82V2058LDAG

Overview

The 82V2058LDAG is an octal E1 short haul Line Interface Unit (LIU) manufactured by Renesas Electronics. It integrates adaptive equalization, clock and data recovery, line decoding/encoding, and a jitter attenuator. The device operates at the standard E1 line rate of 2.048 Mbps. It supports hitless protection and host modes for enhanced network reliability. The component is housed in a 144-pin TQFP package with dimensions of 20x20 mm. It functions within a supply voltage range of 3.13 V to 3.47 V, typically using 3.3 V, and draws a maximum operating current of 55 mA. The operational temperature range spans from -40°C to +85°C.

Feature Summary

• Integrates adaptive equalizer and jitter attenuator for signal integrity
• Performs clock and data recovery alongside line encoding and decoding
• Supports hitless protection mechanisms for continuous operation
• Enables host mode functionality for system integration

Applications

• Local Area Network (LAN) infrastructure
• Wide Area Network (WAN) equipment
• Network routers and gateways
• Wireless base station systems

Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm package type matches the 144-TQFP specification. Check datasheet revisions for any functional updates. Ensure environmental compliance documentation aligns with project requirements. Validate thermal performance within the specified operating temperature range during system design.

Selection Notes

Select this LIU for applications requiring eight-channel E1 connectivity with integrated signal conditioning. Consider the TQFP-144 package for surface-mount assembly constraints. Evaluate power consumption against available supply capabilities, noting the 55 mA typical draw. Assess thermal management needs for the -40°C to +85°C operating range. Verify compatibility with existing host protocols supporting hitless protection features.

Part Context

This component belongs to the 82V2048/82V2058 family of telecom interface ICs designed for T1/E1/J1 short haul applications. It serves as a critical interface between digital cross-connect systems and transmission lines. The series emphasizes high channel density and integrated signal processing to reduce external component count. It complements other interface solutions by providing robust line coding and timing recovery capabilities.

Replacement Considerations

The 82V2048DAG is a documented substitute part number within the same product family. Both devices serve as octal T1/E1 LIUs. Verify pinout compatibility and electrical specifications before substitution. Confirm that the alternative package type meets mechanical constraints. Review manufacturer discontinuation notices for availability status.