- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377001 > DSP56F827 (飛思卡爾半導體(中國)有限公司) 16-bit Hybrid Controller(16位混合控制器) PDF資料下載
參數(shù)資料
| 型號： | DSP56F827 |
| 廠商： | 飛思卡爾半導體(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)： | 49/52頁 |
| 文件大小： | 1175K |
| 代理商： | DSP56F827 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁當前第49頁第50頁第51頁第52頁
Electrical Design Considerations
56F827 Technical Data
49
The thermal characterization parameter is measured per JESD51-2 specification using a 40-gauge type T
thermocouple epoxied to the top center of the package case. The thermocouple should be positioned so that
the thermocouple junction rests on the package. A small amount of epoxy is placed over the thermocouple
junction and over about 1mm of wire extending from the junction. The thermocouple wire is placed flat
against the package case to avoid measurement errors caused by cooling effects of the thermocouple wire.
When heat sink is used, the junction temperature is determined from a thermocouple inserted at the interface
between the case of the package and the interface material. A clearance slot or hole is normally required in
the heat sink. Minimizing the size of the clearance is important to minimize the change in thermal
performance caused by removing part of the thermal interface to the heat sink. Because of the experimental
difficulties with this technique, many engineers measure the heat sink temperature and then back-calculate
the case temperature using a separate measurement of the thermal resistance of the interface. From this case
temperature, the junction temperature is determined from the junction-to-case thermal resistance.
5.2 Electrical Design Considerations
Use the following list of considerations to assure correct operation:
Provide a low-impedance path from the board power supply to each V
DD,
V
DDIO,
and V
DDA
pin on
the hybrid controller, and from the board ground to each V
SS,
V
SSIO,
and V
SSA
(GND) pin.
The minimum bypass requirement is to place 0.1
μ
F capacitors positioned as close as possible to the
package supply pins. The recommended bypass configuration is to place one bypass capacitor on
each of the V
DD
/V
SS
pairs, including V
DDA
/V
SSA
and V
DDIO
/V
SSIO.
Ceramic and tantalum
capacitors tend to provide better performance tolerances.
Ensure that capacitor leads and associated printed circuit traces that connect to the chip V
DD,
V
DDIO,
and V
DDA
and V
SS,
V
SSIO,
and V
SSA
(GND) pins are less than 0.5 inch per capacitor lead.
Bypass the V
DD
and V
SS
layers of the PCB with approximately 100
μ
F, preferably with a high-grade
capacitor such as a tantalum capacitor.
Because the controller’s output signals have fast rise and fall times, PCB trace lengths should be
minimal.
Consider all device loads as well as parasitic capacitance due to PCB traces when calculating
capacitance. This is especially critical in systems with higher capacitive loads that could create
higher transient currents in the V
DD
and V
SS
circuits.
CAUTION
This device contains protective circuitry to guard
against damage due to high static voltage or
electrical fields. However, normal precautions are
advised to avoid application of any voltages higher
than maximum-rated voltages to this high-impedance
circuit. Reliability of operation is enhanced if unused
inputs are tied to an appropriate voltage level.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DSP8-08AC | Phase-leg Rectifier Diode ISOPLUS220 |
| DSP8-08 | Phase-leg Rectifier Diode |
| DSP8-08AS | Phase-leg Rectifier Diode |
| DSP8-08S | Phase-leg Rectifier Diode |
| DSP8-12S | Phase-leg Rectifier Diode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP56F827/D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:56F827 16-bit Hybrid Controller |
| DSP56F827E | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| DSP56F827E/D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:56F827 16-bit Hybrid Controller |
| DSP56F827EVM | 制造商:Freescale Semiconductor 功能描述:Microprocessor Support IC For Use With:5 |
| DSP56F827EVMUM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:56F827 Evaluation Module Hardware User＇s Manual |
發(fā)布緊急采購，3分鐘左右您將得到回復。