Infineon PEF22554HTV1: A High-Performance E1/T1/J1 Framer and Line Interface Solution

The Infineon PEF22554HTV1 stands as a highly integrated, feature-rich single-chip framer and line interface unit (LIU) designed for robust telecommunications and data communication applications. It provides a comprehensive physical layer solution for E1, T1, and J1 line interfaces, which are fundamental to digital transmission networks globally. This device is engineered to meet the stringent performance, reliability, and flexibility demands of next-generation access gateways, media servers, routers, and digital cross-connect systems.

At its core, the PEF22554HTV1 excels through its exceptional signal integrity and jitter performance. The integrated LIU supports both short-haul and long-haul applications, featuring programmable line build-out (LBO) and adaptive equalization to compensate for signal attenuation over various cable lengths. This ensures stable and reliable data transmission even in electrically noisy environments. Its advanced framer functionality handles all necessary framing, deframing, and overhead processing for PCM (Pulse Code Modulation) data streams, compliant with international ITU-T and ANSI standards.

A key strength of this solution is its high level of integration and power efficiency. By combining the framer and LIU into a single chip, Infineon significantly reduces the component count on the board, leading to a smaller footprint, lower power consumption, and reduced overall system cost. Furthermore, the device offers extensive system-level diagnostic capabilities, including performance monitoring and error insertion/detection for Bit Error Rate Testing (BERT), which are crucial for system maintenance, troubleshooting, and ensuring quality of service (QoS).

The PEF22554HTV1 also supports multiple system interfaces, such as a serial Highway Interface and a parallel H.100/H.110 CT-Bus interface, offering designers flexibility in connecting to various host processors or FPGAs. Its programmability allows it to be easily configured for different operational modes, making it a versatile choice for multi-service platform designs that must adapt to diverse network requirements.

ICGOODFIND: The Infineon PEF22554HTV1 is a premier, all-in-one solution for designers building equipment for legacy digital trunking interfaces. Its combination of high integration, superior signal performance, and comprehensive diagnostic features makes it an ideal choice for developing reliable and efficient network infrastructure equipment.

Keywords: Framer and LIU, E1/T1/J1 Interfaces, Signal Integrity, System Integration, Performance Monitoring.