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HamRadio Melexis RF Transmitte...

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HamRadio Melexis RF Transmitter and Antenna Design HintsApplications Note
RF Transmitter and Antenna Design Hints

This application note covers the TH7107,TH71071,TH71072,TH7108,TH71081,TH72011,TH72031,TH7204 Single Frequency Transmitters. These transmitters have different features and cover different bands but they all have common features, which make them very easy to use for different applications.

Features common to all transmitters:
The most common feature of all the transmitters is that the output frequency is 32 times the reference frequency. In most cases, the reference will be a quartz crystal, but it could also be an external source connected to the RO1 pin. The capacitance looking into the RO1 pin is approximately 15pF. Therefore the crystal should be specified to have a load capacitance of 15pF at the desired output frequency divid……
HamRadio Melexis RF Transmitte...
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