ADA4411-3ARQZ-RL

Overview

The ADA4411-3ARQZ-RL is an integrated triple video filter and buffer designed for RGB, HD/SD, YPbPr, and YUV signals. It features sixth-order adjustable filters with selectable cutoff frequencies of 36 MHz, 18 MHz, or 9 MHz via logic pins. The device supports a wide supply range from +4.5 V to ±5 V, offering rail-to-rail outputs capable of swinging 4.5 V p-p on a single 5 V supply. Each channel includes a 2:1 input multiplexer, variable gain selection (×2 or ×4), and DC offset adjustment of ±0.5 V. Quiescent power consumption is typically 265 mW for all three channels on a 5 V supply, reducing to 15 μA in disable mode.

Feature Summary

• Integrates three independent sixth-order Butterworth video filters with optimized group delay for high-fidelity signal processing.
• Features dual-input multiplexers on all channels to facilitate seamless switching between multiple video sources.
• Provides flexible power management through a dedicated disable pin that significantly reduces current draw when inactive.
• Supports both single-supply (+5 V) and dual-supply (±5 V) operation with rail-to-rail output buffering capabilities.

Applications

• Set-top boxes
• Personal video recorders
• DVD players and recorders
• HDTVs
• Projectors

Procurement Notes

Verify the specific ordering suffix matches the required reel quantity and packaging configuration. Confirm that the component meets RoHS compliance standards for your region. Ensure the supply voltage requirements align with your system design before integration. Check for any lead-free soldering specifications if applicable to your manufacturing process.

Selection Notes

Select this component when designing systems requiring simultaneous filtering and driving of multiple video channels. Consider the available cutoff frequency combinations to match specific video standards like NTSC or HD resolutions. Evaluate the power supply constraints to determine if single or dual supply operation is more suitable for the application's noise and performance requirements.

Part Context

This part belongs to Analog Devices' family of integrated video filters and buffers. It is specifically engineered to handle high-definition and standard definition video signals within a compact 24-lead QSOP package. The device simplifies board layout by combining filtering, buffering, and multiplexing functions into a single solution.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Ensure any replacement maintains compatible pin configurations and electrical specifications.

FAQ

How are the filter cutoff frequencies selected?

The cutoff frequencies are selected using two logic inputs, F_SEL_A and F_SEL_B, which allow for four different combinations of 36 MHz, 18 MHz, and 9 MHz settings.

What is the function of the LEVEL1 and LEVEL2 pins?

These pins provide differential DC offset control, allowing the user to adjust the output voltage level by up to ±500 mV to accommodate single-supply applications.

Can the device drive multiple loads simultaneously?

Yes, each output buffer can drive two 75 Ω doubly terminated cables, either DC-coupled or AC-coupled, without requiring additional external buffering.