参数资料
型号: ADA4420-6ARQZ-RL
厂商: Analog Devices Inc
文件页数: 1/16页
文件大小: 0K
描述: IC FILTER VIDEO 6CH HD/SD 16QSOP
标准包装: 2,500
类型: 视频滤波器
应用: DVD,HD,机顶盒,录音机
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 带卷 (TR)
Low Cost 6-Channel HD/SD Video Filter
ADA4420-6
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2008–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Sixth-order filters
Transparent input sync tip clamp
1 dB bandwidth of 26 MHz typical for HD
HD rejection @ 75 MHz: 48 dB typical
NTSC differential gain: 0.19%
NTSC differential phase: 0.76°
Rail-to-rail outputs
Low quiescent current: 32 mA typical
Disable feature
Output dc offset
APPLICATIONS
Set-top boxes
DVD players and recorders
HDTVs
Projectors
Personal video recorders
FUNCTIONAL BLOCK DIAGRAM
SD
OUTHD1
OUTHD2
OUTHD3
×2
HD
OUTSD1
OUTSD2
OUTSD3
INHD1
INHD2
INHD3
INSD1
INSD2
INSD3
DIS
CLAMP
×2
×1
CLAMP
07
53
2-
0
01
ADA4420-6
Figure 1.
GENERAL DESCRIPTION
The ADA4420-6 is a low cost video reconstruction filter specifically
designed for consumer applications. It consists of six independent
sixth-order Butterworth filters/buffers, three for standard
definition (Y/C or CVBS) and three for high definition
component signals (YPrPb or RGB).
The ADA4420-6 operates from a single 5 V supply and has a
low quiescent current of 32 mA, making it ideal for applications
where power consumption is critical. A disable feature allows
for further power conservation by reducing the supply current
to less than 8 μA typical when the device is not in use.
Each channel features a transparent sync tip clamp, allowing ac
coupling of the inputs without requiring dc restoration.
The output drivers on the ADA4420-6 have rail-to-rail output
capabilities with 6 dB gain. A built-in offset of 250 mV allows
the outputs to be dc-coupled, eliminating the need for large
coupling capacitors. Each output is capable of driving two 75 Ω
doubly terminated cables.
The ADA4420-6 is available in either a 16-lead QSOP or a 20-lead
TSSOP, and operates in the extended industrial temperature
range of 40°C to +85°C.
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