Review
Digital Board
Production testing
Datasheets
Websites
Sketches
Power supply
Device power dissipation
Section |
Operating voltage(s) (V) |
Operating current(s) (mA) |
Power consumption per rail per unit (mW) |
No. units |
Total |
Source |
Kintex - 7 |
1 |
1088 |
1088 |
3 |
3264 |
Very rough estimate using Xilinx calculator* |
Kintex - 7 |
1.5 |
445 |
667.5 |
3 |
2003 |
" |
Kintex - 7 |
1.8 |
53 |
95.4 |
3 |
286 |
" |
Kintex - 7 |
2.5 |
2 |
5 |
3 |
15 |
" |
Transmitter GBTXs |
1.5 |
638 |
957 |
6 |
5742 |
GBTx power consumption and TID document** |
Receiver GBTXs |
1.5 |
968 |
1452 |
1 |
1452 |
GBTx power consumption and TID document** |
FEBs |
2.5 |
51.2 |
128 |
8 |
1024 |
2 mW per channel (estimated) |
FEBs |
3.3 |
0 |
0 |
8 |
0 |
Not currently required (pending ALDO...) |
VTRX |
2.5 |
140 |
350 |
1 |
350 |
Versatile link application note*** |
VTTX |
2.5 |
200 |
500 |
3 |
1500 |
Versatile link application note |
*Assuming 100% usage of BRAM, LUT, FF. Logic and BRAM clocked at 80 MHz. 9 LVDS in, 14 out, clocked at 320 MHz for Kintex-7
XCK160T in FBG676 package
**Radiation effects on power consumption are assumed small based on additional evidence presented on page 4 of
https://indico.cern.ch/event/490512/contribution/0/attachments/1225205/1795163/LHCb_upgrade_elect_110216.pdf
***Power dissipation of GBT-SCA is <50 mW, so has been neglected in this analysis
Overall current rquirements
Small MaPMT board (8 x 30 mm devices per digital board| 2 x digital boards per 4 elementary cells
Input current requirements |
Estimated input current @ 5v in (A) |
3.82 |
Estimated input current @ 7v in (A) |
2.73 |
Recommended minimum input connector and cable current rating (A) |
4.5 |
Large MaPMT board (4 x 60 mm devices per digital board| 1 x digital board per 4 elementary cells)"
Input current requirements |
Estimated input current @ 5v in (A) |
2.55 |
Estimated input current @ 7v in (A) |
1.82 |
Recommended minimum input connector and cable current rating (A) |
3.0 |
-- Published by
StephenWotton - 24 Apr 2014
-- Updated by
PhilipJohnGarsed - 2016-02-12
-- Updated by
PhilipJohnGarsed - 2016-02-29