XC3SD3400A-4FGG676C Xilinx Inc, XC3SD3400A-4FGG676C Datasheet - Page 46

FPGA, SPARTAN-3A, DSP, 676FBGA

XC3SD3400A-4FGG676C

Manufacturer Part Number
XC3SD3400A-4FGG676C
Description
FPGA, SPARTAN-3A, DSP, 676FBGA
Manufacturer
Xilinx Inc
Series
Spartan™-3A DSPr

Specifications of XC3SD3400A-4FGG676C

No. Of Logic Blocks
5968
No. Of Gates
3400000
No. Of Macrocells
53712
Family Type
Spartan-3A
No. Of Speed Grades
4
Total Ram Bits
2322432
No. Of I/o's
502
Clock Management
DCM
I/o Supply
RoHS Compliant
Number Of Logic Elements/cells
53712
Number Of Labs/clbs
5968
Number Of I /o
469
Number Of Gates
3400000
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
676-BBGA
Package
676FBGA
Family Name
Spartan®-3A
Device Logic Units
53712
Device System Gates
3400000
Maximum Internal Frequency
667 MHz
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
469
Ram Bits
2322432
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
122-1532 - KIT DEVELOPMENT SPARTAN 3ADSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
122-1539

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0
Table 37: Switching Characteristics for the DLL (Cont’d)
Digital Frequency Synthesizer (DFS)
Table 38: Recommended Operating Conditions for the DFS
DS610 (v3.0) October 4, 2010
Product Specification
Notes:
1.
2.
3.
4.
5.
Notes:
1.
2.
3.
4.
5.
Delay Lines
DCM_DELAY_STEP
Input Frequency Ranges
F
Input Clock Jitter Tolerance
CLKIN_CYC_JITT_FX_LF
CLKIN_CYC_JITT_FX_HF
CLKIN_PER_JITT_FX
CLKIN
The numbers in this table are based on the operating conditions set forth in
Indicates the maximum amount of output jitter that the DCM adds to the jitter on the CLKIN input.
For optimal jitter tolerance and faster lock time, use the CLKIN_PERIOD attribute.
Some jitter and duty-cycle specifications include 1% of input clock period or 0.01 UI. For example, the data sheet specifies a maximum jitter
of ±[1% of CLKIN period + 150]. Assume the CLKIN frequency is 100 MHz. The equivalent CLKIN period is 10 ns and 1% of 10 ns is 0.1 ns
or 100 ps. According to the data sheet, the maximum jitter is ±[100 ps + 150 ps] = ±250 ps, averaged over all steps.
The typical delay step size is 23 ps.
DFS specifications apply when either of the DFS outputs (CLKFX or CLKFX180) are used.
If both DFS and DLL outputs are used on the same DCM, follow the more restrictive CLKIN_FREQ_DLL specifications in
CLKIN input jitter beyond these limits may cause the DCM to lose lock.
The DCM specifications are guaranteed when both adjacent DCMs are locked.
To support double the maximum effective F
clock frequency by two as it enters the DCM.
Symbol
CLKIN_FREQ_FX
Symbol
(5)
(2)
Finest delay resolution, averaged over all steps
(3)
Frequency for the CLKIN input
Cycle-to-cycle jitter at the
CLKIN input, based on CLKFX
output frequency
Period jitter at the CLKIN input
CLKIN
Description
limit, set the CLKIN_DIVIDE_BY_2 attribute to TRUE. This attribute divides the incoming
Description
Spartan-3A DSP FPGA Family: DC and Switching Characteristics
www.xilinx.com
F
F
CLKFX
CLKFX
< 150 MHz
> 150 MHz
Table 7
and
Device
Table
All
Min
0.2
36.
Min
15
-5
333
±300
±150
Speed Grade
Max
±1
-5
(5)
Speed Grade
Max
35
Min
0.2
Min
15
-4
-4
Table
333
±300
±150
Max
±1
Max
35
(5)
36.
Units
MHz
Units
ps
ps
ns
ps
46

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