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參數(shù)資料
| 型號(hào)： | MAX11501USA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 10/11頁(yè) |
| 文件大小： | 0K |
| 描述： | IC STD VIDEO FILTER 3CH 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 視頻濾波器 |
| 應(yīng)用： | DVD，HD，機(jī)頂盒，錄音機(jī) |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11502USA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Three-Channel, Standard-Definition Video Filters |
| MAX11502USA+ | 功能描述:視頻 IC 3Ch Standard-Def Video Filter w/Peak RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MAX11502USA+T | 功能描述:視頻 IC 3Ch Standard-Def Video Filter w/Peak RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MAX11503EUA+ | 功能描述:視頻 IC Y/C Summer w/Driver & Chroma Mute RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MAX11503EUA+T | 功能描述:視頻 IC Y/C Summer w/Driver & Chroma Mute RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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