:10.1109/TCSII.2025.3602634

Jiayu Kuang;Mingyi Chen

{"title":"基于当前域频分复用的多通道直接数字转换前端","authors":"Jiayu Kuang;Mingyi Chen","doi":"10.1109/TCSII.2025.3602634","DOIUrl":null,"url":null,"abstract":"Multi-channel multiplexing front-ends based on current domain-frequency division multiplexing (CD-FDM) can alleviate the contradiction between higher single-channel power and the number of channels. Direct digital conversion (DDC) architecture eliminates the amplification stage, saving power consumption and area. However, research on multi-channel DDC is still lacking up to date. This brief demonstrates a four-channel CD-FDM DDC front-end for the first time. The prototype was fabricated in a 180 nm BCD process, occupying a core area of 1.602 mm2. The measurement shows a total harmonic distortion (THD) of 0.073% at a 260 mVpp input. The signal-to-noise-and-distortion ratio (SNDR) and dynamic range (DR) are 54.55 dB and 62.52 dB, respectively. The integrated noise from 0.5 Hz to 9.77 kHz is measured at <inline-formula> <tex-math>$5.79~\\mu $ </tex-math></inline-formula> Vrms, corresponding to a 9.34 noise efficiency factor (NEF). The experimental results demonstrate it to be a promising candidate for multi-channel artifacts-tolerant front-ends with high compactness as well as high energy efficiency.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 10","pages":"1373-1377"},"PeriodicalIF":4.9000,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Multi-Channel Direct-Digital-Conversion Front-End Based on Current-Domain Frequency Division Multiplexing\",\"authors\":\"Jiayu Kuang;Mingyi Chen\",\"doi\":\"10.1109/TCSII.2025.3602634\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Multi-channel multiplexing front-ends based on current domain-frequency division multiplexing (CD-FDM) can alleviate the contradiction between higher single-channel power and the number of channels. Direct digital conversion (DDC) architecture eliminates the amplification stage, saving power consumption and area. However, research on multi-channel DDC is still lacking up to date. This brief demonstrates a four-channel CD-FDM DDC front-end for the first time. The prototype was fabricated in a 180 nm BCD process, occupying a core area of 1.602 mm2. The measurement shows a total harmonic distortion (THD) of 0.073% at a 260 mVpp input. The signal-to-noise-and-distortion ratio (SNDR) and dynamic range (DR) are 54.55 dB and 62.52 dB, respectively. The integrated noise from 0.5 Hz to 9.77 kHz is measured at <inline-formula> <tex-math>$5.79~\\\\mu $ </tex-math></inline-formula> Vrms, corresponding to a 9.34 noise efficiency factor (NEF). The experimental results demonstrate it to be a promising candidate for multi-channel artifacts-tolerant front-ends with high compactness as well as high energy efficiency.\",\"PeriodicalId\":13101,\"journal\":{\"name\":\"IEEE Transactions on Circuits and Systems II: Express Briefs\",\"volume\":\"72 10\",\"pages\":\"1373-1377\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2025-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Circuits and Systems II: Express Briefs\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/11141448/\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Circuits and Systems II: Express Briefs","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11141448/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

摘要

基于当前域频分复用（CD-FDM）的多路复用前端可以缓解单路功率高与通道数多之间的矛盾。直接数字转换（DDC）架构省去了放大级，节省了功耗和面积。然而，目前对多通道直接数据中心的研究还比较缺乏。本文首次演示了一个四通道的CD-FDM DDC前端。该原型机采用180 nm的BCD工艺制造，核心面积为1.602 mm2。测量结果表明，在260 mVpp的输入下，总谐波失真（THD）为0.073%。信噪比（SNDR）和动态范围（DR）分别为54.55 dB和62.52 dB。从0.5 Hz到9.77 kHz的综合噪声测量值为5.79~\mu $ Vrms，对应于9.34的噪声效率因子（NEF）。实验结果表明，它是一种具有高紧凑性和高能效的多通道伪像容忍前端的理想选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

A Multi-Channel Direct-Digital-Conversion Front-End Based on Current-Domain Frequency Division Multiplexing

Multi-channel multiplexing front-ends based on current domain-frequency division multiplexing (CD-FDM) can alleviate the contradiction between higher single-channel power and the number of channels. Direct digital conversion (DDC) architecture eliminates the amplification stage, saving power consumption and area. However, research on multi-channel DDC is still lacking up to date. This brief demonstrates a four-channel CD-FDM DDC front-end for the first time. The prototype was fabricated in a 180 nm BCD process, occupying a core area of 1.602 mm2. The measurement shows a total harmonic distortion (THD) of 0.073% at a 260 mVpp input. The signal-to-noise-and-distortion ratio (SNDR) and dynamic range (DR) are 54.55 dB and 62.52 dB, respectively. The integrated noise from 0.5 Hz to 9.77 kHz is measured at

$5.79~\mu $

Vrms, corresponding to a 9.34 noise efficiency factor (NEF). The experimental results demonstrate it to be a promising candidate for multi-channel artifacts-tolerant front-ends with high compactness as well as high energy efficiency.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.