Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits最新文献

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A four transistor CMOS active pixel sensor with high dynamic range operation 具有高动态范围操作的四晶体管CMOS有源像素传感器
Che-I Lin, Cheng-Hsiao Lai, Y. King
{"title":"A four transistor CMOS active pixel sensor with high dynamic range operation","authors":"Che-I Lin, Cheng-Hsiao Lai, Y. King","doi":"10.1109/APASIC.2004.1349425","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349425","url":null,"abstract":"A new CMOS APS using standard CMOS logic technology is proposed to allow high dynamic range operation. The new cell is constructed by incorporating one additional transistor to the conventional three transistor APS. The experimental results demonstrate that extended dynamic range is obtained when operates with a ramped reference voltage source. The cell offers flexible nonlinear transfer characteristics, which can be designed by modifying the operational timing diagram. Furthermore, charge collection on the parasitic capacitor allows for the use of the signal due to hole accumulation. An alternative operation of this cell is also proposed to provide enhanced characteristics in both its sensitivity and dynamic range.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130042151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Three-dimensional round-robin scheduler for advanced input queuing switches 三维轮循调度先进的输入队列开关
G. Jeong, B. Lee
{"title":"Three-dimensional round-robin scheduler for advanced input queuing switches","authors":"G. Jeong, B. Lee","doi":"10.1109/APASIC.2004.1349469","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349469","url":null,"abstract":"This paper presents a new, three-dimensional round-robin scheduler that provides high throughput and fair access in an advanced input-queued packet switch using shared input buffers. We consider an architecture in which each input port group shares a common buffer and maintains a separate queue for each output. In an N /spl times/ N switch, our scheduler determines which queue in the total M /spl times/ N input queues is served during each time slot where M is the number of common buffers. We suppose that each common buffer has K input ports and K output ports, and manages N output queues. The 3DRR scheduler determines M /spl times/ K queues in every K (M) cycle when K >= M (K <= M), and provides massively parallel processing for the applications of high-speed switches with a large number of ports. The proposed round-robin scheduler can be implemented using duplicated simple logic components allowing very high-speed implementation.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134052827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A parallel flop synchronizer for bridging asynchronous clock domains 用于桥接异步时钟域的并行触发器同步器
Suk-Jin Kim, Jeong-Gun Lee, Kiseon Kim
{"title":"A parallel flop synchronizer for bridging asynchronous clock domains","authors":"Suk-Jin Kim, Jeong-Gun Lee, Kiseon Kim","doi":"10.1109/APASIC.2004.1349443","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349443","url":null,"abstract":"Inter-domain communications on a chip require a synchronizer to resolve the timing problems between an input and a clock of a destination. This paper presents a parallel flop synchronizer and its interface circuit for transferring asynchronous data between clock domains. The proposed scheme uses a bank of independent two-flops in parallel and supports a two-phase handshake protocol. Compared to the conventional two-flop synchronizer, performance analysis shows that the proposed synchronization can reduce latency up to one and a half of clock cycles while retaining its safety to a tolerable level.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115414948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A new RTL debugging methodology in FPGA-based verification platform 一种基于fpga验证平台的RTL调试方法
Sangjun Yang, H. Shim, Woo-Seung Yang, C. Kyung
{"title":"A new RTL debugging methodology in FPGA-based verification platform","authors":"Sangjun Yang, H. Shim, Woo-Seung Yang, C. Kyung","doi":"10.1109/APASIC.2004.1349442","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349442","url":null,"abstract":"In this paper we present a new RTL debugging methodology in FPGA-based verification platform. This method provides internal node probing in the co-simulation environment. Full observability is guaranteed using 32-bit scan module generated automatically. Most commercial debugging tools are limited to hundreds of internal nodes for the observability in the co-simulation. The proposed method increases the observability of design to 100%. Debugging feature named in RTL gives the benefits that designers feel more comfortable in RTL than in gate level since the signal names in gate level are complicated and incomprehensive. Designers can control the depth of probing in the design hierarchy. The overheads of area and time due to improving the design observability are turned to be small for a reasonable number of internal node probing.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117109461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
A fast and power-saving self-timed Manchester carry-bypass adder for Booth multiplier-accumulator design 一种用于布斯乘法器-蓄能器设计的快速省电的自定时曼彻斯特载波旁路加法器
I-Chyn Wey, Hwang-Cherng Chow, You-Gang Chen, A. Wen
{"title":"A fast and power-saving self-timed Manchester carry-bypass adder for Booth multiplier-accumulator design","authors":"I-Chyn Wey, Hwang-Cherng Chow, You-Gang Chen, A. Wen","doi":"10.1109/APASIC.2004.1349402","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349402","url":null,"abstract":"In this paper, a fast and power-saving self-timed Manchester Carry-Bypass Adder (MCBA) is proposed based on the property analysis of the MCBA completion signal. By using a new self-timed approach, the critical path in the summation array of Multiplier-Accumulator (MAC) can be removed without conventional dual MCBA chain circuit. As a result, the speed of the proposed self-timed MCBA can be improved 23.3% and save 56.8% power consumption. Finally, a 16-bit 16-bit+40-bit Booth MAC with this new self-timed MCBA is demonstrated at 2.5V, 150MHz in UMC 0.25/spl mu/m process with 71.28mW power only.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122491103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A low power 5Gb/s transimpedance amplifier with dual feedback technique 采用双反馈技术的低功耗5Gb/s跨阻放大器
I-Hsin Wang, Chung-Shun Liu, Shen-Iuan Liu
{"title":"A low power 5Gb/s transimpedance amplifier with dual feedback technique","authors":"I-Hsin Wang, Chung-Shun Liu, Shen-Iuan Liu","doi":"10.1109/APASIC.2004.1349479","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349479","url":null,"abstract":"This paper presents the design and implementation of a 5Gb/s transimpedance amplifier (TIA) with dual shunt-shunt feedback technique to enhance the circuit performance. Measured bandwidth is 4.9GHz and measured transimpedance gain is 60 dB /spl Omega/. The chip consumes only 8mW at 1.8V supply voltage and occupies 650 /spl mu/m /spl times/ 500 /spl mu/m in a 0.18 /spl mu/m CMOS process.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124899112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A dual-band IEEE 802.11a/b/g receiver front-end using half-IF and dual-conversion 采用半中频和双转换的双频IEEE 802.11a/b/g接收机前端
Chun-Chih Hou, C. Chang, Chorng-Kuang Wang
{"title":"A dual-band IEEE 802.11a/b/g receiver front-end using half-IF and dual-conversion","authors":"Chun-Chih Hou, C. Chang, Chorng-Kuang Wang","doi":"10.1109/APASIC.2004.1349499","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349499","url":null,"abstract":"This paper presents a dual-band receiver front-end architecture which combines the dual-conversion and half-IF techniques for IEEE 802.1la/b/g. The proposed architecture receives dual-band signal with single receiver chain to reduce components count such as the 2/sup nd/ down-conversion mixer and VCO. The required LO frequencies of the dual-band application can be synthesized by only one VCO in combination with a divide-by-four circuit. An LC tank aided mechanism of mixer is also proposed to deal with the flicker noise. The core portion of the front-end receiver has been fabricated in 1P6M 0.18 /spl mu/m CMOS technology. The delivered gain, noise figure, and IIP3 are 20 dB, 3.5 dB, and -13 dBm, respectively simulated. The chip occupies an area of 1.21 /spl times/ 1.46mm/sup 2/ and the power consumption is 24mW under the supply voltage of 1.8V.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122209261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Design and implementation of a routing switch for on-chip interconnection networks 片上互连网络路由交换机的设计与实现
Hsin-Chou Chi, Jia-Hung Chen
{"title":"Design and implementation of a routing switch for on-chip interconnection networks","authors":"Hsin-Chou Chi, Jia-Hung Chen","doi":"10.1109/APASIC.2004.1349507","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349507","url":null,"abstract":"One of the major challenges of system-on-chip (SoC) designs is the communication architecture between heterogeneous components possessing different characteristics. Most of the communication architectures for current SoC designs are based on buses. However, the bus architecture has its inherent limitations. A packet-switched network which delivers messages between communicating components has been proposed as the solution for next-generation SoC Such on-chip interconnection networks provide a chip-level communication infrastructure. In this paper, we present the design and implementation of a routing switch which is the key component for on-chip interconnection networks with mesh or torus topologies. In our design, separate buffers and lookahead routing are employed to effectively solve the blocking problems of packets in buffers. Our simulations show that the on-chip interconnection network with such routing switches outperforms that with conventional switches. We have implemented our switch in 0.25/spl mu/m technology with cell-based design. An initial version of the implementation of the switch can be run at approximately 100MHz.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131826100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
5 GHz SiGe front-end components for WLAN applications 用于WLAN应用的5 GHz SiGe前端组件
N. Song, Dohyong Kim, J. Burm
{"title":"5 GHz SiGe front-end components for WLAN applications","authors":"N. Song, Dohyong Kim, J. Burm","doi":"10.1109/APASIC.2004.1349498","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349498","url":null,"abstract":"5-GHz RF front-end components for IEEE 802.11a WLAN has been designed and fabricated using 0.5 /spl mu/m SiGe BiCMOS technology. The packaged LNA exhibited a noise figure of 2.5 dB with a gain of 16.5 dB at 5.15-5.35 GHz frequency range and an IIP3 of -10.5 dBm. The Rx/Tx mixers exhibited conversion gains of -2.1/-8.3 dB and IIP3s of 0.0/2.4 dBm, respectively. The DA achieved a very high gain of 26.5 dB and an OIP3 of 19.8 dBm. All the matching components were on-chip except the input DC block capacitors and LC output baluns. The effects of feedback resistance in the LNA on gain, input match, noise figure, and IP3 performance are investigated.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"49 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124256599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Arbitration latency analysis of the shared channel architecture for high performance multi-master SoC 高性能多主SoC共享信道架构的仲裁延迟分析
Jisuhn Suh, H. Yoo
{"title":"Arbitration latency analysis of the shared channel architecture for high performance multi-master SoC","authors":"Jisuhn Suh, H. Yoo","doi":"10.1109/APASIC.2004.1349506","DOIUrl":"https://doi.org/10.1109/APASIC.2004.1349506","url":null,"abstract":"We propose new analysis method to estimate the traffic performance of communication channel for system-on-chip (SoC). We define the channel utilization ratio, and we analyze the traffic performance of multi-master system-onchip on shared channel architecture by measure of the arbitration latency. This method is efficient to evaluate the traffic characteristics of the shared channel architecture. And this results offer the methods to optimize the parameter of the components to achieve high performance channel. To verify the efficiency of this method, we experiment the latency of single shared channel architecture by various conditions of components composing SoC. We simulated the effect of number of masters and 2 types of arbitration algorithm by using defined channel utilization ratio. In this analysis, it is found that the arbitration latency increases with the number of masters and channel utilization ratio. The arbitration algorithm affects the arbitration latency according to the number of masters. The throughput of data transaction is proportional to channel utilization ratio.","PeriodicalId":375715,"journal":{"name":"Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126497561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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