Board layout and power budget
The DSC6101ME2B-002.5000T: Typical supply current is 3 mA max — at 2.5 MHz the CMOS output drives a 15 pF load with negligible dynamic current; the bulk of the draw is the MEMS PLL and output buffer bias, which is fixed regardless of frequency.
Sourcing and compliance posture
The MEMS resonator construction eliminates the quartz cold-start and ageing drift that can shift a crystal oscillator outside its ±25 ppm budget over a decade of operation — relevant for automotive ECUs that see thermal cycling from -20°C to +70°C every ignition cycle.