ADA4420-6ARUZ-RL

Overview

The ADA4420-6ARUZ-RL is a low-cost, six-channel video reconstruction filter designed for consumer electronics. It integrates three independent sixth-order Butterworth filters for standard definition (Y/C or CVBS) and three for high definition component signals (YPrPb or RGB). Operating from a single 5 V supply with a typical quiescent current of 32 mA, the device features rail-to-rail outputs with 6 dB gain and a built-in 250 mV DC offset. The HD channels provide a typical -1 dB bandwidth of 26 MHz and 48 dB rejection at 75 MHz. Each output can drive two 75 Ω doubly terminated cables, eliminating the need for external buffers.

Feature Summary

• Integrates six independent sixth-order Butterworth filters/buffers for simultaneous SD and HD signal processing
• Features transparent sync tip clamp allowing AC coupling without requiring DC restoration
• Includes a disable feature that reduces supply current to less than 8 μA when inactive
• Provides rail-to-rail output drivers with 6 dB gain and a built-in 250 mV DC offset for direct DC coupling

Applications

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

Procurement Notes

Verify the specific package type matches your design requirements, as the ADA4420-6 is available in both 16-lead QSOP and 20-lead TSSOP configurations. Confirm that the ordering suffix corresponds to the desired reel quantity and RoHS compliance status. Ensure the operating temperature range meets your application's environmental specifications before finalizing procurement.

Selection Notes

Select this component when a compact solution for multi-channel video filtering is required. It is suitable for designs needing separate filtering paths for SD and HD signals within a single IC. Consider the power consumption constraints, as the active current is 32 mA but drops significantly in disabled mode. Verify that the input voltage range and output drive capabilities align with your encoder or DAC specifications.

Part Context

This part belongs to Analog Devices' line of video reconstruction filters. It is specifically engineered for consumer applications where space and power efficiency are critical. The device simplifies board layout by integrating multiple filter stages and buffer amplifiers, reducing the component count compared to discrete solutions. It supports both AC and DC coupling options for flexible system integration.

Replacement Considerations

Consult the manufacturer's documentation for comparable parts. No specific substitute part numbers are confirmed in the provided source material.