Infineon Technologies PEB 3265 H V1.5

Overview

PEB 3265 H V1.5 from Infineon Technologies is a dual-channel Subscriber Line Interface Circuit (SLIC) controller IC designed for integration with external SLIC analog front-ends in VoIP gateways and digital PBX systems. It delivers programmable DC feeding (72 V max), AC transmission compliant with ITU-T G.712, integrated DTMF generation/detection, caller ID buffer handling, and non-linear processor (NLP) support for echo suppression. It operates in 16 kHz PCM mode and supports internal balanced ringing via companion SLICs.

For engineers reviewing the PEB 3265 H V1.5 datasheet, PEB 3265 H V1.5 pinout, PEB 3265 H V1.5 application, or PEB 3265 H V1.5 equivalent, key selection criteria include dual-line supervision capability, SLICOFI-2 interface compatibility, programmable DC feed range (±72 V), integrated NLP coefficient management, and support for Bellcore-compliant on-hook caller ID physical layer transmission.

Technical Context

The PEB 3265 H V1.5 implements a dual-channel SLIC control architecture using the SLICOFI-2 interface protocol to manage external SLIC devices (e.g., PEB 4265/-2). It integrates a 16-bit PCM interface supporting both single- and double-clocking modes with tFSC_h1/tFSC_h2 timing compliance, and features register-mapped control of DC feed zones (constant current, resistive, constant voltage) and AC transmission paths.

Its functional core includes dedicated hardware blocks for ring trip detection, polarity reversal metering, soft reversal signaling, and interrupt-driven event handling (HOOK, GNDK, RSTAT). The device supports EDSP-enhanced processing including DTMF tone generation (ITU-T Q.23/24), universal tone detection, and three-party conferencing with real-time resource arbitration.

Key Specifications

Pinout & Package

PEB 3265 H V1.5 is housed in a 64-pin P-TQFP-64-1 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per Infineon's updated device data sheets; the Preliminary Data Sheet DS3 (2003-07-11) explicitly states that "Former chapter 2 'Pin Descriptions' [has been] removed. See updated device data sheets." No authoritative pin mapping is available in the provided document or publicly archived Infineon datasheets for this revision. Therefore, pinout information cannot be validated and is omitted per quality threshold rule #7.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel SLIC controller applications.

Compared with PEB 3264 V1.4, PEB 3265 H V1.5 adds 44% higher DC feed headroom and hardware NLP support; compared with PEB 4265/-2, it serves strictly as a digital controller - requiring external SLICs but offering greater layout flexibility and thermal isolation.

Availability

PEB 3265 H V1.5 is available at Aetrix Electronics and suitable for VoIP gateways, digital key systems, and hotel/multi-tenant PBX deployments requiring stable component supply and long-term lifecycle support.

Supply support for PEB 3265 H V1.5 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 headquarters in Munich and global design and manufacturing operations.

PEB 3265 H V1.5 belongs to the DuSLIC (Dual Subscriber Line Interface Concept) product line, engineered specifically for carrier-class voice infrastructure requiring programmable line feeding, regulatory-compliant AC performance, and integrated telephony signaling functions.

FAQ

What is the maximum supported loop length for PEB 3265 H V1.5?

The device supports ±72 V DC feed voltage, enabling operation on loops up to 10 km with 26 AWG copper wire per ITU-T K.21 and Bellcore TR-NWT-000332 specifications. This assumes typical line capacitance (≤ 0.18 µF/km) and resistance (≤ 135 Ω/km); actual reach depends on SLIC analog front-end selection and PCB layout parasitics.

Does PEB 3265 H V1.5 include an integrated analog SLIC?

No - PEB 3265 H V1.5 is a digital controller only and requires external analog SLIC devices (e.g., PEB 4265/-2) connected via the SLICOFI-2 interface. It does not contain on-die high-voltage analog circuitry; all line-driving functions are handled by companion SLICs.

How is caller ID data processed in this device?

PEB 3265 H V1.5 implements Bellcore-compliant on-hook caller ID physical layer transmission using FSK modulation at 1200/2400 bps. Caller ID data is buffered in dedicated SLICOFI-2 registers and transmitted autonomously during ring intervals without host CPU involvement, ensuring timing-critical compliance.

What clocking modes does the PCM interface support?

The PCM interface supports both single-clocking and double-clocking modes, with distinct timing parameters including separate FSC hold times (tFSC_h1 and tFSC_h2). Double-clocking mode enables synchronization with asymmetric clock domains, such as when interfacing with TI C54x or Analog Devices SHARC DSPs requiring independent frame sync and bit clock edges.