**(EN)** A frequency adjuster and a frequency adjustment method therefor, and an electronic device. The frequency adjuster (10) comprises: a signal processing circuit (11) configured to generate a frequency control word (F) according to a frequency adjustment coefficient and an input frequency (fi); and a frequency adjustment circuit (12) configured to receive the frequency control word (F), generate an output signal (Sout) having a target frequency (fo) according to the frequency control word (F), and output same. The frequency adjustment coefficient is an arbitrary positive real number and is represented as M.m, M being the integral part of the frequency adjustment coefficient and being a natural number, and m being the fractional part of the frequency adjustment coefficient.

**(ZH)** 一种频率调节器及其频率调节方法、电子设备。该频率调节器(10)包括：信号处理电路(11)，被配置为根据频率调节系数和输入频率(fi)，生成频率控制字(F)；频率调节电路(12)，被配置为接收并根据频率控制字(F)，生成并输出具有目标频率(fo)的输出信号(Sout)。该频率调节系数为任意正实数，且表示为M.m，M为频率调节系数的整数部分，且M为自然数，m为频率调节系数的小数部分。