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參數資料
| 型號： | MIC1700BWME |
| 廠商： | MICREL INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | HD TV / SD TV 6 TH ORDER VIDEO FILTER FOR COMPONENT |
| 中文描述： | 5 CONTINUOUS TIME FILTER, BUTTERWORTH, LOWPASS, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 132K |
| 代理商： | MIC1700BWME |
October 2003
1
MIC1700
MIC1700
Micrel
MIC1700
HDTV/SDTV 6
th
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 (YP
R
P
B
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 150
loads. This supports 1V peak-to-peak into
a 75
load with a 75
series source terminator.
Filters have 6
th
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
1
28
27
26
25
24
23
22
21
20
19
2
3
4
5
6
7
8
9
10
4.7
μ
F
0.1
μ
F
75
75
220
μ
F
Y1OUT
PROUT
PBOUT
YOUT
COUT
CVOUT
V
CC
V
CC
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
μ
F
220
μ
F
220
μ
F
220
μ
F
220
μ
F
75
75
75
75
75
Features
S-video (Y/C) input, S-video and summed (CV) output
2 YP
R
P
B
or RGB inputs, YP
R
P
B
or RGB output
YP
R
P
B
/RGB 2-1 input multiplexer
DC coupled inputs – AC-coupled output drive
6db output gain for 75
source termination
Component filters selectable for SD or HD cutoffs
6
th
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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