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699 bytes added ,  18:25, 13 September 2020
→‎RF Transmitter Circuit: Added the LPF response plots for FL101 and the LPF after the PA
The transmitter RF path contains a filter IC, pi matching network, broadband amplifier, and a few more output filter stages.
[[File:LMS6.png|alt=Schematic diagram|center|frameless|1065x1065px|Basic schematic of TX circuit on LMS6]]
[[File:LMS6 output lpf 200M-1425M.png|none|thumb|Lowpass filter output from the power amplifier. The blue trace is the S11 plot. The red trace is the S21 plot.  This is from 200 MHz to 1.425 GHz. Absolute values are not to be trusted. The relative measurement indicates that the 3 dB cutoff of the filter is around 500 MHz.]]
[[File:FL101.png|none|thumb|Lowpass filter FL101, output from the CC1050. The blue trace is the S11 plot. The red trace is the S21 plot. This is from 200 MHz to 1.425 GHz. Absolute values are not to be trusted. The relative measurement indicates that the 3 dB cutoff of the filter is around 650 MHz.]]
[[File:FL101 test setup.jpg|none|thumb|Test setup for the FL101 measurement.]]
 
 
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===Relative Humidity Circuit===
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