82V2058BB8

Overview

The 82V2058BB8 is an octal E1 short haul Line Interface Unit (LIU) manufactured by Renesas Electronics. It integrates eight independent LIU channels within a single package, designed for high-density telecommunications applications. The device incorporates adaptive equalization, clock and data recovery (CDR), line decoding/encoding, and jitter attenuation functions. It operates on a 3.3V power supply and supports the E1 standard for short-haul transmission environments.

Feature Summary

• Integrates eight independent E1 line interface unit channels in a compact package
• Includes built-in adaptive equalizer for signal integrity optimization
• Performs clock and data recovery alongside line encoding and decoding
• Features integrated jitter attenuator to enhance signal quality

Applications

• Local Area Network (LAN) infrastructure equipment
• Wide Area Network (WAN) routing devices
• Wireless base station connectivity modules
• Telecommunications gateways

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm moisture sensitivity level handling requirements during storage and assembly. Ensure compliance with RoHS directives and check for specific end-of-life notifications or process change notices that may affect long-term supply stability.

Selection Notes

Select this component for designs requiring multiple E1 interfaces in a space-constrained environment. Compare channel density against alternative octal LIUs if pin compatibility differs. Validate that the integrated jitter attenuation meets system timing specifications without external components. Ensure the 3.3V operating voltage aligns with the target board power distribution network.

Part Context

This part belongs to the 82V2058 series of telecom interface ICs from Renesas. It serves as a specialized solution for E1 short-haul applications, distinct from T1 variants like the 82V2048. The BB8 suffix typically denotes a specific package configuration, often associated with BGA formats, differentiating it from other package options like DAG or PBGA available in the same family.

Replacement Considerations

Direct replacements include other parts within the 82V2058 family such as the 82V2058DAG or 82V2058BBG, provided pinouts are compatible. Verify functional equivalence regarding E1 short-haul capabilities and integrated features before substitution.