Other Parts Discussed in Thread: CC1312R7
My customer is using the LP-CC1312R7 evaluation board to check its performance.
As an evaluation for use in the ARIB-STD-T67 1200 MHz band, we used the LP-CC1312R7 and RFStudio to output a GFSK signal at 1216-1217 MHz and measured that signal, but had problems with the following points.
1) Transmit power is only about 1mW at 10mW setting.
2) Spurious must be less than -36dB relative to the carrier, but only just under the standard at -36dB.
3) Adjacent channel leakage power must be -40dB or less relative to transmit power, but only -37dB can be obtained.
Q1:To solve these problems, do I need to modify the CC1312R7 settings or external circuits?
(In the related thread, it was only the transmit power, so I just wanted to be sure.)
Also they have tested the reception performance, but the signal selectivity for the reception frequency ±12.5 kHz does not seem to be good, and the reception sensitivity drops when the received signal and the ±12.5 kHz interference signal are input simultaneously.
Q2:They think the selectivity can be improved if the BPF bandwidth for reception can be narrowed, but is there such a setting for CC1312R7?