ADA4431-1YCPZ-R7

Overview

The ADA4431-1YCPZ-R7 is a third-order, low-pass video filter with load detection. It operates on a single supply voltage ranging from 2.5 V to 3.6 V. The device features a typical quiescent current of 4.7 mA in normal mode and 24 µA in disabled mode. It provides a -3 dB bandwidth between 6.6 MHz and 9.1 MHz and achieves 27 dB rejection at 27 MHz. The component includes an onboard charge pump for virtual negative supply generation and SAG correction. It is housed in a 16-lead LFCSP package measuring 3 mm × 3 mm with a height of 0.55 mm.

Feature Summary

• Integrates a third-order low-pass video filter with built-in load detection capability that powers down the device when no video load is present.
• Includes an onboard charge pump that creates a virtual negative supply, enabling DC-coupled outputs without DC offset.
• Features SAG correction functionality that allows the use of smaller capacitors in AC-coupled output applications.
• Provides high input-to-output isolation in the disabled state and rail-to-rail output drive capability.

Applications

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

Procurement Notes

Verify the specific ordering suffix matches the required packaging quantity. Confirm RoHS compliance status as indicated by the Z suffix. Ensure the temperature range aligns with system requirements. Check for moisture sensitivity classification prior to soldering. Validate pin configuration against the target PCB footprint design.

Selection Notes

Select this component for portable video systems requiring low power consumption and small form factor. Consider the onboard charge pump if DC coupling is necessary. Evaluate the load detection feature for battery-powered devices needing automatic power management. Verify that the supply voltage range meets the system's power architecture constraints.

Part Context

This part belongs to the ADA4431-1 series of ultralow power SD video filters. It is designed for portable applications where power efficiency and size are critical. The device integrates filtering, buffering, and power management features into a single compact package.

Replacement Considerations

ADA4431-1YCPZ-R2

FAQ

How does the load detection feature function?

The device monitors the output load current. If no video load or a short circuit is detected, it enters a low power state drawing 0.1 mA. It automatically powers up when a valid video load is connected.

What is the purpose of the SAG correction pin?

SAG correction allows the use of smaller capacitors in AC-coupled output applications by compensating for signal sag, providing a low-frequency gain of approximately 8 dB.