针对低功耗电路设计的需求，提出了一种低功耗约束下CMOS低噪声放大器的设计方法，并与传统的设计方法进行了对比。
A design approach for low power CMOS low noise amplifier (LNA) is presented and it is compared with the traditional LNA design method.
由于生物电信号非常微弱，容易受量测环境及电路本身等因素所影响，故要求该放大器具有低噪声和低失调电压的性能。
Due to its relative low amplitude properties, the bioelectricity signal is easy influenced by surrounding factor, the amplifier with low noise and voltage offset is required.
适配电路中的多级并联放大电路、带通滤波器对试车过程中的随机干扰信号，尤其是振动引起的噪声具有很强的抑制作用。
The multi-parallel- magnification circuits and the band-pass filter can well restrain random interfering noise, especially generated by test run vibration.
通过对嗓声系数特性的研究，总结了前置放大电路低噪声设计准则。
The noise function of pre - amplifier is also studied. Some low noise circuit design criteria are concluded .
与一些音量控制置于输入端的电路不同，这个前级放大器的特征噪声能够随同信号一起衰减。
Any noise characteristic of the preamp circuit is attenuated along with the signal, unlike circuits where the volume control is before the input.
子电路包括低噪声放大器、射频滤波器、混频器、驱动放大器、功率放大器、中频滤波器等。
The subcircuits consist of the low noise amplifier, RF filter, mixer, driver amplifier, image filter, power amplifier, transmit-receive switch and if filter and so on.
电路采用电容负反馈互导放大器(CTIA)及相关双取样(CDS)结构，有利于减小电路的噪声。
The adoption of capacitor feedback transimpedance amplifier (CTIA) and correlated double sampling (CDS) structure helps to reduce the noise of the circuit.
在带宽限制放大器电路的设计中使用了全差分运放结构，能有效抑制电路的共模噪声。
A fully differential operational amplifier is introduced in the design of wideband limiting amplifier which can restrain the common noise effectively.
测量系统采用了微波信号源、低噪声放大器和微波检波器等组成微波电路单元。
The microwave circuit unit is composed of microwave signal resource, low noise amplifier and microwave detector.
系统包括CCD驱动脉冲产生电路、低噪声测量放大电路、自适应比较电路、单片机控制电路以及上位机处理程序。
The system consists of driving pulse generating circuit for CCD, instrumental amplifier with low noise, MCU controlling circuit and PC program for dealing with the data conveyed by MCU.
该电路采用二次变频低中频结构，集成了低噪声放大器、上变频混频器、下变频混频器等模块。
An RF front-end circuit for a fully integrated CMOS DTV tuner is presented in this paper, where double-conversion low IF architecture is employed.
此外本文参照高频电路的设计特点，分析了低场磁共振信号放大电路的噪声干扰来源，给出了一些减少噪声干扰的具体措施。
By imitating of the design characters of the high frequency circuit, the origin and the classification of the noise interferences of the low field NMR circuit system are analyzed.
简要介绍了运算放大器电路包含的噪声类型。
Different noise types in operational amplifier (op-amp) circuits are described.
介绍了宽带低噪声agc放大器的设计方法，并结合具体应用进行了电路设计和实现。
In this paper, design method for wide band and low noise AGC amplifier is intro-duced. Circuit design and implementation is presented based on some application.
功率放大器（PA）和低噪声放大器（LNA）模块是射频（RF）混合集成电路的重要组成部分。
Power amplifier (PA) and low noise amplifier (LNA) modules are important components of RF hybrid IC's.
对于直接放大电阻热噪声的方法，给出一个相对简单的结构，并对电路进行了优化设计。
For the method of directly amplifying resistor thermal noise, a relatively easier structure is proposed, and the critical circuits are optimized.
该电路应用斩波技术，大大降低了低频噪声，实现了对低频微弱信号的放大。
The circuit employs chopper technique which can effectively reduce the low frequency noise and amplify the weak signals.
第三章为低噪声放大器优化设计与应用，设计和实现了两种不同低噪放电路并且对其级联方式进行了研究。
In chapter three, the designation and application of the low noise amplifiers (LNA) are optimized, and two different LNAs circuits and their cascade connection are both studied.
讨论了负载电阻噪声对负反馈放大电路噪声性能的影响。
The effect of a load resistor noise on the noise property of a negative feedback amplifier is also discussed.
作为全差分微加速度计检测电路的电荷放大器，必须进行低噪声设计。
The charge amplifier for the interface circuit of full different accelerometer needs lower noise design.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
放大器的驱动能力限制了电阻的最小值，全电路噪声限制电阻最大值。
This amplifier's drive capability limits the resistor's minimum value, and the overall circuit noise limits the maximum value.
本文介绍一种将微波低频段分布参数电路与超微细薄膜工艺结合的微型化、低噪声、高选择性的放大模组。
This module of distributed parameters used in the lower microwave band is skillfully combined with an ultra-fine thin-film technology.
如果用这样的放大器设计电路，首先应该挑选合适的反馈电阻，各厂商的规格和电路噪声增益。
If you design this circuit with such an amp, you would first pick the optimum feedback resistor, per the manufacturer's specification and the circuit's noise gain.
采用同相放大电路成功实现了对微弱调制光电信号的接收，并采取简单但行之有效的方法滤除了偏置电压引入的噪声干扰；
The laser beam modulation frequency has been increased to achieve better accuracy. The circuit has been designed in a simple manner to reduce unexpected error and debugging complexity.
在电路设计上采用锁相放大器来提取微弱信号，最大限度的抑制噪声，提高系统的信噪比。
For the signals are very weak, the lock-in amplifier is employed to extract the signals in the circuit design. It can inhabit the noise in the most and maximize the signal-to-noise.
无需其他额外的支持电路，利用该评估板即可实现对CDMA和GPS低噪声放大器（LNA）和下变频混频器的评估。
The evaluation kits allow the evaluation of the CDMA and GPS low-noise amplifiers(LNA) , as well as the CDMA and GPS down-converter mixers , without the use of any additional support circuitry.
本发明提供一种具有自动增益控制功能的无线接收器及自动增益控制方法，其中，该接收电路包含可程序化增益放大器以及低噪声放大器。
A wireless receiver with automatic gain control and a method for automatic gain control of a receiving circuit utilized in a wireless receiver are provided.
电压反馈放大器的电路带宽等于增益带宽积除以噪声增益。
This circuit's bandwidth, with a voltage-feedback amp, equals the gain-bandwidth product divided by the noise gain.
电压反馈放大器的电路带宽等于增益带宽积除以噪声增益。
This circuit's bandwidth, with a voltage-feedback amp, equals the gain-bandwidth product divided by the noise gain.
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