82V2084PFG

Overview

The 82V2084PFG is a quad Line Interface Unit (LIU) designed for telecommunications applications, manufactured by Renesas Electronics Corporation. It supports T1, E1, and J1 line rates with integrated adaptive equalization, clock data recovery, and jitter attenuation. The device operates within a supply voltage range of 3.13 V to 3.47 V and functions reliably across an operating temperature range of -40°C to +85°C. It is housed in a 128-pin Thin Quad Flat Package (TQFP) with dimensions of 20 mm length, 14 mm width, and 1.4 mm height, suitable for surface mount technology.

Feature Summary

• Integrates four independent LIU channels for simultaneous T1/E1/J1 interface support
• Includes built-in adaptive equalizer and jitter attenuator for signal integrity
• Supports both short haul and long haul transmission modes

Applications

• Local Area Network (LAN) infrastructure
• Wide Area Network (WAN) equipment
• Wireless base stations and gateways

Procurement Notes

Verify the manufacturer designation on official documentation, as IDT was historically associated with this part number before acquisition by Renesas. Confirm the specific suffix 'PFG' corresponds to the TQFP-128 package and tray packaging format. Ensure compliance with RoHS requirements by checking the detailed product attributes in the current datasheet.

Selection Notes

Select this component when a single IC solution is required for multiple T1/E1/J1 lines. The integrated equalization reduces external component count compared to discrete solutions. Verify that the 128-pin TQFP footprint fits the PCB layout constraints and that the thermal characteristics of the package meet the system's heat dissipation requirements.

Part Context

This component belongs to the 82V208x series of telecom interface ICs. It serves as a high-density alternative to single or dual channel LIUs, consolidating four interfaces into one package. This integration aids in reducing board space and simplifying design complexity for multi-port telecommunications hardware.

Replacement Considerations

The 82V2082PFG is a dual-channel variant within the same family. Direct substitution requires verifying if the reduced channel count meets system requirements. Pin compatibility should be confirmed via official cross-reference documents.