The Microchip MCP4922 implements voltage doubling to enable full 3.3 Volt or 5 Volt output. Output voltage cannot exceed DAC supply voltage, therefore the 5 Volt maximum output can only be achieved if the PIEP motherboard peripheral voltage select is set at 5 Volts. Two SPI chip select options are jumper selectable (SPIP-2 or SPIP-8). Remote disable and non-triggered updates are implemented but may be disabled via board jumpers. Refer to the MCP4922 datasheet for more details.
| 311-009-dac-board.pdf |
