用ADI的芯片，AD8367、AD8361、AD820设计的AGC电路（自动增益控制），控制电压可外部输入实现VGA功能，或者闭环控制，实现AGC功能。VGA范围30dB，AGC范围40dB。
2019-12-21 21:06:47
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基于峰值检波的自动增益控制器的设计，使用压控增益芯片VCA810，增益范围在-40dB到60dB,输入控制电压为-2.5V到0V，内附详细调试资料，曾在全国大学生电子设计竞赛中使用。
2019-12-21 20:47:55
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In the early years of radio circuits, fading (defined as slow variations in the amplitude of the
received signals) required continuing adjustments in the receiver’s gain in order to maintain a
relative constant output signal. Such situation led to the design of circuits, which primary ideal
function was to maintain a constant signal level at the output, regardless of the signal’s variations at
the input of the system. Originally, those circuits were described as automatic volume control
circuits, a few years later they were generalized under the name of Automatic Gain Control (AGC)
circuits [1,2].
2019-12-21 20:03:36
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