Microsemi IGLOO2 - Figure 38 Impedance Profile of VDDIO0 Plane over Frequency Range; Figure 39 Impedance Profile of VDDIO5 Plane over Frequency Range

Layout Guidelines for SmartFusion2- and IGLOO2-Based Board Design
AC393 Application Note Revision 14.0 49
Figure 38 • Impedance Profile of VDDIO0 Plane Over Frequency Range
Figure 39 • Impedance Profile of VDDIO5 Plane Over Frequency Range
Z Amplitude (Ω)
Frequency (GHz)
Impedance of VDDIO0 with Decoupling Capacitors
Impedance of VDDIO0 without Decoupling Capacitors
1e3
100
10
1
0.1
1e-4 2e-4 1e-3 2e-3 0.01 0.02 0.1 0.2 0.3 1 2 3
0.01
Z Amplitude (Ω)
Frequency (GHz)
Impedance of VDDIO5 with Decoupling Capacitors
Impedance of VDDIO5 without Decoupling Capacitors
1e3
100
10
1
0.1
1e-4 2e-4 1e-3 2e-3 0.01 0.02 0.1 0.2 0.3 1 2 3
0.01