Infineon Technologies PXF 4222 E V1.3-G

Overview

PXF 4222 E V1.3-G from Infineon Technologies is an ATM interworking controller IC for PDH-to-ATM transport in 3G mobile infrastructure and multiservice WAN routers. It integrates AAL1 adaptation, IMA (4 groups, up to 8 links), on-chip RAM and microcontroller, supports up to 256 AAL1 connections, and delivers ≤16 Mbit/s throughput with SRTS/ACM clock recovery.

For engineers reviewing the PXF 4222 E V1.3-G datasheet, PXF 4222 E V1.3-G pinout, PXF 4222 E V1.3-G application, or PXF 4222 E V1.3-G equivalent, key selection criteria include AAL1 CES support, fractional E1/T1/J1 mapping per ITU-T G.804 and AF-PHY-0130.00, IMA differential delay compensation (25 ms), Utopia Level 1/2 interface compliance, and 3.3 V I/O / 1.8 V core power architecture.

Technical Context

The PXF 4222 E V1.3-G implements full ATM Adaptation Layer 1 (AAL1) per ITU-T I.363-1, supporting both channelized and unchannelized Circuit Emulation Service (CES) with Channel Associated Signaling (CAS). It embeds SRTS and ACM clock recovery methods for synchronization-sensitive voice/video transport over PDH networks.

Its Transmission Convergence (TC) sublayer complies with ITU-T G.804 and maps ATM cells onto fractional E1/T1/J1 lines per AF-PHY-0130.00. On-chip IMA processing handles up to 4 groups and 8 links with 25 ms differential delay compensation, while Utopia Level 1/2 and 16/32-bit microprocessor interfaces enable host integration in line card designs.

Key Specifications

Pinout & Package

Package: P-BGA-388 (Plastic Ball Grid Array, 388-ball, 27 mm × 27 mm, 1.0 mm pitch).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ATM interworking controller applications.

Compared with PM5352 and CX82310, the PXF 4222 E V1.3-G uniquely combines AAL1 CES, IMA, Utopia Level 2, and embedded control in one die-enabling full-featured, space-constrained ATM line cards without external glue logic or memory.

Availability

PXF 4222 E V1.3-G is available at Aetrix Electronics and suitable for 3G Node B deployments, multiservice DSLAM uplink cards, and WAN router line cards requiring stable component supply and long-term lifecycle support.

Supply support for PXF 4222 E V1.3-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, security, and communications ICs, with global R&D and manufacturing operations.

The IWORX-P product line targets ATM interworking in legacy telecom infrastructure, specifically enabling migration from PDH to ATM transport in 3G mobile and multiservice access networks.

FAQ

What clock recovery methods does the PXF 4222 E V1.3-G support for AAL1 CES?

The PXF 4222 E V1.3-G implements both Synchronous Residual Time Stamp (SRTS) and Adaptive Clock Mode (ACM) per ITU-T G.804. SRTS recovers timing from PDH line signals for strict TDM alignment; ACM adapts to variable network delays in packet-switched backhauls-both are hardware-accelerated and configurable per connection.

Does the PXF 4222 E V1.3-G require external memory for AAL1 connection tables?

No. The device integrates on-chip RAM sufficient to store configuration data, connection state, and OAM parameters for all 256 supported AAL1 connections. External memory is optional and used only for extended logging or non-real-time diagnostics-not for operational CES or IMA functions.

Can the PXF 4222 E V1.3-G operate with T1 and E1 simultaneously on the same device?

Yes. Its 8 E1/T1/J1 interfaces are fully independent and configurable per port. Each can be set to T1 (1.544 Mbps), E1 (2.048 Mbps), or J1 (1.544 Mbps) mode via register programming, enabling mixed T1/E1 line cards-common in North American and European multiservice deployments.

Is the Utopia interface on the PXF 4222 E V1.3-G compatible with Level 2 cell delineation?

Yes. The Utopia interface supports both Level 1 (cell payload only) and Level 2 (full cell header + payload) operation per ATMF AF-PHY-0017.000/0039.000. Level 2 mode enables direct connection to ATM switches that perform VP/VC routing, eliminating need for external header insertion logic.