參數(shù)資料
型號: MPC9772FAR2
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘產(chǎn)生/分配
英文描述: 240 MHz, OTHER CLOCK GENERATOR, PQFP52
封裝: LQFP-52
文件頁數(shù): 6/16頁
文件大小: 238K
代理商: MPC9772FAR2
MPC9772
MOTOROLA
14
TIMING SOLUTIONS
Figure 16. Output-to-Output Skew tSK(O)
Figure 17. Propagation Delay (t(), Static Phase
Offset) Test Reference
Figure 18. Output Duty Cycle (DC)
The pin-to-pin skew is defined as the worst case difference in
propagation delay between any similar delay path within a single
device
The time from the PLL controlled edge to the non controlled
edge, divided by the time between PLL controlled edges,
expressed as a percentage
VCC
VCC÷2
GND
VCC
VCC÷2
GND
tSK(O)
VCC
VCC÷2
GND
tP
T0
DC = tP/T0 x 100%
VCC
VCC÷2
GND
VCC
VCC÷2
GND
t()
CCLKx
FB_IN
TJIT() = |T0-T1mean|
CCLKx
FB_IN
The deviation in t0 for a controlled edge with respect to a t0 mean in a
random sample of cycles
Figure 19. I/O Jitter
TN
TJIT(CC) = |TN-TN+1|
TN+1
TJIT(PER) = |TN-1/f0|
T0
Figure 20. Cycle-to-Cycle Jitter
Figure 21. Period Jitter
The variation in cycle time of a signal between adjacent cycles, over a
random sample of adjacent cycle pairs
The deviation in cycle time of a signal with respect to the ideal period over a
random sample of cycles
tF
tR
VCC=3.3V
2.4
0.55
Figure 22. Output Transition Time Test Reference
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