RM0033 Rev 9 257/1381
RM0033 Digital-to-analog converter (DAC)
277
Figure 48. DAC channel block diagram
Note: Once the DAC channelx is enabled, the corresponding GPIO pin (PA4 or PA5) is
automatically connected to the analog converter output (DAC_OUTx). In order to avoid
parasitic consumption, the PA4 or PA5 pin should first be configured to analog (AIN).
Table 41. DAC pins
Name Signal type Remarks
V
REF+
Input, analog reference
positive
The higher/positive reference voltage for the DAC,
1.8 V
≤ V
REF+
≤ V
DDA
V
DDA
Input, analog supply Analog power supply
V
SSA
Input, analog supply ground Ground for analog power supply
DAC_OUTx Analog output signal DAC channelx analog output
V
DDA
V
SSA
V
REF+
DAC_ OU Tx
Control logicx
DHRx
12-bit
12-bit
LFSRx
trianglex
DM A reque stx
TSELx[2:0] bits
TIM4_T RGO
TIM5_T RGO
TIM6_T RGO
TIM7_T RGO
TIM2_T RGO
TIM8_T RGO
EXTI_9
DMAENx
TENx
MAMPx[3:0] bits
WAVENx[1:0] bits
SWTRIGx
DORx
Digital-to-analog
converterx
12-bit
DAC control register
ai14708b
Trigger selectorx
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