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参数资料
| 型号： | MPC905DR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 50 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO16 |
| 封装： | PLASTIC, SOIC-16 |
| 文件页数： | 5/5页 |
| 文件大小： | 92K |
| 代理商： | MPC905DR2 |
6
MPC905
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
532
Since this step is well above the threshold region it will not
cause any false clock triggering, however designers may be
uncomfortable with unwanted reflections on the line. To better
match the impedances when driving multiple lines the situation
in Figure 6 should be used. In this case the series terminating
resistors are reduced such that when the parallel combination
is added to the output buffer impedance the line impedance is
perfectly matched.
Figure 6. Optimized Dual Line Termination
10
MPC905
OUTPUT
BUFFER
RS = 30
ZO = 50
RS = 30
ZO = 50
10
+ 30 k 30 = 50 k 50
25
= 25
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