RE: I need some chip info about nRF52832 DC/DC and ADC

Julio Hu — Wed, 27 Jan 2021 01:43:27 GMT

Got it, thank you for your help.

RE: I need some chip info about nRF52832 DC/DC and ADC

ketiljo — Mon, 25 Jan 2021 13:44:41 GMT

[quote user=""]1. the power capability and efficiency of the DC/DC
i. the max output current and the peak current and continues current as recommended.
ii. the efficiency of the DC/DC and switching frequency at different power load (assume it's working in PFM) and different voltage output, (would be possible that the CPU voltage[/quote]

The DCDC converter only supplies the radio. It's not designed to supply external power to other circuitry. Hence there are no spec for the DCDC converter. You can find the current numbers in the PS with LDO and DCDC: https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/radio.html#unique_260779787

[quote user=""]2. the accuracy of the internal ADC
there is a info about the convertor itself, but I cannot find the spec or feature of the internal reference voltage circle, such like the accuracy and the drift at different temperature.[/quote]

There's no separate spec for the voltage reference, it's included in the gain specification for the ADC: https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/saadc.html#unique_397560666