The noise function of pre - amplifier is also studied. Some low noise circuit design criteria are concluded .
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。
Low noise, high linearity RF front end circuit is the key of the whole RF receiver system design.
低噪声、高线性度的射频前端设计是整个射频接收机系统电路设计中的关键。
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.
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。
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.
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。
The module design contains transmission line, bias and APC circuit of LD, low noise and high linearity RF circuit, FSK modern, monitor and control circuit design and PCB layout.
本文重点进行了光模块主要的电路包括传输线、LD偏置电路与APC电路、低噪声高线性射频电路、FSK调制与解调功能电路与监视控制功能电路的设计。
The chapter five gives the low-noise design techniques of PCB, from choosing the type of components to layout of the circuit.
第五章是电路的抗干扰性设计，包括元件种类的选择、PCB设计电路布线上需要注意的问题。
The chapter five gives the low-noise design techniques of PCB, from choosing the type of components to layout of the circuit.
第五章是电路的抗干扰性设计，包括元件种类的选择、PCB设计电路布线上需要注意的问题。
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