АМ передатчик с синтезатором частоты на si5351
I started building this transmitter a long time ago, but at that time I only made the frequency synthesizer. It's based on the SI5351 chip, controlled via the I2C interface. I'm using an Arduino Nano board and a classic 1602 display. The result is a decent frequency synthesizer, with a preset range of 500 kHz to 2 MHz, though you can set a different range in the firmware. The synthesizer has the necessary functions to function as a master oscillator. I use an IRF510 field-effect transistor as the amplifier. After struggling with the circuit's imperfections, I made a decent driver for controlling the transistors using the UCC37322 chip, which turned out very well. All that's left is to make a proper low-pass filter and a proper matching filter, and good grounding is also essential for this transmitter.

Делаем синтезатор частоты на Si5351

#967 Why not use a Si5351 clock generator?

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