參數(shù)資料
型號(hào): MAX11501USA+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 8/11頁(yè)
文件大?。?/td> 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
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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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