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參數(shù)資料
| 型號： | MPC93R51AC |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 93R SERIES, PLL BASED CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, LEAD FREE, LQFP-32 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 339K |
| 代理商： | MPC93R51AC |
Advanced Clock Drivers Devices
Freescale Semiconductor
9
MPC93R51
Figure 8. Single versus Dual Waveforms
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 9 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 9. Optimized Dual Line Termination
TIME (ns)
VO
LT
AG
E(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
14
MPC93R51
OUTPUT
BUFFER
RS = 22
ZO = 50
RS = 22
ZO = 50
14
+ 22 || 22 = 50 || 50
25
= 25
Figure 10. TCLK MPC93R51 AC Test Reference for VCC = 3.3 V
Pulse
Generator
Z = 50
RT = 50
ZO = 50
RT = 50
ZO = 50
MPC93R51 DUT
VTT
Differential Pulse
Generator
Z = 50
RT = 50
ZO = 50
RT = 50
ZO = 50
MPC93R51 DUT
VTT
Figure 11. PCLK MPC9R351 AC Test Reference
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MPC93R51ACR2 | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 FSL 1-9 LVCMOS/LVPEC L to LVCMOS PLL Cloc RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MPC93R51D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE PLL CLOCK DRIVER |
| MPC93R51FA | 功能描述:時鐘驅動器及分配 3.3V 240MHz Clock Generator RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| MPC93R51FAR2 | 制造商:Integrated Device Technology Inc 功能描述:PLL CLOCK DRVR SGL 32LQFP - Tape and Reel |
| MPC93R52 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE 3.3V LVCMOS 1:11 CLOCK GENERATOR |
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