电容积分器 meaning in English
capacitance integrator
Examples
- And the ways to optimize the circuit architecture , minimize the circuit nonidealities and improve the circuit performance are analyzed combined with the characteristics of the modulator architecture . based on it , the switched - capacitor integrator , class a amplifier , nonoverlap clock , voltage reference , comparator , feedback dac have been designed . in the end , the layout design is shown
调制器采用全差分开关电容电路实现,并根据系统结构特点就如何优化电路结构、克服电路中存在的非理想特性、提高电路性能作了具体分析,在此基础上完成了开关电容积分器(开关、电容、运算放大器) 、参考电压源、比较器、两相非交叠时钟、反馈dac等模块的电路结构和参数设计。 - The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage , the modulator is implemented with fully differential switched - capacitor circuits . and then , the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail , i . e . , ota , switched - capacitor integrator , quantizer , two - phase non - overlapping clock signal , etc . , at the same time , these circuits will be simulated in spectre and hspice . at last , the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本论文中,首先介绍模数转换器的各种参数的意义,以及一阶sigma - delta调制器和高阶sigma - delta调制器的原理;给出解决高阶单环sigma - delta调制器不稳定性的方案,引入级联结构调制器,特别针对级联结构调制器中的失配和开关电容积分器的非理想特性进行详细的讨论;本设计的sigma - delta调制器采用2 - 1级联结构和一位量化器,调制器采用全差分开关电容电路实现;同时对整个调制器的各个模块进行了电路设计,包括跨导放大器、开关电容积分器、量化器、两相非交叠时钟等,并利用hspice和spectre仿真工具对这些电路进行仿真测试;最后,利用matlab软件和simulink工具对整个级联调制器进行行为级仿真。