EP20K400CB652C7 Altera, EP20K400CB652C7 Datasheet - Page 49

• Manufacturer Part Number: EP20K400CB652C7
• Description: APEX 20KC
• Manufacturer: Altera

Altera Corporation
t
t
t
t
t
t
t
f
f
f
f
OUTJITTER
OUTDUTY
LOCK
VCO
CLOCK0
CLOCK1
CLOCK0_EXT
R
F
INDUTY
INJITTER
Table 11. APEX 20KC ClockLock & ClockBoost Parameters
Table 12. APEX 20KC Clock Input & Output Parameters (Part 1 of 2)
Symbol
Symbol
(4)
(2)
,
(3)
Input rise time
Input fall time
Input duty cycle
Input jitter peak-to-peak
RMS jitter on ClockLock or
ClockBoost-generated clock
Duty cycle for ClockLock or
ClockBoost-generated clock
Time required for ClockLock or
ClockBoost to acquire lock
Voltage controlled oscillator
operating range
Clock0 PLL output frequency
for internal use
Clock1 PLL output frequency
for internal use
Output clock frequency for
external clock0 output
Parameter
Parameter
Tables 11
for APEX 20KC devices.
and
12
SSTL-2 Class II
SSTL-3 Class II
SSTL-2 Class I
SSTL-3 Class I
I/O Standard
3.3-V LVTTL
2.5-V LVTTL
1.8-V LVTTL
summarize the ClockLock and ClockBoost parameters
Condition
GTL+
LVDS
APEX 20KC Programmable Logic Device Data Sheet
-7 Speed Grade
Note (1)
Min
200
1.5
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
20
Min
40
45
Max
Note (1)
500
335
335
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
Typ
-8 Speed Grade
Min
200
1.5
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
20
2% of input
0.35% of
period
output
period
Max
60
55
40
5
5
Max
500
200
200
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
Unit
Units
ns
ns
µs
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
%
%
%
%
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