參數(shù)資料
型號(hào): MPC9774FA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 時(shí)鐘及定時(shí)
英文描述: 9774 SERIES, PLL BASED CLOCK DRIVER, 14 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
封裝: PLASTIC, LQFP-52
文件頁數(shù): 2/10頁
文件大?。?/td> 186K
代理商: MPC9774FA
MPC9774
FREESCALE SEMICONDUCTOR ADVANCED CLOCK DRIVERS DEVICE DATA
233
Figure 13. Output-to-Output Skew tSK(O)
Figure 14. Propagation Delay (t(), Static Phase
Offset) Test Reference
Figure 15. 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 16. I/O Jitter
TN
TJIT(CC) = |TN–TN+1|
TN+1
TJIT(PER) = |TN–1/f0|
T0
Figure 17. Cycle-to-Cycle Jitter
Figure 18. 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 = 3.3 V
2.4
0.55
Figure 19. Output Transition Time Test Reference
相關(guān)PDF資料
PDF描述
MPC9774AE 9774 SERIES, PLL BASED CLOCK DRIVER, 14 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
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