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2009 International Symposium on VLSI Design, Automation and Test最新文献

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Implementation and verification practices of DVFS and power gating DVFS和功率门控的实现和验证实践
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158084
Shi-Hao Chen, Jiing-Yuan Lin
Reducing the power supply voltage is an effective technique to reduce dynamic power. Power shut-off (PSO) is also a well-known approach to reduce leakage power. In practice, one may employ multi-supply voltage or dynamic voltage and frequency scaling (DVFS) techniques accompanied with power gating and multi-depth sleep modes to reduce both of dynamic and leakage power consumption. As the voltage domains (power domains) and sleep modes (power modes) are increased dramatically, it is difficult to plan interface logics such as level shifters and isolation cells completely by manual for each power domain. In this paper, we present an interface planning methodology, and take a DVFS and power gating design with over 50 power domains and 80 power modes to demonstrate the verification challenges and our solutions. Besides, we propose a “seamless” interface control circuit for PSO and DVFS designs. By using the circuit, the designs in the power on domain don't feel any data change when the opposite power domain is powered off.
降低电源电压是降低动态功率的有效方法。电源切断(PSO)也是一种众所周知的减少泄漏功率的方法。在实践中,可以采用多电源电压或动态电压和频率缩放(DVFS)技术,并辅以功率门控和多深度睡眠模式,以降低动态功耗和泄漏功耗。随着电压域(功率域)和睡眠模式(功率模式)的急剧增加,很难完全手动规划每个功率域的电平移位器和隔离单元等接口逻辑。在本文中,我们提出了一种接口规划方法,并采用具有50多个功率域和80种功率模式的DVFS和功率门控设计来演示验证挑战和我们的解决方案。此外,我们还提出了一种用于PSO和DVFS设计的“无缝”接口控制电路。通过使用该电路,当另一个电源域断电时,处于上电域的设计不会感觉到任何数据变化。
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引用次数: 13
Low-power 48-GHz CMOS VCO and 60-GHz CMOS LNA for 60-GHz dual-conversion receiver 用于60ghz双转换接收机的低功耗48ghz CMOS VCO和60ghz CMOS LNA
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158102
Yo‐Sheng Lin, Tien-Hung Chang, Chang‐Zhi Chen, Chi-Chen Chen, H. Yang, S. Wong
A low-power low-phase-noise 48-GHz CMOS LC voltage-control oscillator (VCO) and a low-power 60-GHz CMOS low-noise amplifier (LNA) for 60-GHz dual-conversion receiver are reported. The VCO dissipated 5.556 mW power, and achieved state-of-the-art phase noise of −105 dBc/Hz at 1-MHz offset from 47.84 GHz. The corresponding figure-of-merit (FOM) was −191.1 dBc/Hz, which is better than those of the reported CMOS LC VCOs around 48 GHz in the literature. Besides, the LNA consumed 21.4 mW power, and achieved input return loss (S11) of −10.6∼ −37.4 dB, voltage gain (AV) of 10.7∼ 18.8 dB, reverse isolation (S12) of −43.5∼ −48.1 dB, input referred 1-dB compression point (P1dB-in) of −16.2∼ −20.8 dBm, and input third-order inter-modulation point (IIP3) of −4∼ −7.5 dBm over the 57-64-GHz-band of interest.
报道了一种低功耗低相位噪声的48ghz CMOS LC压控振荡器(VCO)和用于60ghz双转换接收机的低功耗60ghz CMOS低噪声放大器(LNA)。VCO的功耗为5.556 mW,在47.84 GHz的1 mhz偏移时,相位噪声为- 105 dBc/Hz。相应的品质因数(FOM)为- 191.1 dBc/Hz,优于文献中报道的48 GHz左右的CMOS LC压控振荡器。此外,LNA功耗为21.4 mW,在57-64- ghz频段内实现了−10.6 ~−37.4 dB的输入回波损耗(S11)、10.7 ~ 18.8 dB的电压增益(AV)、−43.5 ~−48.1 dB的反向隔离(S12)、−16.2 ~−20.8 dBm的输入参考1-dB压缩点(P1dB-in)和−4 ~−7.5 dBm的输入三阶互调点(IIP3)。
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引用次数: 10
Microscopic wireless - Exploring the boundaries of ultra low-power design 微观无线-探索超低功耗设计的边界
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158081
J. Rabaey
The continuous reduction of size, and cost of wireless transceivers pretty soon will allow for every appliance, component or object to be networked (“The Internet of Things”). However, a substantial reduction in power dissipation by one or two orders of magnitude is still necessary. In this presentation, we identify the opportunities and challenges offered by technology evolution. While CMOS scaling offers some advantages, it also comes with additional burdens such as leakage and variability. Even more, energy per operation may not reduce very much once we reach the 32 nm node. Fortunately, other emerging devices such as RF-NEMS resonators or other elements emerging from the vast cauldron of nanotechnology may create new opportunities. We will show some example of ULP wireless transceivers created through a combination of aggressive technology utilization, use of novel technologies and innovative architectures. We believe that this combination is what it takes to continue the promise of electronics scaling.
无线收发器的尺寸和成本的不断缩小,很快将使每一个设备、组件或物体都能联网(“物联网”)。然而,功耗的大幅度降低一到两个数量级仍然是必要的。在本次演讲中,我们将指出技术发展带来的机遇和挑战。虽然CMOS缩放提供了一些优势,但它也带来了额外的负担,如泄漏和可变性。而且,一旦达到32nm节点,每次操作的能量可能不会减少很多。幸运的是,其他新兴设备,如RF-NEMS谐振器或其他来自纳米技术大锅的元素,可能会创造新的机会。我们将展示一些ULP无线收发器的例子,这些收发器是通过结合积极的技术利用、使用新技术和创新架构而创建的。我们相信,这种组合是继续电子缩放的承诺所需要的。
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引用次数: 0
A 200-Mb/s 10-mW super-regenerative receiver at 60 GHz 60 GHz 200mb /s 10mw超再生接收机
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158158
K. Liang, Luis Chen, C. Yue
This paper presents a low-power and high-speed super-regenerative receiver operating at the 60-GHz using 65-nm CMOS technology. The receiver uses the simplicity and power efficiency architecture for short-range communication. The proposed receiver achieves a data rate of 200 Mb/s with current consumption of 10 mA at a supply voltage of 1 V. The corresponding energy consumption of 50 pJ per receiver bit was an excellent tradeoff between cost, performance and power consumption.
本文提出了一种基于65纳米CMOS技术的60 ghz低功耗高速超再生接收机。该接收机采用简单、节能的结构进行短距离通信。所提出的接收器在1 V电源电压下,以10 mA的电流消耗实现200 Mb/s的数据速率。每个接收比特对应的能量消耗为50 pJ,在成本、性能和功耗之间取得了很好的平衡。
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引用次数: 5
A case study on MPEG4 decoder design with SystemBuilder 基于SystemBuilder的MPEG4解码器设计实例研究
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158168
S. Shibata, S. Honda, H. Tomiyama, H. Takada
This paper presents a case study on designing an MPEG4 decoder system using our system-level design toolkit named SystemBuilder. We start with a sequential specification of the MPEG4 decoder behavior and generate an FPGA implementation. In order to improve the performance, we refine the behavioral description based on the analysis result obtained by a profiler. Finally, we achieve over 15fps performance with pipelined hardware implementation.
本文介绍了一个使用系统级设计工具包SystemBuilder设计MPEG4解码器系统的案例研究。我们从MPEG4解码器行为的顺序规范开始,并生成一个FPGA实现。为了提高性能,我们在分析器分析结果的基础上对行为描述进行了细化。最后,我们通过流水线硬件实现实现了超过15fps的性能。
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引用次数: 3
Design of a dual-mode baseband receiver for 802.11n and 802.16e MIMO OFDM/OFDMA 802.11n和802.16e MIMO OFDM/OFDMA双模基带接收机设计
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158162
Charlie Hsiao, Chi-Yun Chen, T. Chiueh
A dual mode 2×2 MIMO OFDM & OFDMA receiver is implemented with shared hardware resources. This dual mode receiver functions well in both static and mobile channels. It follows the specification requirement of EWC HT PHY V1.27 and IEEE 802.16e-2005, and proposes a PHY baseband simulation model to meet the specifications. Additionally, equalization supports both static and dynamic channel estimation. 2×2 MIMO STBC and V-BLAST are supported as well. A low cost ICI (inter-carrier interference) cancellation hardware is also proposed.
采用共享硬件资源实现了一种双模2×2 MIMO OFDM & OFDMA接收机。这种双模接收机在静态和移动信道中都能很好地工作。遵循EWC HT PHY V1.27和IEEE 802.16e-2005的规范要求,提出了满足规范要求的PHY基带仿真模型。此外,均衡支持静态和动态信道估计。2×2也支持MIMO STBC和V-BLAST。提出了一种低成本的载波间干扰消除硬件。
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引用次数: 5
Segment based X-Filling for low power and high defect coverage 基于分段的x填充,低功耗和高缺陷覆盖率
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158159
Zhen Chen, D. Xiang, Boxue Yin
Many X-Filling strategies are proposed to reduce test power during scan based testing. Because their main motivation is to reduce the switching activities of test patterns in the test process, some of them are prone to reduce the test ability of test patterns, which may lead to low defect coverage. In this paper, we propose a segment based X-filling(SBF) technique to reduce test power using multiple scan chains, with minimal impact on defect coverage. Different from the previous filling methods, our X-filling technique is segment based and defect coverage aware. The method can be easily incorporated into traditional ATPG flow to keep capture power below a certain limit and keep the defect coverage at a high level.
在基于扫描的测试过程中,提出了许多x填充策略来降低测试功率。由于它们的主要动机是减少测试过程中测试模式的切换活动,其中一些容易降低测试模式的测试能力,从而可能导致较低的缺陷覆盖率。在本文中,我们提出了一种基于分段的x填充(SBF)技术,以减少使用多个扫描链的测试功率,对缺陷覆盖率的影响最小。与以前的填充方法不同,我们的x填充技术是基于分段的,并且可以识别缺陷覆盖率。该方法可以很容易地整合到传统的ATPG流程中,使捕获功率保持在一定限度以下,并使缺陷覆盖率保持在较高水平。
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引用次数: 3
An 18.7mW 10-GHz Phase-Locked Loop Circuit in 0.13-µm CMOS 一个18.7mW的10 ghz锁相环电路在0.13µm CMOS
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158136
I-Wei Tseng, Jen-Ming Wu
This paper presents a 10-GHz phase-locked loop (PLL) design with low power for high speed networking. A mixed design of Current Mode Logic (CML) and True Single Phase Clock (TSPC) logic is presented to reduce the power consumption of the frequency divider. With gain-boosting design in the charge pump leads to low jitter and low reference spur. An additional diversity of VCO by user body bias is proposed to improve KVCO. The PLL circuit is fabricated in TSMC 0.13µm RF CMOS process. The chip occupies 1.03 × 0.91 mm2, draws less than 18.7mW from a 1.2V supply, and is −117.43dBc/Hz at an offset frequency of 1MHz from the carrier.
提出了一种用于高速网络的低功耗10ghz锁相环设计方案。为了降低分频器的功耗,提出了电流模式逻辑(CML)和真单相时钟(TSPC)逻辑的混合设计。电荷泵采用增益增强设计,具有低抖动和低参考杂散的特点。提出了一种基于用户身体偏差的额外VCO多样性来改善KVCO。锁相环电路采用台积电0.13µm射频CMOS工艺制作。该芯片占地1.03 × 0.91 mm2,在1.2V电源下的功耗小于18.7mW,在与载波的偏移频率为1MHz时的功耗为- 117.43dBc/Hz。
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引用次数: 6
Design of high-speed errors-and-erasures Reed-Solomon decoders for multi-mode applications 用于多模式应用的高速纠错和擦除里德-所罗门解码器设计
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158129
Y. Lu, Ming-Der Shieh, W. Kuo
A multi-mode Reed-Solomon (RS) decoder design based on the reformulated inversionless Berlekamp-Massey (riBM) algorithm is proposed to correct both errors and erasures for any RS code including shortened codes. Without degrading the resulting performance, we effectively improve the hardware utilization of decoder and simplify the routing network in conventional multi-mode decoder design. With the developed multi-mode arrangement, the proposed decoder possesses not only high-performance property but also simple and regular interconnect topology, making the decoder suitable for VLSI realization. Experimental results reveal that for code words of length n ≤ 255 with ν errors and ρ erasures correcting capability, 0≤ 2ν+ρ ≤ 16, the achievable throughput rate of the proposed decoder, implemented in TSMC 0.13µm 1P8M process, is 4Gbps at a maximum operating clock of 450MHz and the total gate count is 50K.
提出了一种基于改型无反转Berlekamp-Massey (riBM)算法的多模Reed-Solomon (RS)译码器设计,可对包括短码在内的任意RS码进行纠错和擦除。在不降低译码器性能的前提下,有效地提高了译码器的硬件利用率,简化了传统多模译码器设计中的路由网络。该解码器采用多模结构,不仅具有高性能,而且互连拓扑结构简单规则,适合大规模集成电路的实现。实验结果表明,对于长度n≤255且具有ν误差和ρ纠删能力(0≤2ν+ρ≤16)的码字,采用TSMC 0.13µm 1P8M工艺实现的解码器,在最大工作时钟为450MHz、总门数为50K时,可实现的吞吐量为4Gbps。
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引用次数: 3
A 6-bit 220-MS/s time-interleaving SAR ADC in 0.18-µm digital CMOS process 基于0.18µm数字CMOS工艺的6位220毫秒/秒时间交错SAR ADC
Pub Date : 2009-04-28 DOI: 10.1109/VDAT.2009.5158133
Chun-Cheng Liu, Yi-Ting Huang, Guan-Ying Huang, Soon-Jyh Chang, Chung-Ming Huang, Chih-Haur Huang
This paper reports a 6-bit 220-MS/s time-interleaving successive approximation register analog-to-digital converter (SAR ADC) for low-power low-cost CMOS integrated systems. The major concept of the design is based on the proposed set-and-down capacitor switching method in the DAC capacitor array. Compared to the conventional switching method, the average switching energy is reduced about 81%. At 220-MS/s sampling rate, the measured SNDR and SFDR are 32.62 dB and 48.96 dB respectively. The resultant ENOB is 5.13 bits. The total power consumption is 6.8 mW. Fabricated in TSMC 0.18-µm 1P5M Digital CMOS technology, the ADC only occupies 0.032 mm2 active area.
本文报道了一种用于低功耗低成本CMOS集成系统的6位220 ms /s时间交错逐次逼近寄存器模数转换器(SAR ADC)。设计的主要概念是基于在DAC电容阵列中提出的设置和关闭电容开关方法。与传统的开关方式相比,平均开关能量降低约81%。在220-MS/s采样速率下,测得的SNDR和SFDR分别为32.62 dB和48.96 dB。所得ENOB为5.13位。总功耗为6.8 mW。采用台积电0.18-µm 1P5M数字CMOS技术制造,ADC的有效面积仅为0.032 mm2。
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引用次数: 19
期刊
2009 International Symposium on VLSI Design, Automation and Test
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