参数资料
型号: MAX11502USA+
厂商: Maxim Integrated Products
文件页数: 8/11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
Three-Channel,
Standard-Definition Video Filters
6
_______________________________________________________________________________________
Input Coupling
The choice of AC- or DC-coupling the input depends
on the video source. Many DACs provide a current out-
put and are terminated to ground with a resistor. Such
DAC outputs are conveniently DC-coupled to the
MAX11501/MAX11502. Use AC-coupling when the DC
level of the video signal is unknown or outside the
specified input range of the MAX11501/MAX11502,
such as SCART or VCC terminated DAC outputs.
DC-Coupled Inputs
If the input is DC-coupled, the input voltage must
remain above zero but not exceed the maximum input
voltage of 1.4V (typical).
AC-Coupled Inputs
If the input is AC-coupled, the transparent clamps are
active and set the lowest point of the signal at ground.
This is appropriate for unipolar signals such as Y, R, G,
or B, with or without sync pulses (Figure 3).
For bipolar signals such as Pb and Pr, bias the AC-cou-
pled inputs to a fixed DC voltage, typically 0.59V, to ensure
that the transparent clamp remains off. A suitable network
is shown in Figure 4. Determine the bias voltage using:
where IL is the input leakage current (typically 0.5A).
V
R
RR
VI
R
BCC
L
=
+
×
()
(),
2
12
1
INPUT SIGNAL
0.32V
1.02V
0.02V
0.00V
OUTPUT SIGNAL
0.92V
0.32V
IN_
OUT_
MAX11501
MAX11502
2.32V
Figure 2. Typical DC-Coupled Signal
IN_
MAX11501
MAX11502
0.1
μF
ENCODER
DAC
Figure 3. Simple AC-Coupling for Unipolar Signals (Y, R, G, B)
IN_
R1
820k
Ω
R2
120k
Ω
MAX11501
MAX11502
0.1
μF
ENCODER
DAC
VCC
Figure 4. AC-Coupling for Bipolar Signals (Pb, Pr)
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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