The Digital to Analog Converter (DAC) converts 8-bit digital data into an analog signal. Note that the DAC I/O can only be connected to certain blocks.

Activation

Set the Power on signal parameter to Power on. Note that the DAC1 shares the power of DAC0, and DAC0 must be on to use DAC1. IF only one DAC is to be used, it must be DAC0. The outputs of the DAC’s can only be connected to certain blocks (ACMP’s, PGA, VREF’s) via their input settings. For example, for SLG46140 DAC0 can be connected to VREF, which in turn can be connected to PIN3 set as Analog In/Out.

Parameters

Power on signal:

Power settings for the DAC. The DAC can either be always ON or always OFF. This does not affect usage by the ADC for DAC1, which can override this power parameter.

• Power down;

• Power on;

Input Selection:

The digital data can be user-defined under register value or the digital input to DCMP1

• From register: is the ‘DAC 8-bit register control’ value ranging from 0 to 255;

• From DCMP1’s input: (see DCMP1 for all possible DCMP1 Inputs);

DAC 8 bit register control:

DAC output if Input Selection = ‘From register’

0-255 8-bit range.

Register 0-3:

The registers that are shared among the DCMPs. Changes here are reflected in DCMPs settings

0-255 8-bit range.