Frequency Synthesizer (FS) is a very important block, which is used in a wireless transceiver as a local oscillator for frequency translation and channel selection.
频率合成器是射频收发机中非常重要的模块，是用于频率转换和频道选择的本地振荡源。
A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
频率平移电路(172 ~ 188)使得经过带通滤波的若干多通道模拟信号在频域中接邻，而在相邻通道信号之间没有任何保护频带。
If there is more than one possible translation, the words appears in ranked order of frequency.
如果有多于一个可能的翻译，换言之出现在排名顺序的频率。
If there is more than one possible translation, the words appears in ranked order of frequency.
如果有多于一个可能的翻译，换言之出现在排名顺序的频率。
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