XQ2V3000 Xilinx, XQ2V3000 Datasheet - Page 48

• Manufacturer Part Number: XQ2V3000
• Description: QPro Virtex-II 1.5V Military QML Platform FPGAs
• Manufacturer: Xilinx

QPro Virtex-II 1.5V Military QML Platform FPGAs
Table 34: Quiescent Supply Current
Power-On Power Supply Requirements
Xilinx FPGAs require a certain amount of supply current
during power-on to ensure proper device operation. The
actual current consumed depends on the power-on ramp
rate of the power supply.
The V
ramp on no faster than 200 µs and no slower than 50 ms.
Ramp on is defined as: 0 V
Table 35
Virtex-II devices for proper power on and configuration.
Power supplies can be turned on in any sequence.
If any V
draws up to 300 mA, worst case, until the V
on
to the minimum value above, or larger, the device powers on
properly after all three supplies have passed through their
power on reset threshold voltages.
General Power Supply Requirements
Proper decoupling of all FPGA power supplies is essential.
Consult Xilinx Application Note
mation on power distribution system design.
V
V
Changes in V
should take place at a rate no faster than 10 mV per milli-
second. Techniques to help reduce jitter and period distor-
1. The 300 mA is transient current (peak). It eventually disappears even if VCCAUX does not power up.
48
Notes:
1.
2.
3.
4.
CCAUX
CCAUX
Symbol
I
I
CCAUXQ
1
CCINTQ
I
CCOQ
. This does not harm the device. If the current is limited
With no output current loads and no active input pull-up resistors. All I/O pins are 3-stated and floating.
If DCI or differential signaling is used, more accurate values can be obtained by using the Power Estimator or XPOWER.
Data are retained even if V
Values specified for quiescent supply current parameters are Military Grade.
CCINT
CCO
is especially susceptible to power supply noise.
powers critical resources in the FPGA. Thus,
shows the minimum current required by QPro
, V
bank powers up before V
Quiescent V
Quiescent V
Quiescent V
CCAUX
CCAUX
voltage outside of 200 mV peak to peak
, and V
CCINT
CCO
CCAUX
DC
Description
CCO
CCO
supply current
to minimum supply voltages.
supply current
XAPP623
supply current
drops to 0 V.
power supplies shall each
CCAUX
for detailed infor-
, then each bank
(1,2)
CCAUX
(1,2)
powers
www.xilinx.com
1-800-255-7778
XQ2V1000
XQ2V3000
XQ2V6000
XQ2V1000
XQ2V3000
XQ2V6000
XQ2V1000
XQ2V3000
XQ2V6000
Device
Once initialized and configured, use the power calculator to
estimate current drain on these supplies.
Table 35: Maximum Power On Current Required for
QPro Virtex-II Devices
tion are provided in Xilinx Answer Record 13756, available
at www.support.xilinx.com.
V
V
switching output (SSO) limits are essential for keeping
power supply noise to a minimum. Refer to XAPP689,
“Managing Ground Bounce in Large FPGAs,” to determine
the number of simultaneously switching outputs allowed per
bank at the package level.
Notes:
1.
2.
CCAUX
CCO
I
I
CCAUXMAX
Values specified for power on current parameters are Military
Grade.
I
banks).
CCINTMAX
I
Current
CCOMAX
CCOMAX
does not have excessive noise. Using simultaneously
can share a power plane with 3.3V V
values listed here apply to the entire device (all
Min
-
-
-
XQ2V1000
6.25
500
30
Typical
100
200
250
1.0
2.0
2.0
10
20
25
DS122 (v1.1) January 7, 2004
Device (mA)
XQ2V3000
1300
6.25
95
Product Specification
Max
0.50
1.30
1.50
6.25
6.25
6.25
30
95
95
CCO
XQ2V6000
, but only if
1500
6.25
95
Units
mA
mA
A
R