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参数资料
| 型号： | MPC92474FA |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 700 MHz, OTHER CLOCK GENERATOR, PQFP48 |
| 封装： | LQFP-48 |
| 文件页数： | 2/12页 |
| 文件大小： | 172K |
| 代理商： | MPC92474FA |
Advanced Clock Drivers Devices
10
Freescale Semiconductor
MPC92474
PREL
IM
IN
AR
Y
Using the On-Board Crystal Oscillators
The MPC92474 features two fully integrated Pierce
oscillators to minimize system implementation costs. Other
than the addition of a crystal no external components are
required.The crystal selection should be 10 to 20 MHz,
parallel resonant crystal type with a load specification of
CL =10pF.
The crystal should be located as close to the MPC92474
XTAL_IN and XTAL_OUT pins as possible to avoid any board
level parasitic.
Table 10 specifies the performance requirements of the
crystals to be used with the MPC92474.
Table 10. Recommended Crystal Specifications
Parameter
Value
Crystal Cut
Fundamental AT Cut
Resonance
Parrallel Resonance
Shunt Capacitance (CO)
5–7 pF
Load Capacitance (CL)
10 pF
Equivalent Series Resistance (ESR)
20 to 60
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