ADA4431-1YCPZ-RL

Overview

The ADA4431-1YCPZ-RL is a fully integrated third-order low-pass video reconstruction filter designed for portable applications. It operates on a single supply voltage ranging from 2.5 V to 3.6 V with a typical quiescent current of 4.7 mA in normal mode and 24 µA in disabled mode. The device features an internal charge pump that creates a virtual negative supply, enabling DC-coupled outputs without external coupling capacitors. It includes load detection capability to minimize power consumption when no video load is present and offers SAG correction to allow the use of smaller capacitors in AC-coupled configurations.

Feature Summary

• Integrates a third-order low-pass video filter with rail-to-rail output drive capabilities.
• Includes an onboard charge pump to generate a virtual negative supply for DC-coupled operation.
• Features autonomous load detection to enter low-power standby mode when the video load is disconnected.
• Provides SAG correction functionality to support AC-coupled outputs using reduced capacitor values.

Applications

• Portable media players
• Cell phones
• Digital still cameras
• Portable DVD players

Procurement Notes

Verify the specific ordering suffix (R7 or RL) against the required reel quantity, as the datasheet lists distinct quantities for each variant. Confirm RoHS compliance status indicated by the Z suffix. Ensure the LFCSP-UQ package dimensions align with the PCB footprint requirements. Check for any recent revision history updates regarding electrical specifications before finalizing the design.

Selection Notes

Select this component for designs requiring high isolation in the disabled state and minimal power consumption in battery-operated devices. The integrated charge pump simplifies circuitry by eliminating the need for external negative voltage generation. Consider the SAG correction feature if space constraints limit the size of output coupling capacitors in AC-coupled applications.

Part Context

This part belongs to Analog Devices' line of ultralow power SD video filters. It is specifically engineered to combine excellent video filtering performance with low power consumption, making it suitable for space-constrained portable electronics. The device integrates multiple functions typically requiring discrete components into a single small package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.