ADA4411-3 Analog Devices, ADA4411-3 Datasheet

ADA4411-3

Manufacturer Part Number

ADA4411-3

Description

Manufacturer

Analog Devices

Datasheet

1.ADA4411-3.pdf (16 pages)

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FEATURES

Sixth-order adjustable video filters

Many video standards supported: RGB, YPbPr, YUV, SD, Y/C

Ideal for 720p and 1080i resolutions

Low quiescent power

2:1 mux on all inputs

Variable gain: ×2 or ×4

DC output offset adjust: ±0.5 V, input referred

Excellent video specifications

Wide supply range: +4.5 V to ±5 V

Rail-to-rail output

Small packaging: 24-lead QSOP

APPLICATIONS

Set-top boxes

Personal video recorders

DVD players and recorders

HDTVs

Projectors

GENERAL DESCRIPTION

The ADA4411-3 is a comprehensive filtering solution designed

to give designers the flexibility to easily filter and drive various

video signals, including high definition video. Cutoff frequen-

cies of the sixth-order video filters range from 9 MHz to

36 MHz and can be selected by two logic pins to obtain four

filter combinations that are tuned for RGB, high definition, and

standard definition video signals. The ADA4411-3 has a rail-

to-rail output that can swing 4.5 V p-p on a single 5 V supply.

The ADA4411-3 offers gain and voltage offset adjustments.

With a single logic pin, the throughput filter gain can be

selected to be ×2 or ×4. Output voltage offset is continuously

adjustable over an input-referred range of ±500 mV by applying

a differential voltage to an independent offset control input.

The ADA4411-3 offers 2:1 multiplexers on all of its video

inputs, which are useful in applications where filtering is

required for multiple sources of video signals.

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 registered trademarks are the property of their respective owners.

36 MHz, 18 MHz, and 9 MHz

−1 dB bandwidth of 30.5 MHz for HD

Only 265 mW for 3 channels on 5 V supply

Disable feature cuts supply current to 15 μA

Output can swing 4.5 V p-p on single 5 V supply

Cutoff Frequencies and Multiplexed Inputs for RGB, HD/SD

Integrated Triple Video Filter and Buffer with Selectable

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

Tel: 781.329.4700

Fax: 781.461.3113

CUTOFF SELECT

The ADA4411-3 can operate on a single +5 V supply as well as

on ±5 V supplies. Single-supply operation is ideal in

applications where power consumption is critical. The disable

feature allows for further power conservation by reducing the

supply current to typically 15 μA when a particular device is not

in use.

Dual-supply operation is best for applications where the

negative-going video signal excursions must swing at or

below ground while maintaining excellent video performance.

The output buffers have the ability to drive two 75 Ω doubly

terminated cables that are either dc-coupled or ac-coupled.

The ADA4411-3 is available in the 24-lead, wide body

QSOP and is rated for operation over the extended

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

INPUT SELECT

GAIN SELECT

Pb1/B1 IN

Pb2/B2 IN

Pr1/R1 IN

Pr2/R2 IN

DISABLE

Y1/G1 IN

Y2/G2 IN

LEVEL1

LEVEL2

FUNCTIONAL BLOCK DIAGRAM

OFFSET

Figure 1.

36MHz, 18MHz, 9MHz

ADA4411-3

www.analog.com

×2

×4

×2

×4

×2

×4

Y/G OUT

Pb/B OUT

Pr/R OUT

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