- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄364690 > AP513 DCS-band 8W HBT Amplifier Module PDF資料下載
參數(shù)資料
| 型號： | AP513 |
| 英文描述： | DCS-band 8W HBT Amplifier Module |
| 中文描述： | 集散控制系統(tǒng)，帶8瓦特異質(zhì)結(jié)雙極晶體管放大器模塊 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 319K |
| 代理商： | AP513 |
Specifications and information are subject to change without notice
WJ Communications, Inc
Phone 1-800-WJ1-4401
FAX: 408-577-6621
e-mail: sales@wj.com
Web site: www.wj.com
Page 4 of 5 June 2006
AP513
DCS-band 8W HBT Amplifier Module
Product Information
The Communications Edge
TM
MTTF Calculation
The MTTF of the AP513 can be calculated by first
determining how much power is being dissipated by the
amplifier module. Because the device’s intended application
is to be a power amplifier pre-driver or final stage output
amplifier, the output RF power of the amplifier will help
lower the overall power dissipation. In addition, the
amplifier can be biased with different quiescent currents, so
the calculation of the MTTF is custom to each application.
The power dissipation of the device can be calculated with
the following equation:
P
diss
= V
cc
* I
cc
– (Output RF Power – Input RF Power),
V
cc
= Operating supply voltage =
12V
I
cc
= Operating current
{The RF power is converted to Watts}
While the maximum recommended case temperature on the
datasheet is listed at 85
C, it is suggested that customers
maintain an MTTF above 1 million hours. This would
convert to a derating curve for maximum case temperature vs.
power dissipation as shown in the plot below.
to maintain 1 million hours MTTF
90
50
60
70
80
8
10
12
14
16
18
20
22
24
Power Dissipation (Watts)
M
To calculate the MTTF for the module, the junction
temperature needs to be determined. This can be easily
calculated with the module’s power dissipation, the thermal
resistance value, and the case temperature of operation:
T
j
= P
diss
* R
th
+ T
case
T
j
= Junction temperature
P
diss
= Power dissipation (calculated from above)
R
th
= Thermal resistance =
4.5
C/W
T
case
= Case temperature of module’s heat sink
From a numerical standpoint, the MTTF can be calculated
using the Arrhenius equation:
MTTF = A* e
(Ea/k/Tj)
A = Pre-exponential Factor =
6.087 x 10
-11
hours
Ea = Activation Energy =
1.39 eV
k = Boltzmann’s Constant =
8.617 x 10
-5
eV/ oK
T
j
= Junction Temperature (oK) = T
j
(oC) + 273
A graphical view of the MTTF can be shown in the plot
below.
MTTF vs. Junction Temperature
1.E+07
1.E+05
1.E+06
130
140
150
160
170
180
Junction Temperature (°C)
M
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AP513-PCB | DCS-band 8W HBT Amplifier Module |
| AP5S | HCMOS/TTL COMPATIBLE SURFACE-MOUNT PROGRAMMABLE CRYSTAL CLOCK OSCILLATOR |
| AP601 | High Dynamic Range 1.8W 28V HBT Amplifier |
| AP601-F | High Dynamic Range 1.8W 28V HBT Amplifier |
| AP601-PCB1960 | High Dynamic Range 1.8W 28V HBT Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP-5-13 | 功能描述:揚(yáng)聲器連接器 FEM CHASIS Round FLNG Machined CONT RoHS:否 制造商:Neutrik 標(biāo)準(zhǔn):Speakon, HPC 型式:Male 位置/觸點數(shù)量:2 端接類型: 安裝風(fēng)格:PCB 方向:Vertical 觸點電鍍: 顏色: 觸點材料: 電壓額定值: 電流額定值: |
| AP513-PCB | 功能描述:射頻開發(fā)工具 1.80-1.88 GHz Brd 12V 8W 3-stage RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| AP-5-14 | 功能描述:揚(yáng)聲器連接器 ML CHASIS Round FLNG Machined CONT RoHS:否 制造商:Neutrik 標(biāo)準(zhǔn):Speakon, HPC 型式:Male 位置/觸點數(shù)量:2 端接類型: 安裝風(fēng)格:PCB 方向:Vertical 觸點電鍍: 顏色: 觸點材料: 電壓額定值: 電流額定值: |
| AP51711 | 功能描述:WE OFFER THE 3M AQUA-PURE 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:12 |
| AP520 | 功能描述:GPS開發(fā)工具 APPLICATION BOARD FOR IT520 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Evaluation Boards 工具用于評估:IT600, STM32F20x 頻率:1.575 GHz 工作電源電壓:1.8 V 接口類型:Wireless |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。