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Virtex-4 / XC4VFX Series


Power Requirements | Reference Designs | Resources


Power Requirements for Virtex-4 / XC4VFX
  Pin Name Voltage (V) Imax* Tolerance Sequencing Order Timing Delay Comments
Device (mA)
Core Vccint 1.0 XC4VFX12
XC4VFX20
XC4VFX40
XC4VFX60
XC4VFX100
XC4VFX140 		1500
2000
3750
5500
9000
13500
 ±5% 1 Vccint, Vcco, Vccaux: 0.2 to 50ms  
I/O Vcco 1.2 / 1.5 / 1.8 / 2.5 / 3.3 XC4VFX12
XC4VFX20
XC4VFX40
XC4VFX60
XC4VFX100
XC4VFX140 		3000
3000
3000
4000
5000
5000 		±5% 1 Power on Vccaux before or with Vcco  
I/O Vccaux 2.5 XC4VFX12
XC4VFX20
XC4VFX40
XC4VFX60
XC4VFX100
XC4VFX140 		300
300
300
350
500
600
I/O AvccauxRx 1.2 485 ±5% 1    
I/O AvccauxTx 1.2 355
I/O AvccauxMgt 1.2 5
I/O Vtrx 0.25 to 2.5 210 ±5% 1   Voltage supplied on Vtrx and Vttx determines signal RX and TX levels
I/O Vtrx 1.14 to 1.575 24

*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 / XC4VFX
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 / XC4VFX

  • 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