Tags
- Wireless
- RF Hardware
- Si7021-A20-GM1
- EZRadio Sub-GHz Wireless ICs
- Proprietary
- Example Code
- Simplicity Commander
- EZR32WG
- Si4010-C2-GS
- Zigbee SDK
- Si4010-C2-GT
- Connect SDK
- ZigBee and Thread
- EZRadioPRO Sub-GHz Wireless ICs
- Z-Wave
- Bluetooth Low Energy
- 32-bit MCU SDK
- Si7021-A20-GM
- EZR32HG
- RAIL SDK
- RF Synthesizers
- EZR32LG
- Knowledge Base Articles
- EFR32FG14P233F256GM48
- Si4463
- Si4460
- Si4461
- RAIL
- Si4467
- Simplicity Studio
- Si4464
- Si4468
- 32-bit MCU Kits
Top Authors
Archives
- 2016 April
- 2016 May
- 2016 June
- 2016 July
- 2016 August
- 2016 September
- 2016 October
- 2016 November
- 2017 February
- 2017 March
- 2017 April
- 2017 May
- 2017 July
- 2017 August
- 2017 October
- 2017 November
- 2017 December
- 2018 March
- 2018 April
- 2018 May
- 2018 June
- 2018 July
- 2018 August
- 2018 September
- 2018 October
- 2018 November
- 2018 December
- 2019 January
- 2019 February
- 2019 March
- 2019 April
- 2019 May
- 2019 June
- 2019 September
- 2019 October
- 2019 November
- 2019 December
- 2020 January
- 2020 February
- 2020 March
- 2020 April
- 2020 July
- 2020 August
- 2020 October
- 2020 November
- 2021 January
- 2021 February
- 2021 March
EFR32 Series 1 DC-DC to PAVDD
Question
In which cases should I apply DC-DC to PAVDD when creating an EFR32 Series 1 design?
Answer
Using the 1.8V output of the internal DC-DC converter of EFR32 Series 1 devices for DC supply of the PA provides better efficiency (i.e. lower PA current for the same output power) compared to the case when the PA is running from the main 3.3V. The recommendation for applying the DC-DC output to PAVDD:
Above these power levels, using the main 3.3V supply for DC supply of the PA results better efficiency.