XC5VSX95T-2FF1136I Xilinx Inc, XC5VSX95T-2FF1136I Datasheet - Page 70
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XC5VSX95T-2FF1136I
Manufacturer Part Number
XC5VSX95T-2FF1136I
Description
FPGA Virtex®-5 Family 94208 Cells 65nm (CMOS) Technology 1V 1136-Pin FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-5 SXTr
Datasheets
1.XC5VLX30-1FFG324C.pdf
(91 pages)
2.XC5VLX30-1FFG324C.pdf
(13 pages)
3.XC5VLX30-1FFG324C.pdf
(385 pages)
Specifications of XC5VSX95T-2FF1136I
Package
1136FCBGA
Family Name
Virtex®-5
Device Logic Units
94208
Typical Operating Supply Voltage
1 V
Maximum Number Of User I/os
640
Ram Bits
8994816
Number Of Logic Elements/cells
94208
Number Of Labs/clbs
7360
Total Ram Bits
8994816
Number Of I /o
640
Voltage - Supply
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
1136-BBGA, FCBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
HW-AFX-FF1136-500-G - BOARD DEV VIRTEX 5 FF1136
Number Of Gates
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Company:
Part Number:
XC5VSX95T-2FF1136I
Manufacturer:
Xilinx Inc
Quantity:
10 000
Part Number:
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Manufacturer:
XILXIN
Quantity:
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- XC5VLX30-1FFG324C PDF datasheet
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Chapter 2: Clock Management Technology
X-Ref Target - Figure 2-5
70
For frequency ≥ 100 MHz (period ≤ 10 ns)
CLK0 PHASE_SHIFT = 0 - 255 covers the
whole range of period.
For frequency between 50 - 100 MHz
(period 10 - 20 ns). At 50 MHz, use
CLK0 PHASE_SHIFT= 0 - 127 for the
first 10 ns.
Use CLK180 with PHASE_SHIFT= 0 - 127
for the next 10 ns.
For frequency between 25 - 50 MHz
(period 20 - 40 ns). At 25 MHz, use
CLK0 PHASE_SHIFT= 0 - 63 for the
first 10 ns.
Use CLK90 with PHASE_SHIFT= 0 - 63
for the next 10 ns.
Use CLK180 with PHASE_SHIFT= 0 - 63
for the next 10 ns.
Use CLK270 with PHASE_SHIFT= 0 - 63
for the last 10 ns.
•
•
•
If the phase shift is limited by the FINE_SHIFT_RANGE, use the coarse-grained phase
shift to extend the phase-shift range or set DCM_PERFORMANCE_MODE attribute to
MAX_RANGE to increase the FINE_SHIFT_RANGE.
CLK180, and CLK270 outputs assuming FINE_SHIFT_RANGE = 10 ns.
In variable mode, the phase-shift factor is changed by activating PSEN for one period of
PSCLK. At the PSCLK clock cycle where PSEN is activated, the level of PSINCDEC input
determines whether the phase-shift increases or decreases. A High on PSINCDEC
increases the phase shift, and a Low decreases the phase shift.
After the deskew circuit increments or decrements, the signal PSDONE is asserted High
for a single PSCLK cycle. This allows the next change to be performed.
The user interface and the physical implementation are different. The user interface
describes the phase shift as a fraction of the clock period (N/256). The physical
implementation adds the appropriate number of buffer stages (each DCM_TAP) to the
clock delay. The DCM_TAP granularity limits the phase resolution at higher clock
frequencies.
All phase-shift modes, with the exception of DIRECT mode, are temperature and voltage
adjusted. Hence, a V
DIRECT phase shift is not temperature or voltage adjusted since it directly controls
If PERIODCLKIN = FINE_SHIFT_RANGE, then the PHASE_SHIFT in variable-
positive mode is limited to +255. In fixed and variable-center mode the
PHASE_SHIFT is limited to ±255.
If PERIODCLKIN ≤ FINE_SHIFT_RANGE, then the PHASE_SHIFT in variable-
positive mode is limited to +255. In fixed and variable-center mode the
PHASE_SHIFT is limited to ±255.
For all previously described cases, the direct mode is always limited to +1023.
Figure 2-5: Fixed Phase-Shift Examples
CLK180(50 MHz)
CLK180(25 MHz)
CLK270(25 MHz)
CLK0(100 MHz)
CLK90(25 MHz)
CLK0(50 MHz)
CLK0(25 MHz)
CC
or temperature adjustment does not change the phase shift. The
www.xilinx.com
10 ns
10 ns
Figure 2-5
10 ns
illustrates using CLK90,
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
10 ns
ug0190_2_05_032506
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