ADA4431-1

PRODUCTION

ADA4431-1

Ultralow Power SD Video Filter with Load Detection

PRODUCTION

Part Details

ADA4431-1 Functional Block Diagram slide

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Features

Third-order, low-pass video filter
1 dB flatness out to 6 MHz
27 dB rejection at 27 MHz
Low quiescent current:
4.7 mA typical
Low power-down current:
24 μA typical
Load detection capability
SAG correction
Allows use of smaller capacitors in ac-coupled outputs
Low supply voltage: 2.5 V to 3.6 V

Charge pump
Creates a negative voltage from single positive supply
Allows capless output coupling with no dc offset
Rail-to-rail output
High input-to-output isolation in
disabled state 89 dB @ 1 MHz
Small package
3 mm × 3 mm LFCSP
Low 0.55 mm package height
Wide operating temperature range:
−40°C to +85°C

Additional Details

The ADA4431-1 is a fully integrated video reconstruction filter that combines excellent video specifications with low power consumption, making it ideal for portable video filtering applications. The ADA4431-1 is able to detect whether a video load is present at the output, powering down the device when the load is disconnected.

The ADA4431-1 operates on single supplies as low as 2.5 V while providing the dynamic range required by the most demanding video systems. The on-board charge pump provides a virtual negative supply, allowing the video signal to be dc-coupled and the black level to be set to ground, while the sync passes cleanly at 300 mV below ground.

When operating with the charge pump off, the ADA4431-1 provides a dc offset to keep the sync tip approximately 100 mV above ground. In addition, the part features SAG correction, which permits the use of smaller capacitors in applications with ac-coupled outputs.

The ADA4431-1 is packaged in a low profile 16-lead LFCSP and operates in the industrial temperature range of −40°C to +85°C.

APPLICATIONS

Portable media players
Portable gaming consoles
Cell phones
Digital still cameras
Portable DVD players
Portable video cameras

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Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 1

1ku List Price Starting From $0.79

Documentation

Technical Documents 1

ADA4431-1: Ultralow Power SD Video Filter with Load Detection Data Sheet (Rev.A) 11/09/2015

Reference Materials 2

What's Your Amplifier's Febricity Due to Electricity? 12/01/2007

What’s in Your Toolbox? 01/01/2009

Design Resources 1

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.