參數(shù)資料
型號: FMS6400-1
廠商: Fairchild Semiconductor Corporation
英文描述: Dual Channel Video Drivers with Integrated Filters and Composite Video Summer
中文描述: 雙通道視頻驅(qū)動器,集成濾波器和復(fù)合視頻夏
文件頁數(shù): 1/8頁
文件大小: 82K
代理商: FMS6400-1
2004 Fairchild Semiconductor Corporation
FMS6400-1 Rev. 1A
1
www.fairchildsemi.com
June 2005
F
FMS6400-1
Dual Channel Video Drivers with Integrated Filters and
Composite Video Summer
Features
5.0 MHz 5th order Y,C filters with composite summer
Selectable for 0dB or 6dB gain
50dB stopband attenuation at 27MHz on Y, C and CV outputs
No external frequency selection components or clocks
AC-Coupled Inputs
AC or DC-Coupled Outputs
Continuous time low pass filters
0.4% / 0.4° differential gain/phase on Y,C and CV channels
Integrated DC restore circuitry with low tilt
Lead (Pb) Free SOIC-8 Package
Applications
Cable and Satellite set top boxes
DVD players
Personal Video Recorders (PVR)
Video On Demand (VOD)
Description
The FMS6400-1 is a dual Y/C 5th order Butterworth lowpass
video filter optimized for minimum overshoot and flat group
delay. The device also contains a summing circuit to generate
filtered composite video. In a typical application, the Y and C
input signals from DACs are AC coupled into the filters. Both
channels have DC restore circuitry to clamp the DC input levels
during video sync. The Y and C channels use separate feed-
back clamps. The clamp pulse is derived from the Y channel.
All outputs are capable of driving 2V
pp
, AC or DC coupled, into
either a single or dual video load. A single video load consists of
a series 75
impedance matching resistor connected to a ter-
minated 75
line. This presents a total of 150
of loading to the
part. A dual load would be two of these in parallel which would
present a total of 75
to the part. The gain of the Y, C and CV
signals can be selected for 0dB or 6dB with 1V
pp
input levels. All
video channels are clamped during sync to establish the appro-
priate output voltage reference levels.
Block Diagrams
S
gM
Sync Strip
Reference and
Timing
250mV
1
gM
+
+
250mV
4
8
6
5
2
7
VCC
YIN
CIN
ASEL
COUT
CVOUT
YOUT
0 or
6dB
3
GND
0 or
6dB
相關(guān)PDF資料
PDF描述
FMS6400 Dual Channel Video Drivers with Integrated Filters and Composite Video Summer
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FMS6400CSX Dual Channel Video Drivers with Integrated Filters and Composite Video Summer
FMS6400CS1X Dual Channel Video Drivers with Integrated Filters and Composite Video Summer
FMS6400CS1 Dual Channel Video Drivers with Integrated Filters and Composite Video Summer
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FMS6400CSX 功能描述:視頻 IC Dual Chan’l VidDrvr 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