Regarding the Spectrum Digital's DM6467T evaluation module reference design. Does anyone have any insight as to why Spectrum Digital chose to power their 12-Bit 1 of 3 Mux's (P/N SN74CBT16214) from a 4.1V voltage reference instead of directly from 5V? I understand the Mux can operate down to a 4V input, but it is not clear why they chose to run this part at 4.1V given the input and corresponding outputs are 3.3V signals. Any insight into this would be appreciated as currently this mux is the only 5V part used in my design and I would like to know my options regarding powering this device.
Thanks