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Electronic circuit performing gain control and gain compression to improve characteristic of analog output and electronic device including the same
Electronic circuit performing gain control and gain compression to improve characteristic of analog output and electronic device including the same
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机译:进行增益控制和增益压缩以改善模拟输出的特性的电子电路以及包括该电子电路的电子设备
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摘要
An electronic circuit includes a peak detector, a gain controller, and a compressor. The peak detector detects a peak level from a digital input. The gain controller outputs a digital gain with regard to increasing the peak level to a target level, The compressor provides the gain controller with a compressed gain which is to be output as the digital gain, based on the detected peak level. In a compression interval where the peak level is greater than a threshold level, the output digital gain increases as the peak level decreases. The compressor generates the compressed gain such that a ratio of an increment of the output digital gain to a decrement of the peak level in the compression interval is less than a reference ratio.
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