LX64BCF1003 LATTICE [Lattice Semiconductor], LX64BCF1003 Datasheet - Page 45
LX64BCF1003
Manufacturer Part Number
LX64BCF1003
Description
High Performance Interfacing and Switching
Manufacturer
LATTICE [Lattice Semiconductor]
Datasheet
1.LX64BCF1003.pdf
(72 pages)
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Lattice Semiconductor
sysCLOCK PLL Timing
t
t
t
t
f
f
f
f
f
f
t
t
T
t
t
t
t
t
t
1. This condition assures that the output phase jitter will remain within specification. Jitter specification is based on optimized M, N and V set-
2. Accumulated jitter measured over 10,000 waveform samples
PWH
PWL
R
INSTB
MDIVIN
MDIVOUT
NDIVIN
NDIVOUT
VDIVIN
VDIVOUT
OUTDUTY
JIT(CC)
CLK_OUT_DLY
PHASE
LOCK
PLL_DELAY
RANGE
PLL_RSTW
JIT(PERIOD)
, t
tings determined by the ispLEVER software.
Symbol
F
2
Input clock, high time
Input clock, low time
Input Clock, rise and fall time
Input clock stability, cycle to cycle (peak)
M Divider input, frequency range
M Divider output, frequency range
N Divider input, frequency range
N Divider output, frequency range
V Divider input, frequency range
V Divider output, frequency range
Output clock, duty cycle
Output clock, cycle to cycle jitter (peak)
Output clock, period jitter (peak)
Input clock to CLK_OUT delay
Input clock to external feedback delta
Time to acquire phase lock after input stable
Delay increment (Lead/Lag)
Total output delay range (lead/lag)
Minimum reset pulse width
Parameter
Over Recommended Operating Conditions
45
80% to 80%
20% to 20%
20% to 80%
Clean reference
10 MHz ≤ f
100 MHz ≤ f
Clean reference
40 MHz ≤ f
160 MHz ≤ f
Clean reference
10 MHz ≤ f
100 MHz ≤ f
Clean reference
40 MHz ≤ f
160 MHz ≤ f
Internal feedback
External feedback
Typical = +/- 250ps
MDIVOUT
MDIVOUT
MDIVOUT
MDIVOUT
VDIVIN
VDIVIN
VDIVIN
VDIVIN
Conditions
1
1
1
1
:
:
:
:
≤ 160 MHz
≤ 400 MHz
≤ 160 MHz
≤ 400 MHz
≤ 40 MHz or
≤ 320 MHz and
≤ 40 MHz or
≤ 320 MHz and
ispGDX2 Family Data Sheet
+/- 0.84 +/- 3.85
+/- 120 +/- 550
Min
100
0.5
0.5
1.8
10
10
10
10
10
40
—
—
—
—
—
—
—
—
—
+/- 300
+/- 600
+/- 150
+/- 600
+/- 150
Max
320
320
320
320
400
320
500
3.0
3.4
60
—
—
25
—
Units
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ps
ps
ps
ps
ps
ns
ps
us
ps
ns
ns
%
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