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2022 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA)最新文献

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A statistics-based background capacitor mismatch calibration algorithm for SAR ADC 基于统计的SAR ADC背景电容失配校正算法
Zhiqiang Luo, Peng Wang, Fule Li, Chun Zhang, Zhihua Wang
This paper presents a statistics-based background capacitor mismatch calibration algorithm for successive approximation register (SAR) analog-to-digital converter (ADC). The calibration algorithm is capable of detecting capacitor mismatch errors based on statistical principles and signal correlation is eliminated by introducing additional dummy capacitors, leading to fast convergence. This calibration increases the signal-to-noise-and-distortion ratio (SNDR) from 64.57dB to 82.03dB and achieves 29dB spurious-free dynamic range (SFDR) improvement. The simulated differential nonlinearity (DNL) and integral nonlinearity (INL) are +0.17/-0.13LSB and +0.36/-0.38LSB respectively.
针对逐次逼近寄存器(SAR)模数转换器(ADC),提出了一种基于统计的背景电容失配校正算法。该校正算法能够基于统计原理检测电容失配误差,并通过引入额外的虚拟电容消除信号相关性,收敛速度快。该校准将信噪比(SNDR)从64.57dB提高到82.03dB,并实现了29dB的无杂散动态范围(SFDR)改进。模拟的微分非线性(DNL)和积分非线性(INL)分别为+0.17/-0.13和+0.36/-0.38LSB。
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引用次数: 0
A Fully Synthesizable Injection Locked PLL with Dual-DCO Frequency Tracking in 55nm CMOS 一种完全可合成的双dco频率跟踪注入锁相环
Xuanchi Yu, Yan Chen, Gaofena Jin, Fei Feng, Xun Luo, Xiang Gao
This paper presents a fully synthesizable injection locked phase-locked loop (PLL), with a dual-DCO frequency tracking. The design has been fabricated in 55-nm CMOS and the layout is realized completely by digital flows. The proposed PLL covers a 0.2-to-1.2-GHz tuning range, achieving an absolute rms jitter (integrated from 100kHz to 100MHz) of 3.2ps at 4.3-mW power consumption, with a corresponding jitter-power figure of merit (FoM) of -224dB and the occupied core area is only 0.0225 mm2.
提出了一种完全可合成的注入锁相锁相环,具有双dco频率跟踪。该设计已在55纳米CMOS上制作,并完全通过数字流程实现布局。所提出的锁相环覆盖0.2至1.2 ghz调谐范围,在4.3 mw功耗下实现3.2ps的绝对有效值抖动(从100kHz到100MHz集成),相应的抖动功率值(FoM)为-224dB,占用的核心面积仅为0.0225 mm2。
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引用次数: 0
Accurate 3DIC thermal simulation for BEOL influence study 用于BEOL影响研究的精确3DIC热模拟
Han Yang, Bin Yan, Jianjun Sur, Jian Pang, Guanavao Li, Ouvana Keqing, Shuaiana Zhang
This present report mainly covers 2.5/3DIC system efficient and accurate thermal analysis. This report not only conducts the thermal coupling among dies, PCB, package at system level, but also performs accurate and detailed thermal analysis on specific hotspot regions. More importantly, the BEOL/RDL layer has a signicant impact on the juction temperature of the die, especially the hotspot region, which is often ignored in both industrial and academic area. Thus, the BEOL/RDL layer is incorporated into the thermal simulation by simplying the BEOL/RDL layer as the metal density. According to the simulation results, under steady-state conditions, the BEOL layer has a greater impact on the junction temperature, and under transient conditions, it has less impact on the transient temperature rise rate.
本报告主要介绍2.5/3DIC系统高效准确的热分析。本报告不仅在系统层面进行了芯片、PCB、封装之间的热耦合,而且对特定热点区域进行了准确、详细的热分析。更重要的是,BEOL/RDL层对模具的结温有显著的影响,特别是在热点区域,这在工业和学术领域往往被忽视。因此,通过将BEOL/RDL层简化为金属密度,将BEOL/RDL层纳入热模拟。仿真结果表明,在稳态条件下,BEOL层对结温的影响较大,而在瞬态条件下,BEOL层对瞬态温升速率的影响较小。
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引用次数: 0
DFT Architecture for Click-Based Bundled-Data Asynchronous Circuits 基于点击的捆绑数据异步电路的DFT体系结构
Ruimin Zhu, Zeyang Xu, Yuhao Huang, Shanlin Xiao, Zhiyi Yu
Event-driven asynchronous circuits are gaining attention because of their low power consumption and robustness. Among asynchronous circuits, the Bundled data (BD) circuit used by Loihi has attracted attention because it can obtain a similar area as a synchronous circuit. Click circuit is a mainstream BD circuit, but due to the lack of DFT (Design For Test) architecture, the Click-based asynchronous circuit cannot be widely used. This paper proposes a DFT architecture suitable for BD circuits, which can be accomplished using traditional EDA tools rather than developing new ones. This paper verifies the proposed DFT architecture on a five-stage pipeline processor based on the RISC-V instruction set. The result is 99.62% coverage for stuck-at faults, 1.8398% area overhead, and 6.2259% power overhead.
事件驱动异步电路由于其低功耗和鲁棒性而受到越来越多的关注。在异步电路中,Loihi使用的捆绑数据(BD)电路因其可以获得与同步电路相似的面积而受到关注。Click电路是一种主流的BD电路,但由于缺乏DFT (Design For Test)架构,基于Click的异步电路无法得到广泛应用。本文提出了一种适用于双相电路的DFT体系结构,它可以使用传统的EDA工具来完成,而无需开发新的EDA工具。本文在基于RISC-V指令集的五级流水线处理器上验证了所提出的DFT架构。结果是99.62%的卡故障覆盖率、1.8398%的面积开销和6.2259%的功率开销。
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引用次数: 0
A 77-101GHz 6-Bit Vector-Modulated Phase Shifter with Low RMS Error in 65nm SOI CMOS 基于65nm SOI CMOS的低RMS误差的77-101GHz 6位矢量调制移相器
Qing Zhang, Keping Wang
This paper presents a 77–101 GHz active 6-bit phase shifter based on a vector-modulated technique in 65 $n$ m SOI CMOS technology for W-band phased-array systems. Optimizations of the impedance-invariant variable gain amplifier (VGA) are performed to reduce the phase error and gain error among the phase states. In addition, a quadrature signal generator composed of a 90-degree hybrid and a pair of Marchand balun is exploited for wideband applications. The proposed phase shifter achieves 5.6° phase step, < 2.0° RMS phase error and < 0.8dB RMS gain error over 77–101 GHz. The total power consumption is 31mW and the core area of the phase shifter is only 0.2mm2.
本文提出了一种基于矢量调制技术的77-101 GHz有源6位移相器,用于w波段相控阵系统。对阻抗不变变增益放大器(VGA)进行了优化,以减小相位误差和相位状态间的增益误差。此外,一种由90度混合器和一对马尔尚平衡器组成的正交信号发生器被开发用于宽带应用。该移相器在77 ~ 101 GHz范围内实现了5.6°相位步进、< 2.0°RMS相位误差和< 0.8dB RMS增益误差。总功耗31mW,移相器的核心面积仅为0.2mm2。
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引用次数: 2
A Single-input Dual-output Three-level Buck Converter for SoC Applications 用于SoC应用的单输入双输出三电平降压转换器
Zhuoneng Li, Zhonamina Xue, Chenalona Liang, Yongchao Zhang, Mengqi Duan, Shangzhou Zhao, Xihao Liu, Zhuoqi Guo, Li Geng
This paper proposes a single-input dual-output (SIDO) three-level buck converter to meet the requirements of multi-voltage domain and high voltage stress for SoC applications. The topology is based on three-level buck with standard 1.8V devices, where only an additional power switch is added. By using this structure, the second output can be powered by a fly capacitor, and $V$CF calibration is achieved by the control loop for reliability issues. Hence the efficiency and the power density are enhanced with standard devices and reducing the number of power switches. Moreover, the control loop with error processor and driver module is demonstrated based on the topology analysis. Ultimately, the proposed converter is designed and fabricated with 0.18μm CMOS process, which handles the input range of 3.3-2.8V and dual-output of 1.8V and 1.2V with 96.9% peak efficiency. The power density is 2.557W/mm2, and the active area is only 0.49 mm2.
为了满足SoC应用中多电压域和高电压应力的要求,提出了一种单输入双输出(SIDO)三电平降压变换器。该拓扑基于标准1.8V器件的三电平降压,其中只增加了一个额外的电源开关。通过使用这种结构,第二个输出可以由飞电容供电,并且通过控制回路实现$V$CF校准,以解决可靠性问题。因此,采用标准器件提高了效率和功率密度,并减少了功率开关的数量。在拓扑分析的基础上,给出了带有误差处理器和驱动模块的控制回路。最后,采用0.18μm CMOS工艺设计制作了该变换器,其输入范围为3.3 ~ 2.8 v,双输出1.8V和1.2V,峰值效率为96.9%。功率密度为2.557W/mm2,有源面积仅为0.49 mm2。
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引用次数: 0
Low-Latency FPGA Design and Implementation of Hermitian Matrix Inversion Based on Partitioned Systolic Array for Massive MIMO 基于分区收缩阵列的大规模MIMO低延迟FPGA设计与实现
Ke Han, Dao-ben Li
Large-scale matrix inversion is widely used in massive Multiple Input Multiple Output (MIMO) beamforming systems, but matrix inversion is very complicated in hardware implementation. In this paper, Hermitian matrix decomposition method based on partitioned systolic array is proposed, and the computing structure of the algorithm is improved flexibly by utilizing the partitioned characteristics of large-scale matrix. We compare our method with existing FPGA-based technologies on Xilinx ZCU102 FPGA. The results of the experiment show that our method has better performance than existing techniques in resource utilization, device delay and maximum working frequency when the size of Hermitian matrix is 32 × 32, which is a typical size for MIMO applications.
大规模矩阵反演在大规模多输入多输出(MIMO)波束形成系统中得到了广泛的应用,但矩阵反演在硬件实现上非常复杂。本文提出了基于分区收缩阵列的厄米矩阵分解方法,利用大规模矩阵的分区特性,灵活改进了算法的计算结构。在Xilinx ZCU102 FPGA上,将该方法与现有基于FPGA的技术进行了比较。实验结果表明,当厄米矩阵的尺寸为32 × 32 (MIMO应用的典型尺寸)时,我们的方法在资源利用率、设备延迟和最大工作频率方面都优于现有技术。
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引用次数: 0
A 0.7-2.5GHz NB-loT/GNSS/BLE Hybrid PLL with PA Pulling Mitigation and Out-of-Band Phase Noise Reduction 一种0.7-2.5GHz NB-loT/GNSS/BLE混合锁相环,具有PA拉减和带外相位降噪功能
Jiahao Zhao, Xuansheng Ji, Su Han, Ziwei Wang, W. Rhee, Zhihua Wang
A 0.7-2.5GHz NB-IoT/GNSS/BLE hybrid PLL with a single D/VCO is implemented in 28nm CMOS. With careful frequency planning, the PA pulling effect is mitigated by using a multi-mode divider chain. A divider-by-2.5 relaxes the tuning range requirement of the D/VCO and mitigates the PA pulling for NB-IoT HB band, while a divider-by-6 is designed for NB-IoT LB. With an 8-tap FIR filtering method, a wideband fractional-N PLL is designed without increasing the out-of-band phase noise. The proposed PLL consumes the maximum 4.7mW with 0.9V supply. Experimental results show that the PLL meets the phase noise and spur requirements of the NB-IoT/GNSS/BLE standards.
采用28nm CMOS实现了一个0.7-2.5GHz带单D/VCO的NB-IoT/GNSS/BLE混合锁相环。通过仔细的频率规划,通过使用多模分频器链来减轻PA拉效应。2.5分频器放宽了D/VCO的调谐范围要求,减轻了NB-IoT HB频段的PA拉,而NB-IoT LB则设计了6分频器。采用8分频FIR滤波方法,设计了宽带分数n锁相环,而不会增加带外相位噪声。所提出的锁相环在0.9V电源下最大功耗为4.7mW。实验结果表明,该锁相环满足NB-IoT/GNSS/BLE标准的相位噪声和杂散要求。
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引用次数: 0
Hardware Based RISC-V Instruction Set Randomization 基于硬件的RISC-V指令集随机化
Sheng Zuo, Junjie Zhuang, Yao Liu, Mingyu Wang, Zhiyi Yu
Instruction set randomization has been proposed for many years as a strategy against code injection. However, most of the methods are based entirely on software, which is vulnerable to possible threats like key leakage or bypassing attack. The translation of instructions also brings the loss of performance. Some designs randomize the instruction set based on hardware, but using weak approaches which can be easily bypassed. In this paper, we propose a hybrid instruction set randomization with both compiler support and hardware extension on a RISC-V processor. We adopt AES-128 to randomize RISC-V instruction set with little performance loss. The design has been implemented on Xilinx AV7K325 FPGA board, the results shows that RISC-V instruction set is randomized with no changes in clock frequency, 1377 LUTs increase in resources and 0.38% performance overhead.
指令集随机化作为一种对抗代码注入的策略已经被提出很多年了。然而,大多数方法完全基于软件,容易受到密钥泄露或绕过攻击等潜在威胁。指令的翻译也带来了性能的损失。一些设计基于硬件随机化指令集,但使用了很容易被绕过的弱方法。本文在RISC-V处理器上提出了一种具有编译器支持和硬件扩展的混合指令集随机化方法。采用AES-128随机化RISC-V指令集,性能损失小。该设计已在Xilinx AV7K325 FPGA板上实现,结果表明,RISC-V指令集是随机化的,时钟频率不变,资源增加1377 lut,性能开销0.38%。
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引用次数: 1
A V-band Power Amplifier for Satellite Communications in 40-nm CMOS 用于卫星通信的40纳米CMOS v波段功率放大器
Hengzhi Wan, Dixian Zhao
This paper presents a V-band power amplifier (PA) with two stages. Each stage consists of a neutralized common-source amplifier pair, coupled with each other using a transformer. Implemented in 40-nm CMOS technology, the proposed two-stage PA achieves a measured small-signal gain of 16.8 dB at 47 GHz with a 3-dB bandwidth more than 6.5 GHz. The maximum 1-dB compressed output power (P1dB) is 12.2 dBm with a power-added efficiency at P1dB (PAE1dB) of 18% measured at 47 GHz; from 45 to 51 GHz, the measured P1dBis above 10 dBm under a 1.1-V supply voltage.
介绍了一种两级v波段功率放大器。每级由一个中和的共源放大器对组成,通过变压器相互耦合。采用40纳米CMOS技术实现的两级放大器在47 GHz时实现了16.8 dB的测量小信号增益,3db带宽超过6.5 GHz。最大1 db压缩输出功率(P1dB)为12.2 dBm,在47 GHz测量时P1dB (PAE1dB)的功率附加效率为18%;从45到51 GHz,在1.1 v电源电压下,测量到的p1dbm大于10 dBm。
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引用次数: 1
期刊
2022 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA)
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