参数资料
型号: P0037
厂商: Terasic Technologies Inc
文件页数: 15/34页
文件大小: 0K
描述: BOARD DEV/EDUCATION ALTERA DE0
产品培训模块: Cyclone® III FPGA
标准包装: 1
类型: FPGA
适用于相关产品: Cyclone III
所含物品: 板,线缆,CD,电源
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Chapter 1: Cyclone III Device Datasheet
1–15
Switching Characteristics
PLL Specifications
Table 1–20 describes the PLL specifications for Cyclone III devices when operating in
the commercial junction temperature range (0°C to 85°C), the industrial junction
temperature range (–40°C to 100°C), and the automotive junction temperature range
(–40°Cto 125°C). For more information about PLL block, refer to “PLL Block” in
Table 1–20. Cyclone III Devices PLL Specifications (1)
(Part 1 of 2)
Symbol
Parameter
Min
Typ
Max
Unit
f IN
Input clock frequency
5
472.5
MHz
f INPFD
PFD input frequency
5
325
MHz
f VCO
PLL internal VCO operating range
600
1300
MHz
f INDUTY
Input clock duty cycle
40
60
%
t INJITTER_CCJ
Input clock cycle-to-cycle jitter for F INPFD ? 100 MHz
Input clock cycle-to-cycle jitter for F INPFD < 100 MHz
0.15
±750
UI
ps
f OUT_EXT (external clock output)
f OUT (to global clock)
t OUTDUTY
t LOCK
PLL output frequency
PLL output frequency (–6 speed grade)
PLL output frequency (–7 speed grade)
PLL output frequency (–8 speed grade)
Duty cycle for external clock output (when set to 50%)
Time required to lock from end of device configuration
45
50
472.5
472.5
450
402.5
55
1
MHz
MHz
MHz
MHz
%
ms
Time required to lock dynamically (after switchover,
t DLOCK
reconfiguring any non-post-scale counters/delays or
1
ms
areset is deasserted)
t OUTJITTER_PERIOD_DEDCLK
Dedicated clock output period jitter
F OUT ? 100 MHz
F OUT < 100 MHz
300
30
ps
mUI
t OUTJITTER_CCJ_DEDCLK
Dedicated clock output cycle-to-cycle jitter
F OUT ? 100 MHz
F OUT < 100 MHz
300
30
ps
mUI
t OUTJITTER_PERIOD_IO
Regular I/O period jitter
F OUT ? 100 MHz
F OUT < 100 MHz
650
75
ps
mUI
t OUTJITTER_CCJ_IO
t PLL_PSERR
t ARESET
Regular I/O cycle-to-cycle jitter
F OUT ? 100 MHz
F OUT < 100 MHz
Accuracy of PLL phase shift
Minimum pulse width on areset signal.
10
650
75
±50
ps
mUI
ps
ns
t CONFIGPLL
Time required to reconfigure scan chains for PLLs
3.5
SCANCLK
cycles
July 2012
Altera Corporation
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