Datasheet

Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
DS189 (v1.2) June 20, 2017 www.xilinx.com
Preliminary Product Specification 37
MMCM Switching Characteristics
Table 37: MMCM Specification
Symbol Description
V
CCINT
Operating Voltage and Speed
Grade
Units
1.0V 0.95V
-2 -1 -1L
MMCM_F
INMAX
Maximum input clock frequency. 800.00 800.00 800.00 MHz
MMCM_F
INMIN
Minimum input clock frequency. 10.00 10.00 10.00 MHz
MMCM_F
INJITTER
Maximum input clock period jitter. < 20% of clock input period or 1 ns Max
MMCM_F
INDUTY
Allowable input duty cycle: 10—49 MHz. 25 25 25 %
Allowable input duty cycle: 50—199
MHz.
30 30 30 %
Allowable input duty cycle: 200—399
MHz.
35 35 35 %
Allowable input duty cycle: 400—499
MHz.
40 40 40 %
Allowable input duty cycle: > 500 MHz. 45 45 45 %
MMCM_F
MIN_PSCLK
Minimum dynamic phase-shift clock
frequency.
0.01 0.01 0.01 MHz
MMCM_F
MAX_PSCLK
Maximum dynamic phase-shift clock
frequency.
500.00 450.00 450.00 MHz
MMCM_F
VCOMIN
Minimum MMCM VCO frequency. 600.00 600.00 600.00 MHz
MMCM_F
VCOMAX
Maximum MMCM VCO frequency. 1440.00 1200.00 1200.00 MHz
MMCM_F
BANDWIDTH
Low MMCM bandwidth at typical.
(1)
1.00 1.00 1.00 MHz
High MMCM bandwidth at typical.
(1)
4.00 4.00 4.00 MHz
MMCM_T
STATPHAOFFSET
Static phase offset of the MMCM
outputs.
(2)
0.12 0.12 0.12 ns
MMCM_T
OUTJITTER
MMCM output jitter. Note 3
MMCM_T
OUTDUTY
MMCM output clock duty-cycle
precision.
(4)
0.20 0.20 0.20 ns
MMCM_T
LOCKMAX
MMCM maximum lock time. 100.00 100.00 100.00 µs
MMCM_F
OUTMAX
MMCM maximum output frequency. 800.00 800.00 800.00 MHz
MMCM_F
OUTMIN
MMCM minimum output frequency.
(5)(6)
4.69 4.69 4.69 MHz
MMCM_T
EXTFDVAR
External clock feedback variation. < 20% of clock input period or 1 ns Max
MMCM_RST
MINPULSE
Minimum reset pulse width. 5.00 5.00 5.00 ns
MMCM_F
PFDMAX
Maximum frequency at the phase
frequency detector.
500.00 450.00 450.00 MHz
MMCM_F
PFDMIN
Minimum frequency at the phase
frequency detector.
10.00 10.00 10.00 MHz
MMCM_T
FBDELAY
Maximum delay in the feedback path. 3 ns Max or one CLKIN cycle
MMCM Switching Characteristics Setup and Hold
T
MMCMDCK_PSEN
/
T
MMCMCKD_PSEN
Setup and hold of phase-shift enable. 1.04/0.00 1.04/0.00 1.04/0.00 ns