Infineon Technologies PEF 24622 E V2.1

Overview

PEF 24622 E V2.1 from Infineon Technologies is a single-chip, 4-channel SHDSL transceiver compliant with ITU-T G.991.2 and ETSI TS 101524, supporting TCPAM line coding at 2–4 bits/symbol, synchronous/plesiochronous operation, and dual bearer mode. It integrates analog front-ends, DSPs, HDLC controllers, framer, µ-controller, PLL, and internal oscillator for full SHDSL physical layer functionality in DSLAMs and multichannel IADs.

For engineers reviewing the PEF 24622 E V2.1 datasheet, PEF 24622 E V2.1 pinout, PEF 24622 E V2.1 application in DSL loop extension or T1/E1 replacement, or PEF 24622 E V2.1 equivalent for SHDSL transceiver selection, this page delivers verified functional scope, power-per-channel performance, interface compatibility (Utopia L1/L2, TDM, µC-bus), and real-world deployment context.

Technical Context

The PEF 24622 E V2.1 implements four independent SHDSL channels sharing a common clock generator and µ-controller, each with integrated AFE + line driver, DSP-based TCPAM modulation/demodulation, and dual HDLC controllers (payload + EOC). It supports G.shdsl handshake startup with line probing and warmstart capability.

Its architecture enables universal operation as Central Office Terminal (COT) or Remote Terminal (RT), tunable internal hybrid for impedance matching, and single-supply operation across 1.8 V, 3.3 V, and 5 V domains. TTL-level I/O and JTAG boundary scan support production test and field diagnostics.

Key Specifications

Pinout & Package

PEF 24622 E V2.1 is housed in a 388-ball plastic ball grid array (P-BGA-388) package with 1.0 mm ball pitch, designed for high-density telecom PCB layouts and thermal dissipation in line card applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SHDSL transceiver applications.

Compared with MAX24622 and BCM6368, PEF 24622 E V2.1 delivers lowest per-channel power, smallest footprint, and highest SHDSL-specific integration - making it optimal for space- and thermal-constrained DSLAM line cards requiring pure SHDSL functionality.

Availability

PEF 24622 E V2.1 is available at Aetrix Electronics and suitable for DSLAM line cards, multichannel IADs, and digital loop carrier systems requiring stable component supply, long-term lifecycle support, and telecom-grade reliability.

Supply support for PEF 24622 E V2.1 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, industrial, and communications ICs, with leadership in telecom PHY solutions since the early 2000s.

PEF 24622 E V2.1 belongs to Infineon's SOCRATES™ family of SHDSL transceivers, engineered specifically for high-density, low-power, standards-compliant copper access infrastructure in carrier-class DSLAMs and IADs.

FAQ

Does PEF 24622 E V2.1 support both COT and RT modes on the same device?

Yes. The device supports configurable Central Office Terminal (COT) and Remote Terminal (RT) operation per channel via register settings. Each of the four channels can be independently assigned COT or RT role, enabling flexible deployment in repeater or bidirectional line card architectures without hardware changes.

What is the maximum supported loop length and data rate?

PEF 24622 E V2.1 achieves up to 12 km loop reach at 192 kbps (fractional E1) and 3.7 km at full-rate 2.312 Mbps (2×T1 or 4×E1), per ITU-T G.991.2 Annex A. Actual performance depends on copper gauge, loading, and noise; the tunable hybrid and line probing optimize for real-world loop conditions.

Is external memory required for the integrated µ-controller?

No. The embedded µ-controller executes firmware from on-chip ROM and uses internal SRAM for runtime variables. No external Flash or RAM is needed - all boot code, G.991.2 state machines, and diagnostic routines reside internally, minimizing external components and board space.

Can PEF 24622 E V2.1 interoperate with legacy SDSL equipment?

Yes. It supports 2B1Q line coding mode per ITU-T G.991.1, enabling interoperability with SDSL devices. This mode is selectable per channel and maintains full G.991.2 framing and OAM compatibility, allowing phased migration from SDSL to SHDSL in existing networks.