Vdac - Digital To Analog Converter; Introduction - Silicon Laboratories EFR32xG14 Wireless Gecko Reference Manual

23. VDAC - Digital to Analog Converter

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23.1 Introduction

The Voltage Digital to Analog Converter (VDAC) can convert a digital value to an analog output voltage. The VDAC is fully differential
rail-to-rail, with 12-bit resolution. It has two single ended output buffers which can be combined into one differential output. The VDAC
may be used for a number of different applications such as sensor interfaces or sound output.
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DAC
VDAC - Digital to Analog Converter
Quick Facts
What?
The VDAC is designed for low energy consumption,
but can also provide very good performance. It can
convert digital values to analog signals at up to 500
kilo samples/second with 12-bit accuracy.
Why?
The VDAC can be used to generate accurate analog
signals for sound, sensors and other applications,
using only a limited amount of energy.
How?
The VDAC can generate high-resolution analog sig-
nals while the MCU is operating at low frequencies
and with low total power consumption. Using DMA
and a timer, the VDAC can be used to generate
waveforms without any CPU intervention. The VDAC
is available down to Energy Mode 3.
Reference Manual
Rev. 1.1 | 754