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參數(shù)資料
| 型號： | DSP56F805 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | 16-bit Hybrid Controller(16位混合控制器) |
| 中文描述： | 16位混合控制器（16位混合控制器） |
| 文件頁數(shù)： | 25/48頁 |
| 文件大?。?/td> | 967K |
| 代理商： | DSP56F805 |
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External Clock Operation
56F805 Technical Data
25
This is the value load capacitance that should be used when selecting a crystal and determining the actual
frequency of operation of the crystal oscillator circuit.
Figure 9. Connecting to a Crystal Oscillator
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 10
, 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 9
no external load capacitors should be used.
Ceramic Resonator
Figure 10. Connecting a Ceramic Resonator
Note:
Motorola 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 11
. The external clock
source is connected to XTAL and the EXTAL pin is grounded.
External Clock Source
Figure 11. Connecting an External Clock Signal
Recommended External Crystal
Parameters:
R
z
= 1 to 3 M
f
c
= 8MHz (optimized for 8MHz)
EXTAL XTAL
R
z
f
c
Recommended Ceramic Resonator
Parameters:
R
z
= 1 to 3 M
f
c
= 8MHz (optimized for 8MHz)
EXTAL XTAL
R
z
f
c
56F805
XTAL
EXTAL
External
Clock
V
SS
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP56F805ACIM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Targeting Document for the 56F805 3-Phase AC Induction Motor V/Hz Control |
| DSP56F805BLDCQE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Targeting Document for the 56F805 BLDC Motor Control Application with Quadrature Encoder |
| DSP56F805D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16-bit Hybrid Controller |
| DSP56F805E | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56F805EVM | 功能描述:開發(fā)板和工具包 - 其他處理器 Evaluation Kit For DSP56F805 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: |
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