ADA4431-1YCPZ-R2

Overview

The ADA4431-1YCPZ-R2 is a fully integrated third-order low-pass video filter and driver 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. The device features an internal charge pump that creates a virtual negative supply, enabling DC-coupled outputs without external coupling capacitors. Key electrical specifications include a -3 dB bandwidth between 6.6 MHz and 9.1 MHz, 89 dB input-to-output isolation when disabled, and SAG correction capability. It is housed in a 16-lead LFCSP package measuring 3 mm × 3 mm.

Feature Summary

• Integrates a third-order low-pass reconstruction filter with rail-to-rail output buffering.
• Includes an onboard charge pump to generate a virtual negative supply for DC-coupled operation.
• Features autonomous load detection to monitor video load presence and manage power states.
• Provides SAG correction functionality to allow the use of smaller capacitors in AC-coupled configurations.

Applications

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

Procurement Notes

Verify the specific ordering suffix R2 corresponds to the required packaging quantity of 250 units per reel. Confirm RoHS compliance status as indicated by the Z suffix in the part number. Ensure the operating temperature range of −40°C to +85°C aligns with the target application environment requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring low-power video filtering in space-constrained portable devices. The integrated charge pump simplifies circuit design by eliminating the need for external negative voltage generation. Consider the load detection feature if system-level power management based on peripheral connection status is required. Verify that the 3 mm × 3 mm package dimensions fit within the available PCB real estate constraints.

Part Context

This component belongs to the ADA4431-1 series of ultralow power SD video filters manufactured by Analog Devices. The YCPZ variant denotes the specific lead-free and RoHS-compliant version packaged in the CP-16-12 option. The series is engineered to balance high-performance video signal reconstruction with minimal power consumption suitable for battery-operated electronics.

Replacement Considerations

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

FAQ

How does the device handle power consumption when no video load is detected?

When no video load or a short circuit is detected, the ADA4431-1 enters a Load Searching Mode, drawing only 0.1 mA. If the disable pin is driven low, it enters Disabled Mode with a typical current of 24 µA.

What is the function of the SAG feedback pin?

The SAG feedback pin enables SAG correction, which allows the use of smaller capacitors in AC-coupled output applications by compensating for signal sag at lower frequencies.