This is Make a simple power amplifier – LM 380. Almost all the components are contained in a single 14 pin package and requiring few external components.
The supply voltage can be from about 8 volts to not more than 15 volts. The device is supposed to have internal current limiting and be almost [...]
Archives for November, 2009
Make a simple power amplifier – LM 380
Block diagram of a basic synthesiser
Here is the block diagram of a basic synthesiser. The “R-counter” generates the reference frequency. In the MC145152-2 you have about 3 different options. In mine you will have over 2000 different options.
The reference frequency can be interpreted as the channel-spacing of the final synthesiser. The “N-counter” divides the output of the external voltage-controlled [...]
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