Frequency modulator composed of NE566
Source: InternetPublisher:张小哥 Keywords: Modulator frequency modulation BSP potential Updated: 2020/05/14
The frequency modulator composed of the integrated voltage controlled oscillator NE566 is shown in the figure. When the potential of
the signal input terminal ⑤ is a DC potential, a constant frequency oscillation is formed over and over again; changing the potential of the input terminal ⑤ , the output frequency of the integrated circuit
frequency modulator circuit also changes accordingly.
The reference values of the component parameters in the figure are when the resistance: Ri - R2 - lOOfl. When Rd - lOkZRP2 - 50kfl, the output frequency can
change accordingly around 20 ~ 40kHz; changing the value of RP2 or G, the output frequency will also change accordingly.
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