7 Series FPGAs GTP Transceivers User Guide www.xilinx.com 231
UG482 (v1.9) December 19, 2016
Power Supply and Filtering
Another option is to use an 0201 capacitor and mounting it between the vias. An example of this is
shown in Figure 5-11.
X-Ref Target - Figure 5-10
Figure 5-10: Placement of 0.1 µF 0402 Capacitor Using Filled Via in Pad Under FPGA
1 mm.
BGA Pin Field Vias
Filled Via in Pad
0402 Capacitor
1 mm.View From Bottom of PCB
UG482_c5_10_072412
X-Ref Target - Figure 5-11
Figure 5-11: Placement of 0.1 µF 0201 Capacitor Using Filled Via in Pad Under FPGA
1 mm.
BGA Pin Field Vias
Filled Via in Pad
0201 Capacitor
1 mm.View From Bottom of PCB
UG482_c5_11_072412