AD8120ACPZ-RL

Overview

The AD8120ACPZ-RL is a triple skew-compensating video delay line designed to correct time mismatches in unshielded twisted pair cables. It provides up to 50 ns of adjustable delay per channel with 0.8 ns resolution across 64 digital steps or via analog voltage control. The device operates on ±5 V supplies, drawing 44 mA at zero delay and 114 mA at maximum delay. It features a fixed gain of 2, a 200 MHz bandwidth at zero delay, and supports both SPI and I2C digital interfaces alongside independent analog controls for Red, Green, and Blue channels.

Feature Summary

• Corrects cable skew between RGB signals using triple broadband delay paths
• Offers independent delay control via SPI, I2C, or analog voltages
• Maintains excellent channel-to-channel matching for offset and gain
• Drives multiple double-terminated video loads without external circuitry

Applications

• RGB video transmission over Category 5 and Category 6 UTP cables
• Keyboard-video-mouse (KVM) systems requiring signal alignment
• Professional video projection and distribution networks
• Digital signage and security video infrastructure

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when sourcing. Confirm the LFCSP-32 package dimensions match your PCB footprint requirements. Ensure power supply rails are strictly maintained within the ±4.5 V to ±5.5 V range to prevent damage. Check for moisture sensitivity handling requirements during storage and assembly processes.

Selection Notes

Select this component when precise relative delay adjustment is required for RGB signals transmitted over twisted pair media. It is suitable for applications needing independent channel control to eliminate color misalignment artifacts. Consider the thermal dissipation capabilities if operating near the upper temperature limits or driving heavy loads.

Part Context

This part belongs to Analog Devices' video IC family focused on signal integrity and timing correction. It complements equalizers like the AD8123 in complete transmission solutions. The device addresses specific challenges in high-resolution video distribution where cable-induced skew degrades image quality.

Replacement Considerations

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