ADA4412-3ARQZ Analog Devices Inc, ADA4412-3ARQZ Datasheet

IC FILTER VID RGB/HD/SD 20-QSOP

ADA4412-3ARQZ

Manufacturer Part Number
ADA4412-3ARQZ
Description
IC FILTER VID RGB/HD/SD 20-QSOP
Manufacturer
Analog Devices Inc
Type
Video Filterr
Datasheet

Specifications of ADA4412-3ARQZ

Applications
Set-Top Boxes, Video Players
Mounting Type
Surface Mount
Package / Case
20-QSOP
Video Signal Filter
RGB, SD, Y/C, Y Pb Pr, YUV
Frequency
36MHz
Bandwidth
37MHz
Attenuation
40dB
Filter Order
Sixth
Supply Voltage Range
4.5V To 12V
Tv / Video Case Style
QSOP
No. Of Pins
20
Ic Filter Type
Butterworth
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADA4412-3ARQZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
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
DC output offset adjust: ±0.5 V, input referred
Fixed throughput gain of ×2
Excellent video specifications
Wide supply range: +4.5 V to ±5 V
Rail-to-rail output
Small packaging: 20-lead QSOP
APPLICATIONS
Set-top boxes
DVD players and recorders
Personal video recorders
HDTVs
Projectors
GENERAL DESCRIPTION
The ADA4412-3 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 ADA4412-3 has a rail-to-
rail output that can swing 4.5 V p-p on a single 5 V supply.
The ADA4412-3 includes an output offset voltage adjustment
feature. 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.
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 31.5 MHz for HD
Only 265 mW for 3 channels on 5 V supply
Disable feature cuts supply current to 10 μA
Output can swing 4.5 V p-p on single 5 V supply
Integrated Triple Video Filter with Selectable
Cutoff Frequencies for RGB, HD/SD
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ADA4412-3 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 10 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 ADA4412-3 is available in a 20-lead QSOP and is rated for
operation over the extended industrial temperature range of
−40°C to +85°C.
CUTOFF SELECT
DISABLE
LEVEL1
LEVEL2
Pb/B IN
Pr/R IN
Y/G IN
FUNCTIONAL BLOCK DIAGRAM
2
DC
OFFSET
×1
×1
×1
© 2005 Analog Devices, Inc. All rights reserved.
Figure 1.
36MHz, 18MHz, 9MHz
36MHz, 18MHz, 9MHz
36MHz, 18MHz, 9MHz
ADA4412-3
ADA4412-3
www.analog.com
×2
×2
×2
Y/G OUT
Pb/B OUT
Pr/R OUT

Related parts for ADA4412-3ARQZ

ADA4412-3ARQZ Summary of contents

Page 1

... The output buffers have the ability to drive two 75 Ω doubly terminated cables that are either dc-coupled or ac-coupled. The ADA4412-3 is available in a 20-lead QSOP and is rated for operation over the extended industrial temperature range of −40°C to +85°C. ...

Page 2

... ADA4412-3 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution.................................................................................. 5 Pin Configuration And Function Descriptions............................ 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ........................................................................ 9 REVISION HISTORY 7/05—Revision 0: Initial Version Applications..................................................................................... 10 Overview ..................................................................................... 10 Disable ......................................................................................... 10 Cutoff Frequency Selection....................................................... 10 Output DC Offset Control ...

Page 3

... MHz MHz MHz C Cutoff frequency select = 36 MHz Cutoff frequency select = 18 MHz Cutoff frequency select = 9 MHz NTSC MHz C NTSC MHz MHz All channels All channels Rev Page ADA4412-3 Min Typ Max Unit ±500 mV V − 0.1 V − 2.0 V S− − 0.30 V − ...

Page 4

... ADA4412 ± 25° 1 Table 2. Parameter OVERALL PERFORMANCE Offset Error Offset Adjust Range Input Voltage Range, All Inputs Output Voltage Swing, All Outputs Linear Output Current per Channel Integrated Voltage Noise, Referred to Input Filter Input Bias Current Total Harmonic Distortion at 1 MHz ...

Page 5

... Package Type θ JA 20-Lead QSOP 83 Maximum Power Dissipation The maximum safe power dissipation in the ADA4412-3 package is limited by the associated rise in junction temperature ( the die. At approximately 150°C, which is the glass J transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting the parametric performance of the ADA4412-3 ...

Page 6

... Pr/R_OUT 15 VEE 16 Pb/B_OUT 17 VEE 18 Y/G_OUT 19 VCC 20 LEVEL2 LEVEL1 LEVEL2 1 20 DISABLE VCC Y/G_OUT GND 4 17 VEE ADA4412-3 Pb/B Pb/B_OUT 5 16 TOP VIEW (Not to Scale) GND 15 VEE 6 Pr Pr/R_OUT F_SEL_A VCC 8 13 F_SEL_B GND 11 DGND CONNECT Figure 3. 20-Lead QSOP Pin Configuration ...

Page 7

... FREQUENCY (MHz) 100 BLACK LINE: V GRAY LINE 9MHz 18MHz 36MHz FREQUENCY (MHz) –40 = 300 Ω R SOURCE Y AND Pr SOURCE CHANNELS Pb RECEPTOR CHANNEL –50 – 9MHz C – 18MHz C – 36MHz C –90 0 FREQUENCY (MHz) ADA4412-3 100 = + ±5V S 100 100 ...

Page 8

... ADA4412-3 5 –5 –15 –25 – 9MHz – 36MHz C –55 –65 –75 0 FREQUENCY (MHz) Figure 10. Positive Supply PSRR vs. Frequency and Cutoff Frequency 3.5 2 × OUTPUT INPUT 3.3 3.1 2.9 0.5% (70ns) 2.7 ERROR 2.5 2.3 2.1 1.9 1% (58ns) 1.7 1.5 Figure 11. Settling Time 3 ...

Page 9

... The group delay variation from 1 MHz to 36 MHz in the 36 MHz section is 7 ns, which produces a fast settling pulse response. The ADA4412-3 is designed to operate in many video environ- ments. The supply range single supply or dual supply, and requires a relatively low nominal quiescent current per channel. In single-supply applications, the PSRR is greater than 60 dB, providing excellent rejection in systems with supplies that are noisy or under-regulated ...

Page 10

... For example, setting LEVEL1 to 300 mV and LEVEL2 shifts the offset voltages at the ADA4412-3 outputs to 600 mV. This particular setting can be used in most single-supply applications to keep the output swings safely above the negative supply rail ...

Page 11

... VIDEO ENCODER RECONSTRUCTION FILTER The ADA4412-3 is easily applied as a reconstruction filter at the DAC outputs of a video encoder. Figure 20 illustrates how to use the ADA4412-3 in this type of application with an ADV7322 video encoder in a single-supply application with ac-coupled outputs. Rev Page ADA4412-3 75Ω ...

Page 12

... ADA4412-3 ADV7322 VIDEO ENCODER VIDEO DAC OUTPUTS Figure 20. The ADA4412-3 Applied as a Single-Supply Reconstruction Filter Following the ADV7322 0.1μF DNP 10kΩ 0.1μF 0Ω 634Ω 1 LEVEL1 20 LEVEL2 0.1μF 2 DISABLE 8 CUTOFF F_SEL_A FREQUENCY 9 SELECT F_SEL_B INPUT 3 Y Pb/B ...

Page 13

... OUTLINE DIMENSIONS PIN 1 0.010 0.004 COPLANARITY 0.004 ORDERING GUIDE Model Temperature Range 1 ADA4412-3ARQZ –40°C to +85°C 1 ADA4412-3ARQZ-R7 –40°C to +85°C 1 ADA4412-3ARQZ-RL –40°C to +85° Pb-free part. 0.341 BSC 20 11 0.154 BSC 0.236 1 BSC 10 0.065 0.069 0.049 0.053 0.025 ...

Page 14

... ADA4412-3 NOTES Rev Page ...

Page 15

... NOTES Rev Page ADA4412-3 ...

Page 16

... ADA4412-3 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05528–0–7/05(0) Rev Page ...

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