这是我做的可变程放大器，放大信号用，希望对大家有帮助。
This is my way to do variable amplifier, signal amplification, and hope to help everyone.
详细叙述了高位数字译码器13位DAC的工作原理，并对可变增益放大器作了理论分析。
The principle of the most significant bits digital decoder-13 bits DAC is described in detail, and the gain controlled amplifier is theoretically analysed.
并以宽带电流反馈运算放大器为核心，辅以FET输入电路及程控电路构建了高速高输入阻抗可变增益放大电路。
Combined with wide band current feedback amplifier, FET input circuit and programmable circuit, variable gain amplification circuit with high speed and high input impedance is designed.
设计了一种新型可变增益线性脉冲放大器。
I have designed a kind of new variable gain linear pulse amplifier.
而且，可以发送增益值，它可用来控制在8-PSK操作期间的收发信机中的可变增益放大器（VGA）。
Furthermore, a gain value may be sent which may be used to control a variable gain amplifier (VGA) within the transceiver during 8-PSK operation.
该可编程增益放大器采用源极反馈电阻可变的差分放大器结构，且带有直流漂移校正电路。
The PGA consists of the differential amplifier with variable source degeneration resistor and the DC-offset correction circuit.
在低噪声放大器噪声线性的基础上，介绍了负载温度可变法，用于测量低温低噪声放大器的噪声。
On the basis of the noise linearity of low noise amplifier(LNA), the variable load temperature method is introduced to measure noise properties of cryogenic LNAs.
提出了具有可变光衰减的串联量子阱半导体光放大器的数字模型并与实验数据相匹配。
A model for the number of QW SOAs in series with variable optical attenuation is developed and matched to the experimental data.
然后经过一级可变增益放大器，在经过A/D变换，通过单片机串口将数字数据传输到ARM主控制板内进行处理。
Then after a variable gain amplifier, After A / D conversion and through the microcontroller serial digital data to the ARM within the main control panel for processing.
功率放大器（12）具有分别用于这两 种调制格式的固定增益模式和可变增益模式。
The power amplifier (12) has a fixed gain mode and a variable gain mode used for the two modulation formats, respectively.
一种可变增益AC放大器被连到检波器电路，用于将检波器输出放大。
A variable gain AC amplifier is coupled to the detector circuit for amplifying the detector output.
该放大器由电流调节型可变增益单元、宽范围指数电压转换电路及固定增益放大器构成。
It consists of a variable-gain cell based on a current-steering structure, a novel wide-range exponential voltage generator, and a stage of a fixed-gain amplifier.
这对目前无线通讯接收机的可变增益放大器设计具有很高的参考价值。
These results are relatively satisfactory compared to the conventional VGA design. This provides a very good reference for the current VGA design in wireless receiver.
这对目前无线通讯接收机的可变增益放大器设计具有很高的参考价值。
These results are relatively satisfactory compared to the conventional VGA design. This provides a very good reference for the current VGA design in wireless receiver.
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