Kintex-7 FPGAs Data Sheet: DC and Switching Characteristics
DS182 (v1.1) April 1, 2011
Advance Product Specification
42
MMCM Switching Characteristics
Table 45: MMCM Specification
Symbol
Description
Speed Grade
Units
-3
-2
-1
-1L
MMCM_FINMAX
Maximum Input Clock Frequency
1066
933
800
MHz
MMCM_FINMIN
Minimum Input Clock Frequency
10
MHz
FINJITTER
Maximum Input Clock Period Jitter
< 20% of clock input period or 1 ns Max
MMCM_FINDUTY
Allowable Input Duty Cycle: 10—49 MHz
25
%
Allowable Input Duty Cycle: 50—199 MHz
30
%
Allowable Input Duty Cycle: 200—399 MHz
35
%
Allowable Input Duty Cycle: 400—499 MHz
40
%
Allowable Input Duty Cycle: >500 MHz
45
%
MMCM_FMIN_PSCLK
Minimum Dynamic Phase Shift Clock Frequency
0.01
MHz
MMCM_FMAX_PSCLK
Maximum Dynamic Phase Shift Clock Frequency
550
500
450
MHz
MMCM_FVCOMIN
Minimum MMCM VCO Frequency
600
MHz
MMCM_FVCOMAX
Maximum MMCM VCO Frequency
1600
1440
1200
MHz
MMCM_FBANDWIDTH
Low MMCM Bandwidth at Typi
cal(1)1.22
MHz
High MMCM Bandwidth at Typical
(1)4.88
MHz
MMCM_TSTATPHAOFFSET
0.12
ns
TOUTJITTER
Note 1
MMCM_TOUTDUTY
MMCM Output Clock Duty Cycle Precisio
n(4)0.19
0.25
ns
MMCM_TLOCKMAX
MMCM Maximum Lock Time
122
s
MMCM_FOUTMAX
MMCM Maximum Output Frequency
1066
933
800
MHz
MMCM_FOUTMIN
4.69
MHz
TEXTFDVAR
External Clock Feedback Variation
< 20% of clock input period or 1 ns Max
MMCM_RSTMINPULSE
Minimum Reset Pulse Width
5.00
ns
MMCM_FPFDMAX
Maximum Frequency at the Phase Frequency
Detector with Bandwidth Set to High or Optimized
550
500
450
MHz
Maximum Frequency at the Phase Frequency
Detector with Bandwidth Set to Low
550
500
450
MHz
MMCM_FPFDMIN
Minimum Frequency at the Phase Frequency
Detector
10
MHz
MMCM Switching Characteristics Setup and Hold
TMMCMDCK_PSEN/
TMMCMCKD_PSEN
Setup and Hold of Phase Shift Enable
1.04/
0.00
1.04/
0.00
1.04/
0.00
ns
TMMCMDCK_PSINCDEC/
TMMCMCKD_PSINCDEC
Setup and Hold of Phase Shift
Increment/Decrement
1.04/
0.00
1.04/
0.00
1.04/
0.00
ns
TMMCMCKO_PSDONE
Phase Shift Clock-to-Out of PSDONE
0.37
0.40
0.44
ns
Notes:
1.
The MMCM does not filter typical spread-spectrum input clocks because they are usually far below the bandwidth filter frequencies.
2.
The static offset is measured between any MMCM outputs with identical phase.
3.
Values for this parameter are available in the Architecture Wizard.
4.
Includes global clock buffer.
5.
Calculated as FVCO/128 assuming output duty cycle is 50%.
6.
When CASCADE4_OUT = TRUE, FOUTMIN is 0.036 MHz.