Hi All, I know you don't need to know the internal parts of for example the fs1000a transmitter to use it. However this is not very satisfying. I want to know how it is built.
Does it have a multiplier circuit for instance? I have seen these used on much lower frequencies. But 433mhz seems too large for a multiplier. I have used a AD633 multiplier in a LTSPICE simulation with a 10k carrier frequency.
Can anybody give me the circuit used in the FS1000A transmitter? I guess somewhere there is a crystal oscillator.
Does it have a multiplier circuit for instance? I have seen these used on much lower frequencies. But 433mhz seems too large for a multiplier. I have used a AD633 multiplier in a LTSPICE simulation with a 10k carrier frequency.
Can anybody give me the circuit used in the FS1000A transmitter? I guess somewhere there is a crystal oscillator.