參數(shù)資料
型號: SAK-TC1762-128F66HL
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 66 MHz, MICROCONTROLLER, PQFP176
封裝: PLASTIC, LQFP-176
文件頁數(shù): 3/114頁
文件大?。?/td> 852K
代理商: SAK-TC1762-128F66HL
TC1762
Electrical Parameters
Preliminary
Data Sheet
96
V1.0, 2008-04
Note: The frequency of system clock
f
SYS can be selected to be either fCPU or fCPU/2.
With rising number
P of clock cycles the maximum jitter increases linearly up to a value
of
P that is defined by the K-factor of the PLL. Beyond this value of P the maximum
accumulated jitter remains at a constant value. Further, a lower CPU clock frequency
f
CPU results in a higher absolute maximum jitter value.
Figure 4-12 illustrates the jitter curve for for several K/
f
CPU combinations.
Figure 4-12
Approximated Maximum Accumulated PLL Jitter for Typical CPU
Clock Frequencies
f
CPU (overview)
1
±0.0
P [Periods]
±1.0
±2.0
±3.0
±5.0
25
50
75
100
125
150
±4.0
175
TC1762 PLL Jitter (Preliminary)
±6.0
±7.0
±8.0
±9.0
±10.0
±11.0
±12.0
±13.0
Ji
tt
e
r[
n
s
]
f
CP U = 80 MHz (K = 8)
f
CP U
= 80 MHz (K = 5)
f
CP U
= 66 MHz ( K = 7)
f
CP U
= 66 MHz (K = 10)
f
CP U
= 40 MHz
f
CP U = 40 MHz (K = 10)
(K = 17)
oo
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