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| 型号： | MAX11505CUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC STD VIDEO FILTER 4CH 10UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
MAX11504/MAX11505
Four-Channel, Standard-Definition
Video Filters
_______________________________________________________________________________________
7
For bipolar signals such as C, Pb, and Pr, bias the AC-
coupled inputs to a fixed DC voltage, typically 0.59V, to
ensure that the transparent clamp remains off. A suit-
able network is shown in Figure 4. Determine the bias
voltage using:
where IL = the input leakage current (typically 0.5A).
Standard-Definition Filters
The MAX11504/MAX11505 filters are optimized to deliv-
er a flat passband along with high stopband attenua-
tion. The filter characteristic has been chosen to provide
an excellent time domain response with low overshoot.
The typical -3dB frequency of 8.6MHz guarantees mini-
mal attenuation in the passband while at the same time
offering a 27MHz attenuation of typically -50dB.
Channel 1 of the MAX11505 has 0.8dB of high-frequency
boost and a -3dB frequency of 8.9MHz.
Output Buffer
The MAX11504/MAX11505 feature output buffers with
+6dB gain that drive two standard 150 video loads.
A typical load (Figure 5a) is a 75 back-match
resistor, an optional 220F or larger coupling
capacitor, and a 75 termination resistor. The
MAX11504/MAX11505 clamp the signal, forcing the
blanking level to less than 1V at the termination resis-
tor. This allows driving video loads to meet digital TV
specifications without the need for costly AC-coupling
capacitors. When driving two parallel loads per output
(Figure 5b), thermal considerations must be taken into
account, especially for DC-coupled outputs (see the
Junction Temperature Calculations section.)
V
R
RR
VI
R
BCC
L
=
+
×
2
12
1
(
)
IN_
R2
120k
R1
820k
0.1F
DAC
ENCODER
MAX11504
MAX11505
VCC
Figure 4. AC-Coupling for Bipolar Signals (C, Pb, Pr)
(a)
(b)
OUT_
75
220F
(OPTIONAL)
75
MAX11504
MAX11505
OUT_
MAX11504
MAX11505
75
220F
(OPTIONAL)
75
220F
(OPTIONAL)
75
Figure 5. Typical Output Loads
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相关代理商/技术参数 |
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|---|---|
| MAX11506 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, 6-Channel SD Plus HD/SD Selectable Video Filters and Buffers |
| MAX11506CEE | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, 6-Channel SD Plus HD/SD Selectable Video Filters and Buffers |
| MAX11506CEE+ | 功能描述:视频 IC 6Ch SD+HD/SD Select Video Filters & Buff 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 |
| MAX11506CEE+T | 功能描述:视频 IC 6Ch SD+HD/SD Select Video Filters & Buff 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 |
| MAX11506EVKIT+ | 功能描述:视频 IC 开发工具 MAX11506 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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