参数资料
型号: EP2C20F256I6N
厂商: ALTERA CORP
元件分类: FPGA
英文描述: FPGA, 1196 CLBS, PBGA256
封装: LEAD FREE, FBGA-256
文件页数: 64/168页
文件大小: 2206K
代理商: EP2C20F256I6N
5–66
Altera Corporation
Cyclone II Device Handbook, Volume 1
February 2008
Timing Specifications
PLL Timing Specifications
Table 5–54 describes the Cyclone II PLL specifications when operating in
the commercial junction temperature range (0° to 85° C), the industrial
junction temperature range (–40° to 100° C), the automotive junction
temperature range (–40° to 125° C), and the extended temperature range
(–40° to 125° C). Follow the PLL specifications for –8 speed grade devices
when operating in the industrial, automotive, or extended temperature
range.
Table 5–54. PLL Specifications Note (1) (Part 1 of 2)
Symbol
Parameter
Min
Typ
Max
Unit
fIN
Input clock frequency (–6 speed grade)
10
MHz
Input clock frequency (–7 speed grade)
10
MHz
Input clock frequency (–8 speed grade)
10
MHz
fINPFD
PFD input frequency (–6 speed grade)
10
402.5
MHz
PFD input frequency (–7 speed grade)
10
402.5
MHz
PFD input frequency (–8 speed grade)
10
402.5
MHz
fINDUTY
Input clock duty cycle
40
60
%
tINJIT TER (5)
Input clock period jitter
200
ps
fOUT_EXT (external
clock output)
PLL output frequency (–6 speed grade)
10
MHz
PLL output frequency (–7 speed grade)
10
MHz
PLL output frequency (–8 speed grade)
10
MHz
fOUT (to global clock)
PLL output frequency (–6 speed grade)
10
500
MHz
PLL output frequency (–7 speed grade)
10
450
MHz
PLL output frequency (–8 speed grade)
10
402.5
MHz
tOUTDUTY
Duty cycle for external clock output (when
set to 50%)
45
55
%
tJITTER (p-p) (2)
Period jitter for external clock output
fOUT_EXT > 100 MHz
——
300
ps
fOUT _EXT
≤100 MHz
30
mUI
tLOCK
Time required to lock from end of device
configuration
100 (6)
μs
tPLL_PSERR
Accuracy of PLL phase shift
±60
ps
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EP2C20F256I8GA 制造商:Altera Corporation 功能描述:
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