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TRF3710
IQ de-modulator, TRF3710[edit]
In a closed-loop system, the downlink data sent to the air is then captured in the reception side. This is done by connecting the output of the TSW3003 (REFOUT, J32) to the input of the TRF3710 (RFIN, J6). These data are de-modulated and the can be found at J3 (I data) and J13 (Q data), which are sent to ADS5231 for data conversion. Regarding the local oscillator parameters for this device, its frequency can vary from 1700 to 2000 MHz. Since the local oscillator frequency for the IQ modulator is 2140 MHz, the local oscillator frequency for TRF3710 is generated to be the same value with the help of another TSW3003 kit.