Power supplies – Sundance SMT387 User Manual

Page 25

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Version 1.0.3

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SMT387 User Manual

D4 Red

DSP

GP0

D5 Red

DSP

GP1

D6 Red

FPGA

LED0

D7

Red

FPGA LED1 / PCI SATA
IDSEL*

*FPGA LED1 is used for PCI SATA IDSEL on SMT387V1 PCBs.

Table 5: LED Identification

See

Figure

10: SMT387 Components placement-Top view.

Power Supplies
The PCI specifications state that the maximum power allowed for any PCI board is 25
Watts, and represents the total power drawn from all power rails provided at the
connector (+5V, +3.3v, +VI/O,+12V,-12V, +3.3Vaux). The expansion board (in our
case the TIM carrier board and the TIM modules) may optionally draw all this power
from either the +5V or +3.3V rail.
Nevertheless, it is anticipated that many systems will not provide a full 25 Watts per
connector for each power rail, because most boards will typically draw much less
than this amount.
For this reason it is recommended that you analyse the total FPGA device power
drawn by using

Xilinx XPOWER

before implementing your design in the FPGA.

This will tell you if you need to use the external power connector provided on our
carrier boards. (Like the SMT310Q carrier board)

TI 6415 DSP

FPGA
XC2VP

SiI3512 ZBT RSL

Vccint/Vdd

1.2v

1.5v

1.8v

3.3v

N/A

Vcco/Vddq

3.3v

3.3v

3.3v

3.3v

N/A

Vpci N/A

3.0v

N/A N/A

N/A

Vccaux N/A 2.5v

N/A N/A

2.5v

Table 6: Powering the devices.

DC/DC
converter

PC 3.3v

Voltage
regulator

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