论文部分内容阅读
介绍一种利用数字音频衰减器AD7110和开关电容有源滤波器MF10等构成的数字式自动增益控制电路.它具有动态范围大、失真度小、频率范围宽、信噪比大等特点,可对大动态范围输入信号进行压缩,以满足A/D等电路对输入信号的要求.
This paper introduces a digital automatic gain control circuit which is composed of digital audio attenuator AD7110 and switched capacitor active filter MF10 etc. It has the characteristics of large dynamic range, small distortion, wide frequency range and large signal to noise ratio, Large dynamic range input signal is compressed to meet the A / D circuit input signal requirements.