DAC63202 datasheet(72/83 Pages) TI

72 / 83 page

The pseudocode for getting started with a power-supply control application is as follows:

//SYNTAX: WRITE <REGISTER NAME (Hex code)>, <MSB DATA>, <LSB DATA>

//Write DAC code for nominal output (repeat for all DAC channels)

//For a 1.8-V output range, the 10-bit hex code for 0.6 V is 0x155. With 16-bit left alignment,

this becomes 0x5540

WRITE DAC_0_DATA(0x1C), 0x55, 0x40

//Power-up voltage output on both the channels, enables internal reference

WRITE COMMON-CONFIG(0x1F), 0x12, 0x01

//Set channel 0 gain setting to 1.5x internal reference (1.8 V)

WRITE DAC-0-VOUT-CMP-CONFIG(0x15), 0x08, 0x00

//Set channel 1 gain setting to 1.5x internal reference (1.8 V)

WRITE DAC-1-VOUT-CMP-CONFIG(0x3), 0x08, 0x00

//Configure GPI for Margin-High, Low trigger for all channels

WRITE GPIO-CONFIG(0x24), 0x01, 0x35

//Set slew rate and code step (repeat for all channels)

//CODE_STEP: 2 LSB, SLEW_RATE: 60.72 µs/step

WRITE DAC-0-FUNC-CONFIG(0x18), 0x00, 0x17

//Write DAC margin high code (repeat for all channels)

//For a 1.8-V output range, the 10-bit hex code for 1.164 V is 0x296. With 16-bit left alignment,

this becomes 0xA540

WRITE DAC-0-MARGIN-HIGH(0x13), 0xA5, 0x40

//Write DAC margin low code (repeat for all channels)

//For a 1.8-V output range, the 10-bit hex code for 36 mV is 0x14. With 16-bit left alignment, this

becomes 0x0500

WRITE DAC-0-MARGIN-LOW(0x14), 0x05, 0x00

//Save settings to NVM

WRITE COMMON-TRIGGER(0x20), 0x00, 0x02

8.2.3 Application Curves

Figure 8-2. Power-Supply Margin High

Figure 8-3. Power-Supply Margin Low

DAC53202, DAC63202

SLASF47 – MAY 2022

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DAC63202 Datasheet(PDF) 72 Page - Texas Instruments