PEF 22552 E V1.1

Telecom Overview

The PEF 22552 E V1.1 is a DualFALM™ two-port E1/T1/J1 framer and line interface unit (LIU) from Infineon Technologies, designed for network equipment such as Radio Network Controllers, Node B line cards, PBX systems, and SDH/SONET ADMs. It features integrated analog switches for impedance matching and protection switching, along with a clock generation unit accepting reference clocks between 1.02 MHz and 20 MHz. The device supports software-programmable T1/E1/J1 standards, crystal-less wander and jitter attenuation, and provides six HDLC controllers with 128-byte FIFO buffers per channel. Operating on dual voltage supplies of 1.8 V or 3.3 V, it utilizes a PG-LBGA-160 package measuring 15x15 mm with a 1.0 mm ball pitch, functioning within a temperature range of -40°C to +85°C.

Telecom Feature Summary

• Integrated analog switches enable flexible impedance matching for various line types and support protection switching capabilities.
• Crystal-less wander and jitter attenuation compensates for signal degradation according to TR 62411 and ETS-TBR 12/13 standards.
• Six HDLC controllers per channel include deep FIFO buffers to facilitate CAS signaling and System #7 support.

Telecom Applications

• Wireless base stations
• Router
• Multi-service access platforms
• Digital loop carriers
• Remote access servers/concentrators

Telecom Procurement Notes

Verify the specific revision suffix against official documentation to ensure compatibility with existing system designs. Confirm that the component meets all necessary environmental compliance requirements for the intended deployment region before finalizing procurement plans.

Telecom Selection Notes

Select this component when designing multi-service access platforms requiring integrated framing and line interface functions in a compact form factor. Ensure the design accommodates the required dual voltage power supply rails and supports the specified operating temperature range for industrial applications.

Telecom Part Context

This component belongs to the DualFALM™ family, an addition to Infineon's FALC® series of advanced E1/T1/J1 components. It is software compatible with the QuadFALM and OctalFALM families, allowing for scalable system architectures while maintaining consistent programming interfaces across different channel counts.

Telecom Replacement Considerations

No direct replacement part numbers are documented in the provided source material. Designers should consult official Infineon resources for current product availability and potential obsolescence management strategies.