Infineon Technologies PEB22504HT-V11

Overview

PEB22504HT-V11 from Infineon Technologies is a quad-channel Line Interface Unit (LIU) for E1/T1/J1 telecommunication line interfaces, integrating four independent LIU channels with full receive equalization, transmit pulse shaping, jitter attenuation, and embedded framer interface. It operates from a single 3.3 V supply, supports ANSI T1.403, ITU-T G.703, and ETSI ETS 300 233 standards, and targets multi-channel access concentrators and integrated access devices.

For engineers reviewing the PEB22504HT-V11 datasheet, PEB22504HT-V11 pinout, PEB22504HT-V11 application, or PEB22504HT-V11 equivalent, key selection criteria include per-channel programmable line build-out, receiver sensitivity down to –43 dBm, elastic buffer depth of 128 bits per channel, and IEEE 1149.1 boundary scan support for production testability.

Technical Context

The PEB22504HT-V11 implements four independent LIU channels sharing a master clocking unit and microprocessor control interface. Each channel includes a short-haul/long-haul configurable receive equalizer, jitter attenuator with 128-bit elastic buffer, and transmit pulse-density enforcer compliant with AMI/HDB3/B8ZS coding.

It features a dedicated framer interface supporting both HDLC and bit-oriented framing, integrated maintenance functions including PRBS generation/monitoring and in-band loop detection, and register-based configuration via 8-bit parallel or SPI-compatible serial bus.

Key Specifications

Pinout & Package

PEB22504HT-V11 is housed in a 128-pin LQFP (20 mm × 20 mm, 0.4 mm pitch) package with exposed thermal pad. Pin assignments are defined across four functional groups: channel I/O (RX/TX differential pairs), system interface (8-bit parallel bus, /CS, /WR, /RD), clock inputs (MCLK, REFCLK), and configuration/maintenance signals (/RESET, /INT, TDI/TDO).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel E1/T1 line interface applications.

Compared with DS2155-01 and MC34119, PEB22504HT-V11 delivers true quad integration, 3.3 V efficiency, and production-ready testability-making it optimal for new multi-protocol access equipment where space, power, and test coverage are constrained.

Availability

PEB22504HT-V11 is available at Aetrix Electronics and suitable for DSLAM line cards, enterprise PBX gateways, mobile backhaul nodes, and industrial SCADA RTUs requiring stable component supply and long-term lifecycle support.

Supply support for PEB22504HT-V11 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, and communications ICs, with global R&D and manufacturing infrastructure.

The QuadLIU™ product line was designed specifically for carrier-grade multi-channel telecommunication line interface applications, targeting E1/T1/J1 physical layer convergence in access networks and integrated gateways.

FAQ

What is the maximum supported cable length for E1 operation?

The PEB22504HT-V11 supports E1 operation up to 1312 ft (400 m) using its programmable receive equalizer and line build-out. This is validated per ITU-T G.703 Annex A for 2.048 Mbps balanced transmission over 120 Ω twisted pair, with –43 dBm sensitivity and 18 dB transmit boost enabling full-length reach under worst-case attenuation.

Does PEB22504HT-V11 support both short-haul and long-haul T1 configurations?

Yes - each channel independently configures short-haul (0–615 ft) or long-haul (up to 1312 ft) mode via register bits RX_EQ_MODE and TX_LBO_EN. Short-haul uses passive termination and minimal equalization; long-haul activates adaptive receive equalization and programmable transmit boost up to 18 dB.

Can the device operate without an external framer IC?

No - the PEB22504HT-V11 provides only the physical layer (Layer 1) interface and does not include framing, CRC, or HDLC processing. It requires connection to an external framer (e.g., Infineon PEB2081 or TI TMS320C54x DSP) via its dedicated framer interface pins (FCLK, FSYNC, FDAT).

Is boundary scan supported on all four channels simultaneously?

Yes - the IEEE 1149.1 boundary scan unit tests all 128 pins, including all four RX/TX differential pairs, control signals, and bus lines. Scan chain configuration allows per-channel isolation during interconnect testing, and BSDL files are provided in Infineon's DS4 documentation package.