參數(shù)資料
型號: MPC961CAC
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘及定時
英文描述: 961 SERIES, PLL BASED CLOCK DRIVER, 17 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
封裝: PLASTIC, LQFP-32
文件頁數(shù): 11/11頁
文件大小: 736K
代理商: MPC961CAC
MPC961C Data Sheet
LOW VOLTAGE ZERO DELAY BUFFER
MPC961C REVISION 5 AUGUST 17, 2009
9
2009 Integrated Device Technology, Inc.
Figure 13. Propagation Delay (tPD, static phase
offset) Test Reference
Figure 14. Output Duty Cycle (DC)
Figure 12. Output-to-Output Skew tSK(O)
The pin-to-pin skew is defined as the worst case difference
in propagation delay between any similar delay path within a
single device
VCC
VCC ÷ 2
GND
VCC
VCC ÷ 2
GND
tSK(O)
VCC
VCC ÷ 2
GND
VCC
VCC ÷ 2
GND
t()
CCLK
FB_IN
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
tP
T0
DC = tP/T0 x 100%
Figure 16. Cycle-to-Cycle Jitter
Figure 15. I/O Jitter
Figure 18. Output Transition Time Test
Reference
tF
tR
VCC=3.3 V
VCC=2.5 V
2.4
1.8 V
0.55
0.6 V
TJIT() = |T0–T1mean|
CCLK
FB_IN
The deviation in t0 for a controlled edge with respect to a t0 mean
in a random sample of cycles
The variation in cycle time of a signal between adjacent cycles,
over a random sample of adjacent cycle pairs
TN
TJIT(CC) = |TN–TN+1|
TN+1
The deviation in cycle time of a signal with respect to the ideal
period over a random sample of cycles
TJIT(PER) = |TN–1/f0|
T0
Figure 17. Period Jitter
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