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| 型号： | MPC93R52ACR2 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 93R SERIES, PLL BASED CLOCK DRIVER, 11 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封装： | LEAD FREE, LQFP-32 |
| 文件页数： | 2/16页 |
| 文件大小： | 337K |
| 代理商： | MPC93R52ACR2 |
Advanced Clock Drivers Devices
10
Freescale Semiconductor
MPC93R52
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 12 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 11. Single versus Dual Waveforms
Time (ns)
Vo
lta
ge
(V)
3.0
2.5
2.0
1.5
1.0
0.5
0
2
4
6
8
10
12
14
OutB
tD = 3.9386
OutA
tD = 3.8956
In
Figure 12. Optimized Dual Line Termination
14
MPC93R52
Output
Buffer
RS = 22
ZO = 50
RS = 22
ZO = 50
14
+ 22 || 22 = 50 || 50
25
= 25
Pulse
Generator
Z = 50
RT = 50
ZO = 50
RT = 50
ZO = 50
MPC93R52 DUT
VTT
Figure 13. CCLK MPC93R52 AC Test Reference for VCC = 3.3 V and VCC = 2.5 V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC93R52FA | 功能描述:时钟发生器及支持产品 3.3V 240MHz Clock Generator RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| MPC93R52FAR2 | 制造商:Integrated Device Technology Inc 功能描述:Zero Delay PLL Clock Generator Single 32-Pin LQFP T/R 制造商:Integrated Device Technology Inc 功能描述:ZERO DLY PLL CLOCK GEN SGL 32LQFP - Tape and Reel |
| MPC940 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP |
| MPC940L | 制造商:Motorola Inc 功能描述: |
| MPC940LAC | 功能描述:时钟驱动器及分配 FSL 1-18 LVCMOS/LVPE CL to LVCMOS Fanout RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
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