The decoupling capacitor table indicates the required decoupling based on the current estimation and the step load entered for VCCINT. The table lists six types of capacitors. The following is the size and self resonant frequency of each capacitor:
- 330µF-1210
- Typical self resonant frequency is 0.3 MHz.
- 100µF-0805
- Typical self resonant frequency is 0.5 MHz.
- 47µF-0603
- Typical self resonant frequency is 0.8 MHz.
- 22µF-0603
- Required for the transceivers. Typical self resonant frequency is 1.0 MHz.
- 10µF-0402
- Typical self resonant frequency is 2 MHz.
- 1.0µF-0201
- Typical self resonant frequency is 10 MHz.
Recommended:
Xilinx recommends a PDN simulation is done to
validate the decoupling capacitors quantity and placement is based on the completed PCB
design.
Tip: More details such as ESR / ESL, manufacturer part number, and temperature
range can be seen in the message on the power supply tab of the XPE.
Power sequencing requirements are given in the PMC / Power Sequencing dialog box.