LFEC10E-3F256C Lattice Semiconductor Corp., LFEC10E-3F256C Datasheet - Page 62

• Manufacturer Part Number: LFEC10E-3F256C
• Description: Latticeecp/ec Family of Fpga Devices Has Been Optimized to Deliver Mainstream Fpga Features at Low Cost.for Maximum Performance And Value, The Latticeecp (EConomy Plus) Fpga Concept Combines an Efficient Fpgafabric With High-speed Dedicated Functions
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
sysCLOCK PLL Timing
f
f
f
f
f
AC Characteristics
t
t
t
t
t
t
t
t
t
t
1. Output clock is valid after t
IN
OUT
OUT2
VCO
PFD
DT
OPJIT
SK
W
LOCK
PA
R
IPJIT
HI
LO
/t
F
Parameter
1
Input Clock Frequency (CLKI, CLKFB)
Output Clock Frequency (CLKOP, CLKOS)
K-Divider Output Frequency (CLKOK)
PLL VCO Frequency
Phase Detector Input Frequency
Output Clock Duty Cycle
Output Clock Period Jitter
Input Clock to Output Clock Skew
Output Clock Pulse Width
PLL Lock-in Time
Programmable Delay Unit
Input Clock Rise/Fall Time
Input Clock Period Jitter
Input Clock High Time
Input Clock Low Time
LOCK
for PLL reset and dynamic delay adjustment.
Over Recommended Operating Conditions
Descriptions
3-20
default duty cycle selected
f
f
Divider ratio = integer
At 90% or 10%
10% to 90%
90% to 90%
10% to 10%
OUT
OUT
≥ 100MHz
< 100MHz
Conditions
DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
0.258
Min.
420
100
0.5
0.5
33
33
33
45
—
—
—
—
—
—
1
+/- 100
+/- 200
+/- 200
Max.
0.02
420
420
210
840
150
400
55
—
—
—
—
1
Units
UIPP
MHz
MHz
MHz
MHz
MHz
ps
ps
ns
us
ps
ns
ps
ns
ns
%