Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Product List
DAC-Slide6

Setting the voltage level of a channel's analog output is very simple. The user only needs to write to the channel's data register. The formula for determining the output voltage is shown on this page. The value in the data register is divided by 1024. This number comes from the fact that the RX has a DAC with 10-bit resolution and 2 raised to the 10th power is 1024. So for example if Vrefh is connected to Vcc at 3.3V and 512 has been written to the channel's data register, then 3.3V is multiplied by 512 over 1024 to produce an output voltage of 1.65V.

PTM Published on: 2011-11-14