Infineon Technologies PEB 33321 EL V2.2-G

Overview

PEB 33321 EL V2.2-G from Infineon Technologies is a single-channel VoIP processor for Customer Premises Equipment, integrating G.729A/B/E and G.711/G.726/iLBC voice coding, T.38 fax relay, adaptive jitter buffer, and line echo cancellation up to 128 ms. It interfaces with external SLIC-DC V1.2 or SLIC-E V2.1 and supports PCM host interface, DTMF generation/reception, and caller ID signaling - deployed in compact VoIP adapters and SOHO IP PBX systems.

For engineers reviewing the PEB 33321 EL V2.2-G datasheet, PEB 33321 EL V2.2-G pinout, PEB 33321 EL V2.2-G application, or PEB 33321 EL V2.2-G equivalent, key selection criteria include SLIC interface compatibility (SLIC-DC V1.2/SLIC-E V2.1), dual-mode PCM interface support, real-time echo cancellation depth, T.38 fax relay capability, and software compatibility across VINETIC®-CPE family members.

Technical Context

The PEB 33321 EL V2.2-G implements a dedicated VoIP signal processing engine with hardware-accelerated G.729A/B/E and G.711/G.726 ADPCM codecs, enabling concurrent voice channel handling without host CPU overhead. Its line echo canceller uses window-based adaptive filtering with 128 ms tail length, and jitter buffer dynamically adjusts to network latency variations.

It operates as a slave device on the PCM bus (master/slave configurable), supports 8/16-bit linear μ-law/A-law PCM data, and provides full DTMF detection/generation plus CID receive/send via integrated tone and protocol engines - all coordinated through a unified firmware-driven API layer compatible with Linux and VxWorks drivers.

Key Specifications

Pinout & Package

PEB 33321 EL V2.2-G is housed in a PG-TQFP-64 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Infineon's VINETIC®-CPE Hardware Design Guide, Rev. 2.2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar VoIP processor applications.

Compared with PEB 33321 EL V2.2-G, PEB 3331 offers identical functionality without RoHS compliance, while PEB 3341 adds a second voice channel at the cost of SLIC interface removal and non-compatible pin mapping - making PEB 33321 optimal for single-channel, SLIC-coupled CPE designs requiring lead-free manufacturing.

Availability

PEB 33321 EL V2.2-G is available at Aetrix Electronics and suitable for VoIP analog telephone adapters, SOHO IP PBX systems, and xDSL home gateways requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for PEB 33321 EL V2.2-G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and communications solutions, with global R&D and manufacturing infrastructure.

The VINETIC®-CPE product line was designed specifically for cost-sensitive, space-constrained VoIP Customer Premises Equipment - delivering integrated voice processing, SLIC interfacing, and regulatory-compliant signaling in a single programmable SoC.

FAQ

Is PEB 33321 EL V2.2-G pin-compatible with other VINETIC®-CPE devices?

No - PEB 33321 EL V2.2-G uses PG-TQFP-64, while VINETIC®-PLUS devices (e.g., PEB 33322) use PG-LBGA-144, and VINETIC®-2CPE (PEB 3332) uses PG-TQFP-100. Only PEB 3331 shares identical pinout and footprint, differing solely in lead-free compliance.

Does PEB 33321 EL V2.2-G include an integrated SLIC?

No - it is a VoIP processor only and requires external SLIC-DC V1.2 or SLIC-E V2.1 for line feeding and analog interface. Unlike VINETIC®-PLUS variants, it does not integrate SLIC circuitry on-die.

What operating systems are supported by the official driver package?

Infineon provides production-grade drivers for Linux and VxWorks, both built on an OS-independent abstraction layer. The driver supports kernel versions 2.4.x and 2.6.x, and includes TAPI-compliant application interface for rapid telephony service development.

Can PEB 33321 EL V2.2-G handle simultaneous G.729 and G.711 calls?

No - it supports only one active voice channel. While it implements multiple codecs (G.729A/B/E, G.711, G.726, iLBC), they are time-multiplexed within that single channel; concurrent multi-codec operation is not supported.