Analog-Digital Mixed-Signal LSI design for Communication Applications

适用于通信应用的模数混合信号 LSI 设计

• 批准号: 14550317
• 负责人: KOBAYASHI Haruo
• 金额: $ 1.6万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550317/
• 关键词: AD Converter; Sampling Circuit; Power Supply Circuit; LSI Tester; CMOS; Receiver; Transmitter; スイッチング電源回路; チャージポンプ電源回路; CMOS AD変換回路; AD変換器誤差補正; インターリーブAD変換回路

(1)We have developed signal processing techniques to improve SNR of complex bandpass delta-sigma AD modulators for wireless LAN, Bluetooth applications.(2)We have developed algorithms to evaluate ADCs for communication applications ; these can be incorporated in mixed-signal LSI testers.(3)We have analyzed the finite clock slope effects for CMOS sampling circuits ; we have derived SDR formula due to the effects, and clarified that NMOS differential samplers would be the least insensitive to them.(4)We have derived explicit transfer functions of RC polyphase filters and complex bandpass fillers.(5)We have designed high-speed low-power CMOS ADCs.(6)We have developed a SFDR improvement technique in Cartesian transmitter ; we propose to use I, Q-path dynamic matching technique to make the spurious spread in frequency domain.(7)We have investigated the inrush-current in charge pump power supply circuits at the start-up time. Based on the investigation, we have proposed its countermeasure and also verified its effectiveness by experiments.

(1)We已经开发了信号处理技术，以提高无线LAN、蓝牙应用的复带通Δ-Σ AD调制器的SNR。(2)We开发了用于评估通信应用ADC的算法;这些算法可用于混合信号LSI测试仪。(3)We分析了CMOS采样电路的有限时钟斜率效应，推导了该效应的SDR公式，阐明了NMOS差分采样器对有限时钟斜率的不敏感性最小。(4)We导出了RC多相滤波器和复带通滤波器的显式传递函数。(5)We设计了高速低功耗CMOS ADC。(6)We提出了一种改进笛卡尔发射机SFDR的方法，并提出了采用I、Q通道动态匹配技术，使杂散在频域得到扩展。(7)We研究了启动时电荷泵电源电路中的涌入电流。在此基础上，提出了相应的对策，并通过实验验证了其有效性.

项目成果

Y.Motoki, H.Sugawara, H.Kobayashi, T.Komuro, H.Sakayori: "Multi-Tone Curve Fitting Algorithms for Communication Application ADC Testing"Electronics and Communication in Japan : Part 2, Wiley Periodicals Inc.. vol.86, no.8. 1-11 (2003)

Y.Motoki、H.Sukawara、H.Kobayashi、T.Komuro、H.Sakayori：“用于通信应用 ADC 测试的多色调曲线拟合算法”日本电子与通信：第 2 部分，Wiley periodicals Inc. vol.86

T.Myono, T.Suzuki, A.Uemoto, S.Kawai, T.Iizima N.Kuroiwa, H.Kobayashi: "High-Efficiency Charge-Pump Circuits which use a O.5Vdd-Step Pumping Method"IEICE Trans. on Fundamentals. Vol.E86-A, no.2. 371-380 (2003)

T.Myono、T.Suzuki、A.Uemoto、S.Kawai、T.Iizima N.Kuroiwa、H.Kobayashi：“使用 O.5Vdd 步泵浦方法的高效电荷泵电路”IEICE Trans。

T.Daimon, H.Sadamura, T.Shindou, H.Kobayashi, et al.: "Spread-Spectrum Clocking in Switching Regulators for EMI Reduction"IEICE Fundamentals. vol.E86-A, no.2. 371-380 (2003)

T.Daimon、H.Sadamura、T.Shindou、H.Kobayashi 等人：“用于降低 EMI 的开关稳压器中的扩频时钟”IEICE 基础知识。

H.San, H.Kobayashi, S.Kawakami, N.Kuroiwa: "A Noise-Shaping Algorithm of Multi-bit DAC Nonlinearities in Complex Bandpass Δ SAD Modulators"IEICE Fundamentals. vol.E87-A, no.4. 792-800 (2004)

H.San、H.Kobayashi、S.Kawakami、N.Kuroiwa：“复杂带通 Δ SAD 调制器中的多位 DAC 非线性噪声整形算法”IEICE 基础知识，第 E87-A 卷，第 4 期。 800 (2004)

H.Kobayashi, H.Yagi, T.Komuro, H.Sakayori: "Algorithms for Digital Correction of ADC Nonlinearity"IEICE Trans. on Fundamentals of Electronics, Communications and Computer Sciences. vol.E86-A, no.2. 504-508 (2003)

H.Kobayashi、H.Yagi、T.Komuro、H.Sakayori：“ADC 非线性数字校正算法”IEICE Trans。