參數(shù)資料
型號(hào): SPAKD56366PV120
廠商: MOTOROLA INC
元件分類: 數(shù)字信號(hào)處理
英文描述: 24-BIT, 120 MHz, OTHER DSP, PQFP144
封裝: TQFP-144
文件頁數(shù): 10/147頁
文件大?。?/td> 2156K
代理商: SPAKD56366PV120
MOTOROLA
DSP56366 Advance Information
4-1
SECTION 4
DESIGN CONSIDERATIONS
THERMAL DESIGN CONSIDERATIONS
An estimation of the chip junction temperature, TJ, in °C can be obtained from the following equation:
Where:
TA = ambient temperature °C
RqJA = package junction-to-ambient thermal resistance °C/W
PD = power dissipation in package W
Historically, thermal resistance has been expressed as the sum of a junction-to-case thermal resistance and
a case-to-ambient thermal resistance.
Where:
RθJA = package junction-to-ambient thermal resistance °C/W
RθJC = package junction-to-case thermal resistance °C/W
RθCA = package case-to-ambient thermal resistance °C/W
RθJC is device-related and cannot be influenced by the user. The user controls the thermal environment to
change the case-to-ambient thermal resistance, RθCA. For example, the user can change the air flow around
the device, add a heat sink, change the mounting arrangement on the printed circuit board (PCB), or
otherwise change the thermal dissipation capability of the area surrounding the device on a PCB. This
model is most useful for ceramic packages with heat sinks; some 90% of the heat flow is dissipated
through the case to the heat sink and out to the ambient environment. For ceramic packages, in situations
where the heat flow is split between a path to the case and an alternate path through the PCB, analysis of
the device thermal performance may need the additional modeling capability of a system level thermal
simulation tool.
The thermal performance of plastic packages is more dependent on the temperature of the PCB to which
the package is mounted. Again, if the estimations obtained from RθJA do not satisfactorily answer whether
the thermal performance is adequate, a system level model may be appropriate.
A complicating factor is the existence of three common ways for determining the junction-to-case thermal
resistance in plastic packages.
To minimize temperature variation across the surface, the thermal resistance is measured from the
junction to the outside surface of the package (case) closest to the chip mounting area when that
surface has a proper heat sink.
TJ
TA
PD RθJA
×
()
+
=
RθJA
RθJC RθCA
+
=
相關(guān)PDF資料
PDF描述
SPB3 RECTANGULAR CONNECTOR
SPB4 RECTANGULAR CONNECTOR
SPB5 RECTANGULAR CONNECTOR
SPBH5 RECTANGULAR CONNECTOR
SPD16A1002AL13 Thin Film Resistor Network Isolated and Bussed Circuits RoHS compliant available
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SPAKDSP303AG100 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC SPAKDSP303AG100 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
SPAKDSP303GC100 制造商:Motorola Inc 功能描述:
SPAKDSP303VF100 功能描述:IC DSP 24BIT 100MHZ 196-MAPBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號(hào)處理器) 系列:DSP563xx 標(biāo)準(zhǔn)包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點(diǎn) 接口:I²C,McASP,McBSP 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA(27x27) 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA
SPAKDSP303VL100 功能描述:IC DSP 24BIT 100MHZ 196-MAPBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號(hào)處理器) 系列:DSP563xx 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI,以太網(wǎng),RS-232 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA(20x20) 包裝:托盤
SPAKDSP311VF150 功能描述:IC DSP 24BIT 196-MAPBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號(hào)處理器) 系列:DSP56K/Symphony 標(biāo)準(zhǔn)包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點(diǎn) 接口:I²C,McASP,McBSP 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA(27x27) 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA