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MIC1700 PDF预览

MIC1700

更新时间: 2024-11-28 21:55:43
品牌 Logo 应用领域
麦瑞 - MICREL 电视LTE
页数 文件大小 规格书
10页 133K
描述
HD TV / SD TV 6 TH ORDER VIDEO FILTER FOR COMPONENT

MIC1700 数据手册

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MIC1700  
HDTV/SDTV 6th Order Video Filter for Component  
Video plus Composite Video  
General Description  
Features  
The MIC1700 is a complete reconstruction filter solution for  
high definition set-top boxes.  
• S-video (Y/C) input, S-video and summed (CV) output  
• 2 YP P or RGB inputs, YP P or RGB output  
R
B
R B  
• YP P /RGB 2-1 input multiplexer  
The device has two independent component inputs (YP P  
R
B
R
B
• DC coupled inputs – AC-coupled output drive  
• 6db output gain for 75source termination  
• Component filters selectable for SD or HD cutoffs  
orRGB)selectableviaa2-to-1multiplexer, andaseparateS-  
video input (Y/C). Component channel filters have a select-  
able cutoff frequency (8MHz or 36MHz) to support both  
standard (SD) and high definition (HD) applications. S-video  
filters have fixed cutoff (8MHz) to support legacy composite  
applications. In addition, S-video channels are summed to  
provide a filtered CV output for an RF modulator or VCR. All  
inputs are DC-coupled with a 0V to 1V peak-to-peak range.  
All outputs are designed to drive 2V peak-to-peak into  
AC-coupled 150loads. This supports 1V peak-to-peak into  
a 75load with a 75series source terminator.  
th  
• 6 order Butterworth characteristic  
• Flat passband (HD 0.5dB @ 30MHz typ)  
• Low group delay distortion (HD: 12ns @ 30MHz typ)  
• Single 5V supply  
• 28-pin wide body SOIC package (with exposed pad for  
improved thermal performance)  
Applications  
• HDTV  
• HDTV set-top boxes  
• Video games  
• HDTV systems  
• DVD players  
th  
Filters have 6 order near Butterworth characteristics with  
cutoffs of 8MHz (SD and CV) and 36MHz (HD). These  
characteristics are chosen to provide good passband flat-  
ness with sufficient stop band attenuation and minimal group  
delay distortion.  
• Digital satellite set-top boxes  
• HDTV monitors  
The device operates from a 5VDC supply.  
Data sheets and support documentation are available at  
Micrel’s web site, www.micrel.com.  
Ordering Information  
Part Number  
Junction Temp. Range  
Package  
MIC1700BWME  
0°C to +70°C  
SOIC-28  
Typical Application  
MIC1700x-x  
1
28  
27  
26  
VCC  
HSEL  
Y1A  
HSEL  
Y1A  
Y1B  
PR1  
PR2  
GND  
PB1  
PB2  
YIN  
VCC  
VCC  
4.7µF  
0.1µF  
2
3
220µF  
75Ω  
Y1B  
Y1OUT  
PROUT  
PBOUT  
Y1OUT  
75Ω  
75Ω  
4
PR1  
220µF  
220µF  
25  
PROUT  
5
PR2  
75Ω  
75Ω  
24  
23  
22  
6
PBOUT  
GND  
75Ω  
7
PB1  
PB2  
220µF  
220µF  
220µF  
75Ω  
8
YOUT  
YOUT  
75Ω  
75Ω  
9
YIN  
CIN  
21  
Composite  
Inputs  
COUT  
COUT  
10  
11  
75Ω  
75Ω  
CIN  
20  
19  
18  
CVOUT  
GND  
CVOUT  
GND  
MUX  
75Ω  
12  
MUX  
VCC  
VCC  
17  
GND  
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com  
October 2003  
1
MIC1700  

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