- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377000 > DSP56364P (飛思卡爾半導(dǎo)體(中國)有限公司) 24-Bit Audio Digital Signal Processor PDF資料下載
參數(shù)資料
| 型號： | DSP56364P |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 24-Bit Audio Digital Signal Processor |
| 中文描述： | 24位音頻數(shù)字信號處理器 |
| 文件頁數(shù)： | 80/148頁 |
| 文件大?。?/td> | 1204K |
| 代理商： | DSP56364P |
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頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁當(dāng)前第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁
Electrical Design Considerations
DSP56364 Technical Data, Rev. 4
5-2
Freescale Semiconductor
To define a value approximately equal to a junction-to-board thermal resistance, the thermal
resistance is measured from the junction to where the leads are attached to the case.
If the temperature of the package case (T
T
) is determined by a thermocouple, the thermal resistance
is computed using the value obtained by the equation:
As noted above, the junction-to-case thermal resistances quoted in this data sheet are determined using the
first definition. From a practical standpoint, that value is also suitable for determining the junction
temperature from a case thermocouple reading in forced convection environments. In natural convection,
using the junction-to-case thermal resistance to estimate junction temperature from a thermocouple
reading on the case of the package will estimate a junction temperature slightly hotter than actual
temperature. Hence, the new thermal metric, thermal characterization parameter or
Ψ
JT
, has been defined
to be (T
J
– T
T
)/P
D
. This value gives a better estimate of the junction temperature in natural convection
when using the surface temperature of the package. Remember that surface temperature readings of
packages are subject to significant errors caused by inadequate attachment of the sensor to the surface and
to errors caused by heat loss to the sensor. The recommended technique is to attach a 40-gauge
thermocouple wire and bead to the top center of the package with thermally conductive epoxy.
5.2
Electrical Design Considerations
CAUTION
This device contains circuitry protecting against damage due to high static
voltage or electrical fields. However, normal precautions should be taken to
avoid exceeding maximum voltage ratings. Reliability of operation is
enhanced if unused inputs are tied to an appropriate logic voltage level (e.g.,
either GND or V
CC
). The suggested value for a pullup or pulldown resistor
is 10 k ohm.
Use the following list of recommendations to assure correct DSP operation:
Provide a low-impedance path from the board power supply to each V
CC
pin on the DSP and from
the board ground to each GND pin.
Use at least six 0.01–0.1
μ
F bypass capacitors positioned as close as possible to the four sides of
the package to connect the V
CC
power source to GND.
Ensure that capacitor leads and associated printed circuit traces that connect to the chip V
CC
and
GND pins are less than 1.2 cm (0.5 inch) per capacitor lead.
Use at least a four-layer PCB with two inner layers for V
CC
and GND.
Because the DSP output signals have fast rise and fall times, PCB trace lengths should be minimal.
This recommendation particularly applies to the address and data buses as well as the IRQA,
IRQB, IRQD, and TA pins. Maximum PCB trace lengths on the order of 15 cm (6 inches) are
recommended.
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
CC
and GND circuits.
T
J
T
T
–
(
)
P
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DSP56366P | 24-Bit Audio Digital Signal Processor |
| DSP56366UM | 24-Bit Audio Digital Signal Processor |
| DSP56367P | 24-Bit Audio Digital Signal Processor |
| DSP56367UM | 24-Bit Audio Digital Signal Processor |
| DSP56600 | Implementing Viterbi Decoders Using the VSL Instruction on DSP Families |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP56364UM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56364 24-Bit Digital Signal Processor User＇s Manual |
| DSP56366 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56366 24-Bit Audio Digital Signal Processor |
| DSP56366P | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor |
| DSP56366UM | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor |
| DSP56367 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。