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参数资料
| 型号： | MAX11502USA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | IC STD VIDEO FILTER 3CH 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 视频滤波器 |
| 应用： | DVD，机顶盒 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
MAX11501/MAX11502
A sync tip exists at 280mV and peak white exists at
2.28V. The RMS voltage is approximately 1.88V on
each output (80% of the peak-to-peak voltage, plus the
offset) giving:
PDS = 5 x 0.026 = 0.13W
and
PD = 0.13 + 0.078 + 0.078 + 0.078 = 0.364W
The junction temperature is given by:
TJ = TA + (R
θJA x PD)
where TJ is junction temperature, TA is ambient temper-
ature (assume +70°C), and RθJA is thermal resistance
junction to ambient.
From the
Absolute Maximum Ratings section of the data
sheet, the derating factor is 5.9mW/°C above +70°C.
RθJA = 1/(derating factor) = 1/(5.9mW/°C) = 170°C/W
(derating and maximum power dissipation are based on
minimum PCB copper and indicate worst case).
Therefore:
TJ = 70 + (170 x 0.364) = +132°C
In this example, the die temperature is below the
absolute maximum allowed temperature. It is unlikely
under normal circumstances that the maximum die
temperature will be reached, however it is possible if
tolerances of VCC, RL, input voltage etc. are consid-
ered and the ambient temperature is high.
Changing the above example to a single video load on
each output results in:
TJ = +112°C
PCB Layout Recommendations
To help with heat dissipation, connect the power and
ground traces to large copper areas. Bypass VCC to
GND with 0.1F and 1.0F capacitors. Surface-mount
capacitors are recommended for their low inductance.
Place traces carrying video signals appropriately to
avoid mutual coupling. When AC-coupling the inputs,
place the capacitors as close as possible to the device
and keep traces short to minimize parasitic capaci-
tance and inductance. For a recommended PCB lay-
out, refer to the MAX11501/MAX11502 evaluation kit
datasheet.
PW
DOn =
()×
=
.
5
1 88
75
0 078
Three-Channel,
Standard-Definition Video Filters
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11502USA+ | 功能描述:视频 IC 3Ch Standard-Def Video Filter w/Peak RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX11502USA+T | 功能描述:视频 IC 3Ch Standard-Def Video Filter w/Peak RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX11503EUA+ | 功能描述:视频 IC Y/C Summer w/Driver & Chroma Mute RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX11503EUA+T | 功能描述:视频 IC Y/C Summer w/Driver & Chroma Mute RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| MAX11503EVKIT+ | 功能描述:视频 IC 开发工具 MAX11503 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Boards 类型:YPbPr to RGBHV Converters 工具用于评估:LMH1251 工作电源电压:5 V |
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