Infineon PEF24622EV1 Voice-over-IP and Voice-over-ATM Processor Data Sheet

The Infineon PEF24622EV1 is a highly integrated, single-chip processor engineered to deliver high-performance voice and telephony processing for both Voice-over-IP (VoIP) and Voice-over-ATM (VoATM) applications. This device stands as a cornerstone solution for developing next-generation network infrastructure, including digital gateways, access concentrators, and integrated access devices (IADs), where reliability, voice quality, and density are paramount.

At the core of the PEF24622EV1 is a powerful Dual DSP architecture complemented by a RISC-based control processor. This hybrid design efficiently handles the demanding computational tasks of voice processing—such as echo cancellation, voice compression, and packetization—while simultaneously managing system control and signaling protocols. The processor supports a comprehensive set of voice compression algorithms, including G.711 (A-law and μ-law), G.723.1, G.726, G.729A/B, and others, providing flexibility to optimize bandwidth usage and voice quality for specific network conditions.

A key strength of this component is its seamless interoperability across different network types. For VoIP, it integrates a full-featured packet engine with support for key protocols like Real-Time Transport Protocol (RTP)/RTCP and User Datagram Protocol (UDP), ensuring robust and standardized packet voice delivery over IP networks. For VoATM deployments, it incorporates segmentation and reassembly (SAR) functionality compliant with AAL1, AAL2, and AAL5 standards, making it a versatile choice for ATM-based voice services.

The device is further enhanced by its advanced echo cancellation capability, featuring a tail length of up to 128 ms, which is critical for maintaining superior voice quality on long-delay networks. It also includes sophisticated tone generation and detection, dial-tone multi-frequency (DTMF) processing, and caller ID functionality, offering a complete telephony subsystem on a single chip.

From a system design perspective, the PEF24622EV1 simplifies hardware design by reducing the number of external components required. It features direct interfaces to standard telephony interfaces (e.g., SLICs and codecs) as well as to common network interfaces like UTOPIA for ATM and Ethernet MAC for IP. This high level of integration significantly lowers the total bill of materials and accelerates time-to-market for product developers.

ICGOODFIND: The Infineon PEF24622EV1 is a robust and highly integrated processor that effectively consolidates critical voice processing functions for converging VoIP and VoATM networks. Its powerful dual-DSP design, comprehensive protocol support, and advanced voice quality features make it an exceptional solution for building high-density, carrier-grade voice gateways and IADs.

Keywords:

Voice-over-IP (VoIP)

Voice-over-ATM (VoATM)

Echo Cancellation

Dual DSP Architecture

Packetization