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AFS090 Datasheet(PDF) 273 Page - Microsemi Corporation |
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AFS090 Datasheet(HTML) 273 Page - Microsemi Corporation |
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273 / 334 page  Fusion Family of Mixed Signal FPGAs R e visio n 2 3 - 23 Static Power Consumption of Various Internal Resources Power Calculation Methodology This section describes a simplified method to estimate power consumption of an application. For more accurate and detailed power estimations, use the SmartPower tool in the Libero IDE software. The power calculation methodology described below uses the following variables: • The number of PLLs as well as the number and the frequency of each output clock generated • The number of combinatorial and sequential cells used in the design • The internal clock frequencies • The number and the standard of I/O pins used in the design • The number of RAM blocks used in the design • The number of NVM blocks used in the design • The number of Analog Quads used in the design • Toggle rates of I/O pins as well as VersaTiles—guidelines are provided in Table 3-16 on page 3-27. • Enable rates of output buffers—guidelines are provided for typical applications in Table 3-17 on page 3-27. • Read rate and write rate to the RAM—guidelines are provided for typical applications in Table 3-17 on page 3-27. • Read rate to the NVM blocks The calculation should be repeated for each clock domain defined in the design. Table 3-15 • Different Components Contributing to the Static Power Consumption in Fusion Devices Parameter Definition Power Supply Device-Specific Static Contributions Units AFS1500 AFS600 AFS250 AFS090 PDC1 Core static power contribution in operating mode VCC 1.5 V 18 7.5 4.50 3.00 mW PDC2 Device static power contribution in standby mode VCC33A 3.3 V 0.66 mW PDC3 Device static power contribution in sleep mode VCC33A 3.3 V 0.03 mW PDC4 NVM static power contribution VCC 1.5 V 1.19 mW PDC5 Analog Block static power contribution of ADC VCC33A 3.3 V 8.25 mW PDC6 Analog Block static power contribution per Quad VCC33A 3.3 V 3.3 mW PDC7 Static contribution per input pin – standard dependent contribution VCCI See Table 3-12 on page 3-18 PDC8 Static contribution per input pin – standard dependent contribution VCCI See Table 3-13 on page 3-20 PDC9 Static contribution for PLL VCC 1.5 V 2.55 mW |
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