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參數(shù)資料
| 型號： | DSP56F803E |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | 16-bit Digital Signal Controllers |
| 中文描述： | 16位數(shù)字信號控制器 |
| 文件頁數(shù)： | 28/52頁 |
| 文件大?。?/td> | 414K |
| 代理商： | DSP56F803E |
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56F803 Technical Data, Rev. 15
28
Freescale Semiconductor
3.5.2
It is also possible to drive the internal oscillator with a ceramic resonator, assuming the overall system
design can tolerate the reduced signal integrity. In
Figure 3-8
, a typical ceramic resonator circuit is
shown. Refer to supplier’s recommendations when selecting a ceramic resonator and associated
components. The resonator and components should be mounted as close as possible to the EXTAL and
XTAL pins. The internal 56F80x oscillator circuitry is designed to have no external load capacitors
present. As shown in
Figure 3-7
no external load capacitors should be used.
Ceramic Resonator
Figure 3-8 Connecting a Ceramic Resonator
Note:
Freescale recommends only two terminal ceramic resonators vs. three terminal resonators
(which contain an internal bypass capacitor to ground).
3.5.3
The recommended method of connecting an external clock is given in
Figure 3-9
. The external clock
source is connected to XTAL and the EXTAL pin is grounded.
External Clock Source
Figure 3-9 Connecting an External Clock Signal
Recommended Ceramic Resonator
Parameters:
R
z
= 1 to 3 M
Ω
f
c
= 8MHz (optimized for 8MHz)
EXTAL XTAL
R
z
f
c
56F803
XTAL
EXTAL
External
Clock
V
SS
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| DSP56F803EVM | 功能描述:開發(fā)板和工具包 - 其他處理器 Evaluation Kit For DSP56F803 RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| DSP56F803EVMUM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:56F803 Evaluation Module Hardware User＇s Manual |
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