1.1.1 PolarFire SoC Decoupling Capacitors

The following tables list the requirement of all decoupling capacitors for the MPFS460TS - FCG1152, MPFS250TS - FCG1152, MPFS250TS - FCVG484, MPFS250TS - FCSG536, MPFS250TS - FCVG784, and MPFS095T/MPFS025T - FCS325 devices.

Table 1-2. Power-Supply Decoupling Capacitors1—MPFS460TS - FCG1152 (1 mm)
Pin NameCeramicTantalum
1 nF4.7 nF22 nF10 nF47 nF0.1 μF1 μF4.7 μF10 μF47 μF330 μF
VDD43
VDD1822
VDDA3162
VDDA2541
VDD2551
VDDAUXGPIO21
GPIO21
HSIO21
VDD_XCVR_CLK21
SERDES_VREF2
VDDI321
Bank 221
Bank 421
Bank 521
Bank 6 MSS DDR111
Note: 1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.
Table 1-3. Power-Supply Decoupling Capacitors1—MPFS250TS - FCG1152 (1 mm)
Pin NameCeramicTantalum
1 nF4.7 nF22 nF10 nF47 nF0.1 μF1 μF10 μF47 μF330 μF
VDD2521112
VDD18112
VDDA3162
VDDA25221
VDD251221
VDDAUX (GPIO)1111
GPIO Bank11
HSIO Bank21
VDD_XCVR_CLK21
SERDES_VREF2
VDDI321
Bank 221
Bank 4 2 1
Bank 521
Bank 6 MSS DDR111
Note:
  1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.
Table 1-4. Power-Supply Decoupling Capacitors1—MPFS250TS/MPFS160TS/MPFS095TS - FCVG484 (0.8 mm)
Pin NameCeramicTantalum
1 nF4.7 nF22 nF10 nF47 nF0.1 μF1 μF4.7 μF10 μF47 μF330 μF
VDD25212
VDD181111
VDDA261
VDDA252211
VDD254131
VDDAUX (GPIO)2121
GPIO2
HSIO1
VDD_XCVR_CLK21
SERDES_VREF2
VDDI321
Bank 221
Bank 421
Bank 521
Bank 6 MSS DDR111
Note:
  1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.
Table 1-5. Power-Supply Decoupling Capacitors1—MPFS250TS/MPFS160TS/MPFS095TS - FCSG536 (0.5 mm)
Pin NameCeramicTantalum
1 nF4.7 nF22 nF10 nF47 nF0.1 µF1 µF4.7 µF10 µF47 µF100 µF330 µF
VDD 212
VDD18 112
VDDA 312
VDDA2522 1
VDD25 31
VDDAUX (GPIO) 1111
GPIO Bank 442
HSIO Bank 22
VDD_XCVR_CLK21
SERDES_VREF 2
Bank 3 JTAG 2 1
Bank 2 21
Bank 421
Bank 521
Bank 6 MSS DDR 1 1
Note:
  1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.
Table 1-6. Power-Supply Decoupling Capacitors1—MPFS250TS/MPFS160TS/MPFS095TS/MPFS025TS - FCVG784 (0.8 mm)
Pin NameCeramicTantalum
1 nF2.2 nF3.3 nF4.7 nF10 nF47 nF0.1 µF1 µF10 µF47 µF330 µF
VDD3 3 3 12
VDD181 1 1 2
VDDA2 2 1 2
VDDA2511 1
VDD251221
VDDAUX (GPIO)1111
GPIO Bank11 11
HSIO Bank1 11 1
VDD_XCVR_CLK 2 1
SERDES_VREF 2
Bank 3 JTAG2 1
Bank 2 21
Bank 42 1
Bank 5 21
Bank 6 MSS DDR 111 111
Note:
  1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.
Table 1-7. Power-Supply Decoupling Capacitors1—MPFS095TS/MPFS025TS - FCSG325 (0.5 mm)
Pin NameCeramicTantalum
1 nF4.7 nF22 nF10 nF47 nF0.1 μF1 μF4.7 μF10 μF47 μF330 μF
VDD411111
VDD1822
VDDA221
VDDA25111
VDD2551
VDDAUXGPIO21
GPIO Bank21
HSIO Bank21
VDD_XCVR_CLK21
SERDES_VREF2
JTAG Bank 3 (VDDI3)21
Bank 221
Bank 421
Bank 521
Bank 6 MSS11
Note:
  1. The guidelines are provided on how to effectively decouple only the PolarFire SoC device. If the power source is placed on a different PCB or delivered through interconnects (flex cables or connectors), ensure an effective power delivery to the PolarFire SoC device. Follow the recommended operational conditions as per PolarFire SoC Datasheet.

Decoupling capacitors other than those listed in the preceding tables can be used, if the physical sizes of capacitors meet or exceed the performance of the network given in this example. Substitution would require analyzing the resulting power distribution system's impedance versus frequency to ensure that no resonant impedance spikes the result. See Figure 1-1 for power supply design.

For more information about the internal package capacitance for power supplies associated with PolarFire SoC packages, see PolarFire SoC FPGA Packaging and Pin Descriptions User Guide.

The following table lists the required decoupling capacitors for PolarFire SoC packages.

Table 1-8. Recommended Decoupling Capacitors For PolarFire SoC Devices
De-Cap ValuePart NumberPackageDescription
1 nFCL05B102KO5NNNC0402For 1 mm package
22 nFGRM155R71C223KA01D0402For 1 mm package
10 nFGRM155R71C103KA01D0402For 1 mm package
0.1 µFGRM155R71C104KA88D0402For 1 mm package
10 nFGRM15XR11C103KA860402For 1 mm package
4.7 nFGRM155R11H472KA010402For 1 mm package
10 µFGRM21BR71A106KE510805Bulk Caps (for 0.5, 0.8, and 1 mm)
47 µFGRM31CR61A476KE151206Bulk Caps (for 0.5, 0.8, and 1 mm)
330 µFT495D337K010ATE1502917Bulk Caps (for 0.5, 0.8, and 1 mm)
1 nFGRM033R71C102KA010201For 0.8 and 0.5 mm package
2.2 nFGRM033R71C222KA88D0201For 0.8 mm package
10 nFGRM033R71A103KA010201For 0.8 and 0.5 mm package
0.1 µFGRM033C71C104KE140201For 0.8 and 0.5 mm package
1 µFGRM155R70J105KA12JFor 0.5 mm, 0.8 mm, and 1 mm package
47 nFGRM155R71C473KA01JFor 0.5 mm, 0.8 mm, and 1 mm package
Important: Equivalent capacitor values can be used from a different vendor. For more information about the Packaging Decoupling Capacitors, see PolarFire SoC FPGA Packaging and Pin Descriptions User Guide.