PEF 21628 E V1.2-G

Telecom Overview

The PEF21628EV1.2-G is a SHDSL transceiver manufactured by Infineon Technologies, designed for high-speed digital subscriber line applications over copper pairs. It integrates the physical layer modem and interface logic required for symmetric data transmission. The component supports standard SHDSL modulation schemes to deliver consistent bandwidth over varying line lengths without requiring vectoring or advanced compression techniques. It operates within standard industrial temperature ranges and utilizes a surface-mount package suitable for automated assembly in telecommunications infrastructure equipment.

Telecom Feature Summary

• Integrated SHDSL physical layer modem with built-in line driver and receiver
• Supports symmetric data rates compliant with ITU-T G.991.2 standards
• Includes diagnostic features for line monitoring and fault detection

Telecom Applications

• SHDSL network termination units (NTUs)
• Symmetric broadband access gateways
• Industrial communication interfaces requiring reliable copper pair connectivity

Telecom Procurement Notes

This component is listed as obsolete or end-of-life by the manufacturer. Availability is restricted to existing stock or surplus channels. Verification of authenticity and storage history is critical due to the age of the product. Ensure that any sourced units meet current RoHS compliance requirements if applicable to the target deployment environment.

Telecom Selection Notes

Designers should consider the obsolete status when planning long-term production runs. Alternative solutions from the same manufacturer or competitors offering active lifecycle support are recommended for new designs. Verify pin compatibility and software drivers if migrating from previous revisions within the PEF216xx family.

Telecom Part Context

The PEF21628 series belongs to Infineon's portfolio of DSL transceivers aimed at providing cost-effective symmetric broadband solutions. These devices were widely used in the transition period between legacy T1/E1 services and modern asymmetric DSL technologies, offering a robust alternative for applications requiring equal upstream and downstream throughput.

Telecom Replacement Considerations

Direct pin-to-pin replacements may not be available due to the discontinued status. Review Infineon's newer SHDSL or VDSL2 transceiver families for functional equivalents. Consult official replacement guides to ensure electrical and protocol compatibility.