参数资料
型号: EP20K200
厂商: Altera Corporation
英文描述: Programmable Logic Device Family
中文描述: 可编程逻辑器件系列
文件页数: 50/117页
文件大小: 570K
代理商: EP20K200
50
Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Figure 30. Specifications for the Incoming & Generated Clocks
Note (1)
Note to
Figure 30
:
(1)
The tI parameter refers to the nominal input clock period; the tO parameter refers
to the nominal output clock period.
Table 15
summarizes the APEX 20K ClockLock and ClockBoost
parameters for -1 speed-grade devices.
Input
Clock
ClockLock
Generated
Clock
f
CLK1
f
CLK2
CLK4
t
INDUTY
t
I+
t
CLKDEV
t
R
t
F
t
O
t
I+
t
INCLKSTB
t
O
t
O
t
JITTER
t
O+
t
JITTER
t
OUTDUTY
,
,
Table 15. APEX 20K ClockLock & ClockBoost Parameters for -1 Speed-Grade Devices (Part 1 of 2)
Symbol
Parameter
Min
Max
Unit
f
OUT
f
CLK1
(1)
Output frequency
Input clock frequency (ClockBoost clock
multiplication factor equals 1)
Input clock frequency (ClockBoost clock
multiplication factor equals 2)
Input clock frequency (ClockBoost clock
multiplication factor equals 4)
Duty cycle for ClockLock/ClockBoost-generated
clock
Input deviation from user specification in the
Quartus II software (ClockBoost clock
multiplication factor equals 1)
(2)
Input rise time
Input fall time
Time required for ClockLock/ClockBoost to
acquire lock
(4)
25
25
180
180
(1)
MHz
MHz
f
CLK2
16
90
MHz
f
CLK4
10
48
MHz
t
OUTDUTY
40
60
%
f
CLKDEV
25,000
(3)
PPM
t
R
t
F
t
LOCK
5
5
10
ns
ns
μs
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EP20K200BC356-1ES 制造商:未知厂家 制造商全称:未知厂家 功能描述:FPGA
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