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MIC1700 Datasheet(PDF) 1 Page - Micrel Semiconductor

Part No. MIC1700
Description  HD TV / SD TV 6 TH ORDER VIDEO FILTER FOR COMPONENT
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC1700 Datasheet(HTML) 1 Page - Micrel Semiconductor

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October 2003
1
MIC1700
MIC1700
Micrel
MIC1700
HDTV/SDTV 6th Order Video Filter for Component
Video plus Composite Video
General Description
The MIC1700 is a complete reconstruction filter solution for
high definition set-top boxes.
The device has two independent component inputs (YPRPB
or RGB) selectable via a 2-to-1 multiplexer, and a separate S-
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 150Ω loads. This supports 1V peak-to-peak into
a 75Ω load with a 75Ω series source terminator.
Filters have 6th 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.
The device operates from a 5VDC supply.
Data sheets and support documentation are available at
Micrel’s web site, www.micrel.com.
Typical Application
17
12
18
11
128
27
26
25
24
23
22
21
20
19
2
3
4
5
6
7
8
9
10
4.7
µF0.1µF
75
75
220
µF
Y1OUT
PROUT
PBOUT
YOUT
COUT
CVOUT
VCC
VCC
MIC1700x-x
MUX
GND
HSEL
Y1A
Y1B
PR1
PR2
GND
PB1
PB2
YIN
CIN
GND
VCC
VCC
VCC
Y1OUT
PROUT
PBOUT
GND
YOUT
COUT
CVOUT
GND
75
75
75
75
75
MUX
HSEL
Y1A
Y1B
YIN
Composite
Inputs
CIN
PR1
PR2
PB1
PB2
220
µF
220
µF
220
µF
220
µF
220
µF
75
75
75
75
75
Features
• S-video (Y/C) input, S-video and summed (CV) output
•2 YPRPB or RGB inputs, YPRPB or RGB output
•YPRPB/RGB 2-1 input multiplexer
• DC coupled inputs – AC-coupled output drive
• 6db output gain for 75Ω source termination
• Component filters selectable for SD or HD cutoffs
•6th 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
• Digital satellite set-top boxes
• HDTV monitors
Ordering Information
Part Number
Junction Temp. Range
Package
MIC1700BWME
0°C to +70°C
SOIC-28
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com


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