A circuit network or element to vary the frequency response of an audio-frequency circuit, thus varying the quality of the sound reproduction.
一种改变音频电路的频率响应能力的电路网络或器件，通过这种改变可以调整声音重放的质量。
Audio frequency enlarge, video deal with, power manage and mix the thick membrane integrated circuit.
音频放大，视频处理，电源管理混合厚膜集成电路。
The latch phase circle circuit NE567 functions as phase demodulation of audio frequency signals for realizing decoding output of the control signals to control the downhole motor operations.
应用锁相环集成电路ne567对音频信号的鉴相原理实现对控制信号的译码输出，控制井下仪器马达工作。
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