ABSTRACT
The sine signal generator is a electronic instrument that can generate some signal with certain amplitude and certain frequency, and guarantee high degree of accuracy, high degree of stability and operability. It’s widely used in communication, radar, electronic survey and research area.
This design use frequency synthesizer of digital phase-locked loop technology, and use AT89C52 as a control core single chip, external analog / digital converter (AD7521), operational amplifier (LM356), button and other circuits. It has a low price, low power consumption, high-performance, with a certain degree of use and reference value.
This design use Protues to emulating the hardware, the Keil to programming the software.
Keywords: Single-chip, Phase-locked Loop, Sinusoidal signal
目 录