2.7.3 Simulations

The target impedance of the VPP is calculated as 3.3Ω, based on the values (see Power Supply):

  • VSUPPLY = 3.3V
  • Itrans = 50 mA

  • Ripple = 5%

The simulation result (as shown in the following figure) shows that it meets the required impedance levels.

Figure 2-23. Impedance Profile of VPP Plane Over Frequency Range