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參數(shù)資料
| 型號： | MPC9456FA |
| 廠商： | MOTOROLA INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大小： | 125K |
| 代理商： | MPC9456FA |
6
MPC9456
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
606
Figure 6. PCLK MPC9456 AC test reference for Vcc = 3.3V and Vcc = 2.5V
Differential
Pulse Generator
Z = 50W
RT = 50
ZO = 50
RT = 50
ZO = 50
MPC9456 DUT
VCC - 2V
VTT
Figure 7. Output Transition Time Test
Reference
Figure 8. Propagation delay (tPD) test reference
Figure 9. Output Duty Cycle (DC)
Figure 10. 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
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
VCCB2
GND
tP
T0
DC = tP/T0 x 100%
tF
tR
VCC=3.3V
VCC=2.5V
2.4
1.8V
0.55
0.6V
VCC
VCCB2
GND
VOH
VCCB2
GND
VCC
VCCB2
GND
t(LH)
PCLK
QX
PCLK
VCMR
VPP
t(HL)
tSK(LH)
tSK(HL)
Figure 11. Output Transition Time test reference
tF
tR
VCC=3.3V
VCC=2.5V
2.4
1.8V
0.55
0.6V
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