SWRA814 May 2024 CC1310 , CC1311P3 , CC1311R3 , CC1312R , CC1312R7 , CC1314R10 , CC1350 , CC1352P , CC1352P7 , CC1352R , CC1354P10 , CC1354R10
As mentioned in Section 2.1.5, the CC131xRx devices contain a Sub-1GHz radio that supports up to +14dBm (TX) output power. The CC135xRx devices contain the same Sub-1GHz radio and a 2.4GHz radio that supports up to +5dBm TX output power.
The CC131xPx and CC135xPx devices contain the Sub-1GHz and 2.4GHz radios described above (Sub-1GHz and Multi-band respectively) and an additional +20dBm power amplifier (PA). This PA can be configured for Sub-1GHz or 2.4GHz operation depending on the BOM and RF settings used.
For clarity, since the additional port on P devices solely contains a PA, that additional port is TX-only. This configuration utilizes the PA to achieve a higher TX output power at Sub-1GHz or 2.4GHz. The other relevant radio output can then be used for RX operation only.
The standard RF output for the desired frequency band can be used with the standard configuration (for RX), together with the PA (for TX), if a CC135xPx device is used. For example, the LP-CC1352P7-1 reference design uses the PA for +20dBm output power in the 868-915MHz bands so that the Sub-1GHz and PA networks form the Sub-1GHz design. The 2.4GHz path is then used for up to +5dBm TX output power and for RX.