范文编号:TX359 范文字数:14991,页数:45 摘要 随着微电子技术的发展,宽带放大器在科研中具有重要作用。所以对于宽带放大器,不仅要求输出稳定、有很宽的频带宽度和电压增值,最好增益可控而且连续可调。此外,用软件来实现增益控制,可以提高系统的灵活性,而且修改方便。 关键词:宽带放大器,AT89C51,程控,增益连续可调 ABSTRACT With the development of microelectronics technology, broadband amplifier has an important role in scientific research. So for broadband amplifiers, it not only requires the stable output, wide bandwidth and voltage value, but also has continuously adjustable gain control. In addition, using the software to achieve gain control can improve system's flexibility, and get easy modification. 摘要 I
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