Power Consumption Estimation for PCI card, any advice?

Hi, everybody
I am designing a PCI video capture card. The main ICs are: Cyclone
II (EP2C35F672c6), ADV7181, ADV7123, PCI9054, 128M SDRAM etc. Now I
am making a power consumption estimation for this board. I have
finished the power requirements estimation for ICs. And I have
several questions:
First, is the estimation I have made reasonable? (Pls see the table
below)
FPGA SDRAM ADV7181 ADV7123 PCI9054 MAX3221CDBE4
840mW 782mW 547.1mW 97.54mW 920mW 3.6mW
Others(resistors,leds...) Total
? 3190.24+?
Secondly, I made some calculations for the pull-up and termination
resistors and LEDS. I find each resistor consumes several mWs, even
less than 1 mW and each LED consumes about 20 or 30 mWs when on. Is
that reasonable?
Finally, I want to receive some good advices on the proportion of
the non-IC devices power consumption usually accounts for. And how
much power supply margin should I offer for the whole board?
Looking forward your help. Thank u very much.
Regrds
Leon:|

Start a New Thread