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The PIEP Digital to Analog (DAC) Peripheral Board is a two channel, 12-bit DAC with onboard 1.6V and 2.5V precision references (jumper selectable for either 3.3V or 5V supply). 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.


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  • piep/boards/peripherals/digtoanalog.txt
  • Last modified: 2019/04/03 18:36
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