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2016 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)最新文献

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A low-power single-ended 11-bit SA-ADC with 1 V supply voltage and 2 V input voltage range for CMOS image sensors 一款低功耗单端11位SA-ADC,电源电压为1v,输入电压范围为2v,用于CMOS图像传感器
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803989
Junbo Shim, Min-Kyu Kim, Seongkwan Hong, O. Kwon
We propose a low-power single-ended 11-bit successive approximation analog-to-digital converter (SA-ADC) for CMOS image sensors. The proposed SA-ADC uses a supply voltage of 1 V instead of 2 V for a 2 V input voltage range in order to reduce power consumption. The proposed ADC reduces the conversion time and area by sampling the input signal only twice and converting it to the most significant bit (MSB) and lower 10-bit without any additional analog circuit. A test chip with the proposed SA-ADC was fabricated using a 0.18 μm CMOS process technology. The measurement results show that the total power consumption of the proposed SA-ADC is 9.0 μW. The static and dynamic power consumptions using a 1 V supply voltage are reduced by 54% and 76%, respectively, compared with those using a 2 V supply voltage. In addition, the proposed SA-ADC achieves a short conversion time of 6.5 μs and occupies a small area of 320 μm × 270 μm. The measured DNL and INL are −0.53/+0.57 LSB and −0.91/+0.71 LSB, respectively.
我们提出了一种用于CMOS图像传感器的低功耗单端11位连续近似模数转换器(SA-ADC)。为了降低功耗,建议的SA-ADC在2v的输入电压范围内使用1v的电源电压而不是2v。所提出的ADC通过对输入信号进行两次采样并将其转换为最高有效位(MSB)和更低的10位,而无需任何额外的模拟电路,从而减少了转换时间和面积。采用0.18 μm CMOS工艺制作了SA-ADC测试芯片。测量结果表明,所设计的SA-ADC的总功耗为9.0 μW。与使用2v供电电压相比,使用1v供电电压的静态和动态功耗分别降低54%和76%。此外,SA-ADC的转换时间较短,仅为6.5 μs,占地面积较小,仅为320 μm × 270 μm。测得的DNL和INL分别为- 0.53/+0.57 LSB和- 0.91/+0.71 LSB。
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引用次数: 4
Binaural-cue-based noise reduction using multirate quasi-ANSI filter bank for hearing aids 使用多速率准ansi滤波器组用于助听器的双耳信号降噪
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803885
Huei-Shiuan Tang, C. Yang, Chih-Wei Liu, Chia-Cheng Chien
This paper presents a low-power and real-time noise reduction (NR) algorithm using 18-band 1/3-octave quasi-ANSI filter bank for binaural hearing aids. With aids of binaural cues and minima controlled recursive average (MCRA) approach, the proposed NR algorithm consists of a directional mask and an estimated mask. The directional mask exploits the interaural time difference (ITD) together with the interaural level difference (ILD) of two input sources to attenuate the lateral noise, while the estimated mask is used to further reduce the background noise and the coherence noise. Investigated by the circumstances with the −3 dB, 0 dB, and 3 dB, respectively, cocktail-party effect, the simulation results show that the proposed binaural NR algorithm gains an average of approximately 5.07 dB SNR improvement. Moreover, the speech intelligibility index (SII) performance is superior, comparing that with the state-of-the-art NR algorithms for hearing aids. The proposed binaural NR algorithm has been implemented in TSMC 90 nm CMOS high-VT technology. The chip design is operated by 288 KHz and consumes approximately 121.6 μW (@1 V). The chip design can be operated by 0.6 V for real-time processing 24 kHz audio. The simulated power consumption is approximately 64.52 μW for binaural hearing aids.
提出了一种基于18波段1/3倍频准ansi滤波器组的双耳助听器低功耗实时降噪算法。利用双耳线索和最小控制递归平均(MCRA)方法,提出的NR算法由方向掩码和估计掩码组成。方向掩模利用两个输入源的耳间时间差(ITD)和耳间电平差(ILD)来衰减横向噪声,同时利用估计掩模进一步降低背景噪声和相干噪声。分别在- 3 dB、0 dB和3 dB的鸡尾酒会效应情况下,仿真结果表明,所提出的双耳NR算法的信噪比平均提高约5.07 dB。此外,与最先进的助听器NR算法相比,语音清晰度指数(SII)性能优越。所提出的双耳NR算法已在台积电90nm CMOS高vt技术上实现。芯片设计工作电压为288 KHz,功耗约为121.6 μW (@1 V),芯片设计工作电压为0.6 V,可实时处理24 KHz音频。双耳助听器的模拟功耗约为64.52 μW。
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引用次数: 4
0.6-V, Sub-nW, second-order lowpass filters using flipped voltage followers 0.6 v, Sub-nW,二阶低通滤波器,使用翻转电压跟随器
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803947
C. Sawigun, P. Pawarangkoon
This paper presents a concept of using the flipped voltage follower as a 2nd-order lowpass filter. Combining two capacitors with the well-known two-transistor flipped voltage follower circuit, a single-branch transistorized gm-C filter, able to function from a low supply voltage, is obtained. Besides, the proposed filter can be configured as both single-ended and differential forms. Circuit simulation using 0.35-μm CMOS process shows that, to obtain a 100-Hz cutoff frequency with a 52.2-dB dynamic range, total capacitance of 36 pF and power consumption of 0.36 nW are required for the differential filter that operates in subthreshold region from a supply voltage of 0.6 V. Compared with the previously reported designs in the category of low-power biomedical filters, this proposed filter is the most power-efficient and operates from the lowest level of supply voltage.
本文提出了一种利用翻转电压从动器作为二阶低通滤波器的概念。将两个电容与众所周知的双晶体管翻转电压跟随电路相结合,得到了一个能够在低电源电压下工作的单支路晶体管gm-C滤波器。此外,所提出的滤波器可以配置为单端和差分形式。采用0.35 μm CMOS工艺进行的电路仿真表明,当电源电压为0.6 V时,差分滤波器工作在亚阈值区域,为获得100 hz的截止频率和52.2 db的动态范围,总电容为36 pF,功耗为0.36 nW。与之前报道的低功耗生物医学滤波器的设计相比,该滤波器是最节能的,并且在最低的电源电压水平下工作。
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引用次数: 12
Architectural modeling of a multi-tone/single-sideband serial link transceiver for lossy wireline data links 用于有损有线数据链路的多音/单边带串行链路收发器的架构建模
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803923
Gain Kim, Y. Leblebici
This paper presents a serial link transceiver (TRX) architecture that enables high-speed data transmission over a lossy backplane channel without the presence of equalization circuits. The proposed architecture employs multi-tone signaling to reduce inter-symbol interference (ISI) and to increase receiver (RX) timing margin. A single-sideband (SSB) modulation has also been employed for saving of required bandwidth per sub-channel, so as to minimize inter-channel interference (ICI). System-level simulation results show that the proposed TRX can easily transmit 20 Gb/s data stream over a lossy backplane channel that exhibits 28-dB attenuation at 10 GHz while requiring neither of continuous-time linear equalizer (CTLE) and decision feedback equalizer (DFE). By transmitting 3-to-5 Gb/s data stream over each of four sub-channels, at least 44% unit interval (UI) eye openings are achieved for all sub-channels when 20 Gb/s aggregate data is transmitted.
本文提出了一种串行链路收发器(TRX)架构,该架构可以在无均衡电路的情况下在有损耗的背板通道上实现高速数据传输。该架构采用多音信令来减少码间干扰(ISI)并增加接收机(RX)时间裕度。单边带(SSB)调制也被用于节省每个子信道所需的带宽,从而最小化信道间干扰(ICI)。系统级仿真结果表明,该TRX可以在10ghz时28db衰减的有损背板通道上轻松传输20gb /s数据流,同时不需要连续时间线性均衡器(CTLE)和决策反馈均衡器(DFE)。通过在四个子通道中的每个通道上传输3- 5gb /s的数据流,当传输20gb /s的聚合数据时,所有子通道至少实现44%的单位间隔(UI)眼开口。
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引用次数: 2
Live demonstration: CAN FD controller for in-vehicle network 现场演示:车载网络CAN FD控制器
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7804037
Jung Woo Shin, J. Oh, Sang Muk Lee, Seung Eun Lee
In this paper, we propose a controller for the Controller Area Network with Flexible Data-Rate (CAN FD), an automotive communication protocol that supports flexible data length. The CAN FD is suitable for in-vehicle communication networks that requires a high reliability and high data transmission rate among ECUs. Experimental results show that our controller receives data from virtual ECU through SPI and transmits the data to the CANFD bus, completing the communication successfully.
在本文中,我们提出了一种具有灵活数据速率(CAN FD)的控制器局域网控制器,CAN FD是一种支持灵活数据长度的汽车通信协议。CAN FD适用于需要高可靠性和高ecu间数据传输速率的车载通信网络。实验结果表明,控制器通过SPI接收来自虚拟ECU的数据,并将数据传输到CANFD总线,成功地完成了通信。
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引用次数: 5
A 3.5/7.0/14-Gb/s multi-rate clock and data recovery circuit with a multi-mode rotational binary phase detector 3.5/7.0/ 14gb /s多速率时钟和数据恢复电路,带多模旋转二进制鉴相器
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803966
Ki-Hyun Pyun, D. Kwon, W. Choi
A new type of multi-rate clock and data recovery (CDR) circuit is realized that can operate at multiple data rates of 3.5, 7.0 and 14-Gb/s. A multi-mode rotational binary phase detector supports full-rate, half-rate and quarter-rate CDR operation with only one voltage-controlled oscillator. A prototype CDR circuit implemented in 65nm CMOS technology successfully demonstrates the multi-rate operation with energy efficiency of 0.64pJ/bit and chip size of 0.017mm2, both of which are much less than those of conventional multi-rate CDR circuits.
实现了一种新型的多速率时钟和数据恢复(CDR)电路,可以在3.5、7.0和14gb /s的多种数据速率下工作。多模式旋转二进制鉴相器支持全速率,半速率和四分之一速率CDR操作,只有一个电压控制振荡器。采用65nm CMOS技术实现的CDR原型电路成功地实现了多速率运行,能量效率为0.64pJ/bit,芯片尺寸为0.017mm2,两者都比传统的多速率CDR电路小得多。
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引用次数: 1
A systematic methodology for design and analysis of approximate array multipliers 设计和分析近似阵列乘法器的系统方法
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803973
Takahiro Yamamoto, Ittetsu Taniguchi, H. Tomiyama, S. Yamashita, Yuko Hara-Azumi
Approximate computing is considered as a promising approach to design of power-or area-efficient digital circuits. This paper proposes a systematic methodology for design and analysis of approximate array multipliers. Our methodology systematically designs a series of approximate array multipliers with different area, delay and accuracy characteristics so that an LSI designer can select the one which best fits to the requirements of her/his applications. Our experiments explore the trade-offs among area, delay and accuracy of the approximate multipliers.
近似计算被认为是设计低功耗或低面积数字电路的一种很有前途的方法。本文提出了一种设计和分析近似阵列乘法器的系统方法。我们的方法系统地设计了一系列具有不同面积、延迟和精度特性的近似阵列乘法器,以便LSI设计人员可以选择最适合其应用要求的乘法器。我们的实验探讨了近似乘法器的面积、延迟和精度之间的权衡。
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引用次数: 7
Efficient hole filling and depth enhancement based on texture image and depth map consistency 基于纹理图像和深度图一致性的有效孔填充和深度增强
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803930
Ting-An Chang, Jung-Ping Kuo, J. Yang
Structured-light RGB-D cameras are commonly used to capture depth images, which convey the per-pixel depth information in a scene. However, these cameras often produce regions with missing pixels. The missing pixel regions, which refer to holes, will not contain any depth information for the depth image. This reason would lead the performance to degrade seriously in modern-day three-dimensional (3D) video applications. Therefore, how to effectively utilize image information and depth maps become more and more important. In this paper, we propose adaptive texture-similarity-based hole filling (ATSHF) and adaptive texture-similarity-based depth enhancement (ATSDE). The proposed system, which is used for the enhancement of depth maps, is achieved by suppressing the noise, filling holes and sharpening object edges simultaneously. Experimental results demonstrate that the proposed method provides a superior performance, especially around the object boundary. Beside, we compare with the other state-of-the-art methods about the image and the depth map enhancement.
结构光RGB-D相机通常用于捕获深度图像,它传达场景中的每像素深度信息。然而,这些相机经常产生缺少像素的区域。缺失的像素区域(指孔)将不包含深度图像的任何深度信息。在现代三维(3D)视频应用中,这个原因会导致性能严重下降。因此,如何有效地利用图像信息和深度图变得越来越重要。本文提出了基于纹理相似度的自适应钻孔填充(ATSHF)和基于纹理相似度的自适应深度增强(ATSDE)。该系统通过抑制噪声、填充孔洞和锐化物体边缘来实现深度图的增强。实验结果表明,该方法具有较好的性能,特别是在目标边界附近。此外,我们还比较了目前最先进的图像增强方法和深度图增强方法。
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引用次数: 1
Low-power counter for column-parallel CMOS image sensors 用于列并行CMOS图像传感器的低功耗计数器
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7804028
Jong-Seok Kim, Jin-O. Yoon, B. Choi
A low-power counter (LPC) for column-parallel CMOS image sensors (CISs) is presented. The proposed LPCs can reduce the number of switching events of D-flip-flop (DFF) in the counter by 50% compared to the traditional counter. The simulation results with 200 MHz of clock signal show that the power consumption of the traditional counter is 55.7 μW, and the proposed LPC is 27.9 μW.
提出了一种用于柱并行CMOS图像传感器的低功耗计数器(LPC)。与传统计数器相比,LPCs可以将计数器中d触发器(DFF)的开关事件数量减少50%。在200 MHz时钟信号下的仿真结果表明,传统计数器功耗为55.7 μW, LPC功耗为27.9 μW。
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引用次数: 5
Lateral silicon nanowire based standard cell design for higher performance 横向硅纳米线为基础的标准电池设计,更高的性能
Pub Date : 2016-10-01 DOI: 10.1109/APCCAS.2016.7803915
Om. Prakash, Mohit Sharma, B. Anand, A. Saxena, S. Manhas, S. Maheshwaram
At deep nano-scale nodes Silicon Nanowire field effect transistor (SiNW FET) imparts best performance. However, analysis of SiNW FET based circuit design is lacking in existing literature. In this study, we design a standard cell library for advanced 10nm lateral SiNW FET technology in super threshold regime. For this, we create a Verilog-A compact model. Our compact Verilog-A model includes all the short channel effect as well as the geometrical dependent parasitics, which are crucial for short channel devices. The model is well calibrated with TCAD and reported fabricated data. The standard cell library developed comprise INVERTER, NAND, and NOR gate cells. Finally, we compared the standard cell performance to FinFET based standard cell. We found that the Si NW CMOS based standard cells have ∼3–4X, ∼2–3X, and 3X performance in terms of power dissipation, energy-delay product and power delay product respectively compared to FinFET based designs.
在深纳米级节点上,硅纳米线场效应晶体管(SiNW FET)具有最佳性能。然而,现有文献缺乏对基于SiNW场效应管的电路设计的分析。在这项研究中,我们设计了一个标准细胞库,用于超阈值状态下先进的10nm横向SiNW场效应管技术。为此,我们创建了Verilog-A紧凑型模型。我们紧凑的Verilog-A模型包括所有的短通道效应以及几何相关的寄生效应,这对短通道器件至关重要。该模型是很好的校准与TCAD和报告的虚构数据。开发的标准单元库包括逆变器、NAND和NOR栅极单元。最后,我们比较了标准电池与基于FinFET的标准电池的性能。我们发现,与基于FinFET的设计相比,基于Si NW CMOS的标准电池在功耗、能量延迟积和功率延迟积方面分别具有~ 3-4X、~ 2-3X和3X的性能。
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引用次数: 1
期刊
2016 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)
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