Recommended Decoupling Capacitor Quantities for Zynq UltraScale+ XC Devices

UltraScale Architecture PCB Design User Guide (UG583)
Document ID
UG583
Release Date
2023-11-14
Revision
1.27 English

Table: Zynq UltraScale+ MPSoC Decoupling Capacitor Recommendations to Table: Zynq UltraScale+ MPSoC PS Decoupling Capacitor Recommendations (0.5 mm Pitch in UBVA494 and UBVA530 Devices) show the recommended decoupling capacitor quantities for Zynq UltraScale+ XC devices. Table: Zynq UltraScale+ MPSoC Decoupling Capacitor Recommendations (0.5 mm Pitch in UBVA494 and UBVA530 Devices) and Table: Zynq UltraScale+ MPSoC PS Decoupling Capacitor Recommendations (0.5 mm Pitch in UBVA494 and UBVA530 Devices) show the decoupling capacitor quantities for 0.5 mm pitch devices (UBVA494 and UBVA530 packages).

Table A-9:      Zynq UltraScale+ MPSoC Decoupling Capacitor Recommendations

 

VCCINT/VCCINT_IO(1)

VCCBRAM/VCCINT_IO(2)

VCCAUX/VCCAUX_IO(3)

HDIO/HPIO(4) (per bank)

330 µF

100 µF

47 µF

10 µF

47 µF

10 µF

47 µF

10 µF

47 µF

10 µF

CG Devices

XCZU1CG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU1CG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU1CG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU2CG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU2CG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU2CG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3CG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU3CG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU3CG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3TCG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3TCG-SFVD784

1

4

1

1

1

1

1

1

1

1

XCZU4CG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU4CG-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU5CG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU5CG-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU6CG-FFVC900

1

5

1

1

1

1

1

1

1

1

XCZU6CG-FFVB1156

1

5

1

1

1

1

1

1

1

1

XCZU7CG-FBVB900

1

5

1

1

1

1

1

1

1

1

XCZU7CG-FFVC1156

1

5

1

1

1

1

1

1

1

1

XCZU7CG-FFVF1517

1

5

1

1

1

1

1

1

1

1

XCZU9CG-FFVC900

1

5

1

1

1

1

1

1

1

1

XCZU9CG-FFVB1156

1

5

1

1

1

1

1

1

1

1

EG Devices

XCZU1EG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU1EG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU1EG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU2EG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU2EG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU2EG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3EG-SBVA484

1

4

1

1

1

1

1

1

1

1

XCZU3EG-SFVA625

1

4

1

1

1

1

1

1

1

1

XCZU3EG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3TEG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU3TEG-SFVD784

1

4

1

1

1

1

1

1

1

1

XCZU4EG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU4EG-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU5EG-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU5EG-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU6EG-FFVC900

1

5

1

1

1

1

1

1

1

1

XCZU6EG-FFVB1156

1

5

1

1

1

1

1

1

1

1

XCZU7EG-FBVB900

1

5

1

1

1

1

1

1

1

1

XCZU7EG-FFVC1156

1

5

1

1

1

1

1

1

1

1

XCZU7EG-FFVF1517

1

5

1

1

1

1

1

1

1

1

XCZU9EG-FFVC900

1

5

1

1

1

1

1

1

1

1

XCZU9EG-FFVB1156

1

5

1

1

1

1

1

1

1

1

XCZU11EG-FFVC1156

1

5

1

1

1

1

1

1

1

1

XCZU11EG-FFVB1517

1

5

1

1

1

1

1

1

1

1

XCZU11EG-FFVF1517

1

5

1

1

1

1

1

1

1

1

XCZU11EG-FFVC1760

1

5

1

1

1

1

1

1

1

1

XCZU15EG-FFVC900

1

5

1

1

1

1

1

1

1

1

XCZU15EG-FFVB1156

1

5

1

1

1

1

1

1

1

1

XCZU17EG-FFVB1517

1

5

1

1

1

1

1

1

1

1

XCZU17EG-FFVC1760

1

5

1

1

1

1

1

1

1

1

XCZU17EG-FFVD1760

1

5

1

1

1

1

1

1

1

1

XCZU17EG-FFVE1924

1

5

1

1

1

1

1

1

1

1

XCZU19EG-FFVB1517

1

5

1

1

1

1

1

1

1

1

XCZU19EG-FFVC1760

1

5

1

1

1

1

1

1

1

1

XCZU19EG-FFVD1760

1

5

1

1

1

1

1

1

1

1

XCZU19EG-FFVE1924

1

5

1

1

1

1

1

2

1

1

EV Devices

XCZU4EV-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU4EV-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU5EV-SFVC784

1

4

1

1

1

1

1

1

1

1

XCZU5EV-FBVB900

1

4

1

1

1

1

1

1

1

1

XCZU7EV-FBVB900

1

5

1

1

1

1

1

1

1

1

XCZU7EV-FFVC1156

1

5

1

1

1

1

1

1

1

1

XCZU7EV-FFVF1517

1

5

1

1

1

1

1

1

1

1

RFSoC Devices

See Table: Programmable Logic Rail Decoupling Guidelines for Zynq UltraScale+ RFSoCs to Table: DAC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices.

Notes:

1.Connect VCCINT and VCCINT_IO together on the PCB for -3, -2, and -1 speed grades. The capacitors listed are the total number of capacitors for the combined rail.

2.Connect VCCBRAM and VCCINT_IO together on the PCB for -2L and -1L speed grades. The capacitors listed are the total number of capacitors for the combined rail.

3.VCCAUX and VCCAUX_IO must share the same plane on the PCB. The capacitors listed are the total number of capacitors for the combined rail.

4.The 47 µF capacitor can be combined at one per every four shared HDIO/HPIO banks.
Table A-10:      Zynq UltraScale+ MPSoC PS Decoupling Capacitor Recommendations

VCC_PSINTFP

VCC_PSINTLP

VCC_PSAUX

VCC_PSPLL

VCC_PSINTFP_DDR

VCCO_PSIOx(1) (Each)

VCC_PSBATT

VCCO_PSDDR

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

10 µF

100 µF

10 µF

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Notes:

1.The 100 µF capacitor can be combined at one per every four shared VCCO_PSIO banks.

2.For PS_MGTRAVCC and PS_MGTRAVTT use one 10 µF capacitor each. See PCB Guidelines for the PS Interface in the Zynq UltraScale+ MPSoC.
Table A-11:      VCCINT_VCU Decoupling Guidelines for Zynq UltraScale+ MPSoC XC Devices

 

VCCINT_VCU

330 µF

100 µF

47 µF

10 µF

1.0 µF

XCZU4EV-SFVC784

1

1

1

3

6

XCZU4EV-FBVB900

1

1

1

3

6

XCZU5EV-SFVC784

1

1

1

3

6

XCZU5EV-FBVB900

1

1

1

3

6

XCZU7EV-FBVB900

1

1

1

3

6

XCZU5EV-FFVC1156

1

1

1

3

6
Table A-12:      Zynq UltraScale+ MPSoC Decoupling Capacitor Recommendations (0.5 mm Pitch in UBVA494 and UBVA530 Devices)

VCCINT/VCCINT_IO (1)

VCCBRAM/VCCINT_IO (2)

VCCAUX/VCCAUX_IO (3)

HDIO/HPIO (per bank) (4)

330 µF

100 µF

47 µF

10 µF

1.0 µF

47 µF

10 µF

1.0 µF

47 µF

10 µF

1.0 µF

47 µF

10 µF

1.0 µF

1

4

1

2

6

1

1

2

1

1

2

1

1

1

Notes:

1.Connect VCCINT and VCCINT_IO together on the PCB for all speed grades other than low power (L). The capacitors listed are for the total number of capacitors on the combined rail.

2.Connect VCCBRAM and VCCINT_IO together on the PCB for low power (L) speed grades. The capacitors listed are for the total number of capacitors on the combined rail.

3.VCCAUX and VCCAUX_IO must share the same plane on the PCB. The capacitors listed are for the total number of capacitors on the combined rail.

4.The 47 µF capacitor can be combined at one per every four shared HDIO/HPIO banks.
Table A-13:      Zynq UltraScale+ MPSoC PS Decoupling Capacitor Recommendations (0.5 mm Pitch in UBVA494 and UBVA530 Devices)

VCC_PSINTFP

VCC_PSINTLP

VCC_PSAUX

VCC_PSPLL

VCC_PSINTFP_DDR

VCCO_PSIOx (1) (Each)

VCC_PSBATT

VCCO_PSDDR

100 µF

10 µF

1.0 µF

100 µF

10 µF

1.0 µF

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

1.0 µF

100 µF

10 µF

100 µF

10 µF

100 µF

10 µF

1.0 µF

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Notes:

1.The 100 µF capacitor can be combined at one per every four shared VCCO_PSIO banks.

2.For PS_MGTRAVCC and PS_MGTRAVTT use one 10 µF capacitor each. See PCB Guidelines for the PS Interface in the Zynq UltraScale+ MPSoC.

Table: Programmable Logic Rail Decoupling Guidelines for Zynq UltraScale+ RFSoCs shows the recommended decoupling capacitor quantities for core rails in Zynq UltraScale+ RFSoC XC devices.

Table A-14:      Programmable Logic Rail Decoupling Guidelines for Zynq UltraScale+ RFSoCs

RFSoC

VCCINT/VCCBRAM/VCCINT_IO(1)

VCCBRAM/VCCINT_IO(2)

VCCAUX/VCCAUX_IO(3)

VCCO (4)

330 µF

100 µF

47 µF

10 µF

47 µF

10 µF

47 µF

10 µF

47 µF

10 µF

XCZU21DR-FFVD1156

2

6

1

1

1

1

1

1

1

1

XCZU25DR-FFVE1156

XCZU25DR-FSVE1156

1

5

1

1

1

1

1

1

1

1

XCZU25DR-FFVG1517

XCZU25DR-FSVG1517

1

5

1

1

1

1

1

1

1

1

XCZU27DR-FFVE1156

XCZU27DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU27DR-FFVG1517

XCZU27DR-FSVG1517

2

6

1

1

1

1

1

1

1

1

XCZU28DR-FFVE1156

XCZU28DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU28DR-FFVG1517

XCZU28DR-FSVG1517

2

6

1

1

1

1

1

1

1

1

XCZU29DR-FFVF1760

XCZU29DR-FSVF1760

2

6

1

1

1

1

1

1

1

1

XCZU39DR-FFVF1760

XCZU39DR-FSVF1760

2

6

1

1

1

1

1

1

1

1

XCZU42DR-FFVE1156

XCZU42DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU43DR-FFVE1156

XCZU43DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU43DR-FFVG1517

XCVU43DR-FSVG1517

2

6

1

1

1

1

1

1

1

1

XCZU46DR-FFVH1760

XCZU46DR-FSVH1760

2

6

1

1

1

1

1

1

1

1

XCZU47DR-FFVE1156

XCZU47DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU47DR-FFVG1517

XCZU47DR-FSVG1517

2

6

1

1

1

1

1

1

1

1

XCZU48DR-FFVE1156

XCZU48DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU48DR-FFVG1517

XCZU48DR-FSVG1517

2

6

1

1

1

1

1

1

1

1

XCZU49DR-FFVF1760

XCZU49DR-FSVF1760

2

6

1

1

1

1

1

1

1

1

XCZU63DR-FFVE1156

XCZU63DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU64DR-FFVE1156

XCZU64DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU65DR-FFVE1156

XCZU65DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

XCZU67DR-FFVE1156

XCZU67DR-FSVE1156

2

6

1

1

1

1

1

1

1

1

Notes:

1.Connect VCCINT standalone, and VCCBRAM/VCCINT_IO together on the PCB for L speed grades. The capacitors listed are the total number of capacitors for the combined rail.

2.VCCAUX and VCCAUX_IO must share the same plane on the PCB. The capacitors listed are the total number of capacitors for the combined rail.

3.The 47 µF capacitor can be combined at one per every four shared HDIO/HPIO banks.

4.Capacitor specifications are the same as in Table: Recommended PCB Capacitor Specifications and Placement Guidelines for XC Devices.

Table: VCCSDFEC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices shows the recommended decoupling capacitor quantities for Zynq UltraScale+ RFSoC XC devices that contain SD-FEC circuitry.

Table A-15:      VCCSDFEC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices

 

VCCSDFEC

100 µF

47 µF

10 µF

1.0 µF

Devices with SD-FEC

1

1

1

4

Notes:

1.Power assumption is 5W on VCCSDFEC.

Table: VCCINT_AMS and ADC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices shows the recommended decoupling capacitor quantities for VCCINT_AMS, ADC_AVCC, and ADC_AVCCAUX in Zynq UltraScale+ RFSoC XC devices.

Table A-16:      VCCINT_AMS and ADC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices

RFSoC

VCCINT_AMS

ADC_AVCC

ADC_AVCCAUX

100 µF

47 µF

10 µF

1.0 µF

100 µF

47 µF

10 µF

1.0 µF

47 µF

10 µF

XCZU25DR-FFVE1156

1

1

2

6

1

1

1

2

2

1

XCZU25DR-FFVG1517

1

1

2

6

1

1

1

2

2

1

XCZU27DR-FFVE1156

1

1

2

6

1

1

1

2

2

1

XCZU27DR-FFVG1517

1

1

2

6

1

1

1

2

2

1

XCZU28DR-FFVE1156

1

1

2

6

1

1

1

2

2

1

XCZU28DR-FFVG1517

1

1

2

6

1

1

1

2

2

1

XCZU29DR-FFVF1760

2

2

3

9

2

2

2

4

2

1

XCZU39DR-FFVF1760

2

2

3

9

2

2

2

4

2

1

XCZU42DR-FFVE1156

1

1

1

4

1

1

1

2

1

1

XCZU43DR-FFVE1156

1

1

1

5

1

1

1

0

1

1

XCZU43DR-FFVG1517

1

1

1

5

1

1

1

0

1

1

XCZU46DR-FFVH1760

1

1

1

6

1

2

2

3

2

1

XCZU47DR-FFVE1156

1

1

1

5

1

1

1

2

1

1

XCZU47DR-FFVG1517

1

1

1

5

1

1

1

2

1

1

XCZU48DR-FFVE1156

1

1

1

5

1

1

1

2

1

1

XCZU48DR-FFVG1517

1

1

1

5

1

1

1

2

1

1

XCZU49DR-FFVG1760

1

1

2

6

2

2

2

4

2

1

XCZU63DR-FFVE1156

1

1

1

5

1

1

1

0

1

1

XCZU63DR-FSVA1156

1

1

1

5

1

1

1

0

1

1

XCZU64DR-FFVE1156

1

1

1

5

2

2

2

4

1

1

XCZU64DR-FSVA1156

1

1

1

5

2

2

2

4

1

1

XCZU65DR-FFVE1156

1

1

1

5

1

1

2

2

1

1

XCZU67DR-FFVE1156

1

1

1

5

2

2

2

4

1

1

Table: DAC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices shows the recommended decoupling capacitor quantities for DAC_AVCC, DAC_AVCCAUX, and DAC_AVTT in Zynq UltraScale+ RFSoC XC devices.

Table A-17:      DAC Decoupling Guidelines for Zynq UltraScale+ RFSoC XC Devices

RFSoC

DAC_AVCC

DAC_AVCCAUX

DAC_AVTT

100 µF

47 µF

10 µF

1.0 µF

47 µF

10 µF

47 µF

10 µF

XCZU25DR-FFVE1156

1

1

1

2

1

1

1

1

XCZU25DR-FFVG1517

1

1

1

2

1

1

1

1

XCZU27DR-FFVE1156

1

1

1

2

1

1

1

1

XCZU27DR-FFVG1517

1

1

1

2

1

1

1

1

XCZU28DR-FFVE1156

1

1

1

2

1

1

1

1

XCZU28DR-FFVG1517

1

1

1

2

1

1

1

1

XCZU29DR-FFVF1760

2

2

2

4

1

1

1

1

XCZU39DR-FFVF1760

2

2

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