Datasheet > ADA4420-6ARQZ-R71

ADA4420-6ARQZ-R71

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	280K
描述
Low Cost 6-Channel HD/SD Video Filter

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Low Cost 6-Channel HD/SD Video Filter

ADA4420-6

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Sixth-order filters

INSD1

INSD2

INSD3

OUTSD1

OUTSD2

OUTSD3

×1

×2

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

CLAMP

DIS

INHD1

OUTHD1

OUTHD2

OUTHD3

APPLICATIONS

Set-top boxes

DVD players and recorders

HDTVs

Projectors

Personal video recorders

INHD2

INHD3

ADA4420-6

GENERAL DESCRIPTION

Figure 1.

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 (YPbPr or RGB).

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 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.

The ADA4420-6 is available in a 16-lead QSOP and operates in

the extended industrial temperature range of −40°C to +85°C.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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