PEF 24625 E V1.2

Telecom Overview

The PEF 24625 E V1.2 is a 16-channel Symmetric DSL Controller (SDC-16i) belonging to the SOCRATES-16Bis family of SHDSL transceivers. Designed for high-density DSLAM and DLC applications, it operates with only 3.3 V and 1.8 V power supplies. The component supports symmetric DSL protocols up to 6 Mbit/s, including G.SHDSL.bis, Packet TC, and M-pair mode. It provides UTOPIA, POS PHY, MII, and 16 TDM interfaces, enabling flexible channel bundling via a single API without external RAM or controllers.

Telecom Feature Summary

• Integrates a comprehensive 16-channel chipset architecture consisting of one SDC-16i controller and four SDFE-4 front ends.
• Supports advanced SHDSL protocols including G.SHDSL.bis, Packet TC, and various channel bundling technologies like IMA.
• Offers multiple interface options such as UTOPIA, POS PHY, MII, and TDM for versatile backplane connectivity.
• Features programmable channel bundling and transceiver control through a unified microcontroller interface.

Telecom Applications

• DSLAMs (IP/ATM)
• DLC
• MSAP
• CO line cards
• Remote DSLAM/DLC uplink

Telecom Procurement Notes

Verify the specific revision suffix against official Infineon documentation to ensure compatibility with required firmware and hardware configurations. Confirm package availability and lifecycle status directly with authorized distributors, as older generation telecom ICs may have limited supply chains or require alternative sourcing strategies.

Telecom Selection Notes

Select this component when designing high-density linecards requiring integrated SHDSL functionality. Ensure the design accommodates the required 3.3 V and 1.8 V dual-supply rails. Verify that the application utilizes the supported ATM, Ethernet, or TDM backplanes compatible with the provided UTOPIA and MII interfaces.

Telecom Part Context

This controller serves as the central processing unit within the SOCRATES-16Bis chipset, coordinating four separate SDFE-4 transceiver chips. It manages data framing, protocol handling, and channel bonding, allowing system designers to build scalable broadband access solutions with reduced bill-of-materials complexity.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider evaluating newer generations within the Infineon SOCRATES portfolio or consulting technical support for pin-compatible alternatives if redesigning existing hardware.

Telecom FAQ

What power supplies are required for the PEF 24625 E?

The device requires only 3.3 V and 1.8 V power supplies.

Does the SDC-16i require external memory for channel bundling?

No, the SDC-16i does not require external RAM or a controller for channel bundling operations.

What is the maximum data rate supported by this controller?

It supports symmetric DSL protocols up to 6 Mbit/s.