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Virtex-4 / XC4VSX Series


Power Requirements | Reference Designs | Resources

Power Requirements for Virtex-4 / XC4VSX
  Pin Name Voltage (V) Imax* Tolerance Sequencing Order Timing Delay
Device (mA)
Core Vccint 1.0 XC4VSX25
XC4VSX35
XC4VSX55 		2500
4000
7500 		±5% 1 Ramp Time (Vccint, Vcco, Vccaux) : 0.2 to 50ms
I/O Vcco 1.2 / 1.5 / 1.8 / 2.5 / 3.3 XC4VSX25
XC4VSX35
XC4VSX55 		3000
3000
5000
±5% 1 Power on Vccaux before or with Vcco
I/O Vccaux 2.5 300

*Note: The Imax value shown above table is the maximum value when the desired FPGA is used in the majority of applications. There may be cases in which the required current is higher or lower depending on your clock frequencies and your particular usage case. For your exact current requirements, go to the power estimator spreadsheet for your FPGA.

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Reference Designs for Virtex-4 / XC4VSX
Name File Name/Size Date Download
5V Input
Modular - Up to 15-A slvr267.pdf, 181KB 04 Mar 2005
Switching DC/DC Converter with Integrated FETs - Up to 6-A slvr268.pdf, 148KB 04 Mar 2005
Low-Voltage Switching Dual DC/DC Controller slvr270.pdf, 174KB 04 Mar 2005
Low-Voltage Switching Dual DC/DC Controller for Small FPGA Devices slvr272.pdf, 96KB 04 Mar 2005
12V Input
Switching DC/DC Converter with Integrated FETs - Up to 3-A slvr269.pdf, 112KB 27 Jun 2006
High-Voltage Switching Dual DC/DC Controller slvr271.pdf, 175KB 04 Mar 2005

Note: Unless otherwise noted, these reference designs are tested to meet the specs given in the above power specification table.

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Resources for Virtex-4 / XC4VSX

  • Virtex-4 RocketIO Multi-Gigabit Transceiver User Guide (ug076.pdf)
    Download
  • Virtex-4 Family Overview (ds112.pdf, 146KB )
    Download
  • Virtex-4 Data Sheet: DC & Switching Characteristics (ds302.pdf, 555KB )
    Download
  • Virtex-4 ML461 Memory Interfaces Development Board User Guide (ug079.pdf, 3031KB)
    Download

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Selection & Solution Guides   

  • Power Management Selection Guide (Rev. H) (slvt145h.pdf, 4.83 MB)
    11 Apr 2008 Download
  • LED Reference Design Cookbook (slyt349.pdf, 2.77 MB)
    Download
  • Battery Charger Catalog 3Q 2008 (slym069.pdf, 1.87 MB)
    Download