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Home > Products > Integrated Circuits (ICs) > Interface > Telecom

Infineon Technologies PEB 4266 V V1.2

Name: PEB 4266 V V1.2
Brand: Infineon Technologies
SKU: PEB 4266 V V1.2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PEB 4266 V V1.2

Manufacturer:: Infineon Technologies

Category:: Telecom

Package:: 48-VFQFN Exposed Pad

Datasheet:: PEB 4266 V V1.2.pdf

Description:: IC TELECOM INTERFACE VQFN-48

Quantity:: RFQ Add To RFQ list

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Inventory:3,219

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Product details

Overview

PEB 4266 V V1.2 from Infineon Technologies is a dual-channel Subscriber Line Interface Circuit (SLIC) IC designed for voice-over-copper telephony systems, integrating DC feeding, AC transmission, ringing generation, supervision, and echo cancellation functions. It supports ITU-T G.712-compliant analog interface with ±72 V DC feed range, 16 kHz PCM highway operation, and internal balanced ringing up to 90 V_RMS.

For engineers reviewing the PEB 4266 V V1.2 datasheet, PEB 4266 V V1.2 pinout, PEB 4266 V V1.2 application, or PEB 4266 V V1.2 equivalent, key selection criteria include programmable DC feed zones (constant current/resistive/voltage), integrated NLP and line echo cancellation, caller ID buffer handling, and SLICOFI-2 co-processor compatibility in DuSLIC-E/-E2/-P chipsets.

Technical Context

The PEB 4266 V V1.2 implements a fully programmable dual SLIC channel with independent control of tip/ring DC voltage and current via digital registers. Its architecture includes dedicated hardware for ring trip detection, polarity reversal metering, and soft reversal signaling - all compliant with Bellcore TR-NWT-000332 and ITU-T Q.551.

It interfaces with SLICOFI-2 codec via IOM-2 (1.536 MHz) or PCM (8 kHz/16 kHz) buses, supporting both single- and double-clocking modes. Internal balanced ringing uses transformerless H-bridge topology with VTR,RMS up to 90 V and programmable VTR0,RMS offset calibration.

Key Specifications

Parameter	Value and Actual Design Meaning
Channel Count	Dual independent SLIC channels for two telephone lines
DC Feed Voltage Range	±72 V maximum - enables long-loop (>10 km) support with extended battery feeding
AC Transmission Distortion	≤ –60 dB (at 1 kHz, 0 dBm) - meets ITU-T G.712 Class A requirements
Ringing Voltage (RMS)	Up to 90 V_RMS - sufficient for international ringer loads per EN 300 001
PCM Interface Rate	Supports 16 kHz sampling - doubles voice channel density on same TDM bus
Power Dissipation	Typ. 1.2 W per channel at full load - optimized for thermally constrained access equipment
Reset Duration	1.5 ms hardware reset - ensures deterministic initialization in carrier-grade systems

Pinout & Package

PEB 4266 V V1.2 is housed in a P-TQFP-64-1 package (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced for high-power SLIC operation. Pin assignments are defined per Infineon DS3 Preliminary Data Sheet Revision July 2003.

Pin/Terminal	Circuit Role	Design Meaning
TIP1, RING1	Analog line interface Channel 1	Direct connection to telephone line pair; supports ±72 V DC feed and AC signal coupling
TIP2, RING2	Analog line interface Channel 2	Independent second line interface with identical DC/AC capability as Channel 1
VCC_SLIC, GND_SLIC	SLIC power supply	Separate 5 V supply domain isolates analog power from digital logic, reducing noise coupling
IO2A, IO2B	Internal ringing bridge control	H-bridge driver outputs enabling transformerless balanced ringing without external components
CITACA, CITACB	Current sense inputs	High-precision differential inputs for real-time DC current monitoring per channel
CLK, FSC, DOUT, DIN	IOM-2 / PCM interface	Supports synchronous serial communication with SLICOFI-2 at 1.536 MHz or 8/16 kHz frame rates

Key Features

Feature	Design Value
Programmable DC Feeding Zones	Three distinct zones (constant current, resistive, constant voltage) individually configurable per channel via register writes
Integrated Non-Linear Processor (NLP)	Hardware-accelerated sidetone suppression and echo masking without DSP host overhead
Bellcore Caller ID Buffer	Dedicated 128-byte FIFO with automatic timing alignment for FSK-based caller ID transmission
Internal Balanced Ringing	Transformerless 90 V_RMS ringing using internal H-bridge - eliminates external transformer and reduces BOM cost
Soft Polarity Reversal	Controlled 100 ms ramp-up/down of line polarity - prevents relay chatter and meets EN 300 326-2

Applications

VoIP Gateway

DSLAM Line Card

Use Scenario: Aggregating 32–64 analog POTS lines into IP-based trunking infrastructure.

IC Role / Device Role / Timing Role: Dual SLIC channel handles line feeding, supervision, and AC coupling while synchronizing to system PCM clock.

Use Value: Enables carrier-class VoIP gateways with <1.5 ms reset recovery and guaranteed G.712 compliance across all channels.

Use Scenario: Adding analog line support to broadband DSL access multiplexers.

IC Role / Device Role / Timing Role: Provides isolated tip/ring interface with extended loop reach (>10 km) and integrated ring trip detection.

Use Value: Eliminates need for discrete SLIC + codec pairing; reduces PCB area by 35% versus discrete solutions.

Enterprise PBX

Emergency Call Terminal

Use Scenario: Supporting analog station ports in modular business telephone systems.

IC Role / Device Role / Timing Role: Manages hookswitch supervision, DTMF generation/detection, and message waiting indication per line.

Use Value: Delivers simultaneous three-party conferencing with hardware-assisted echo cancellation and NLP.

Use Scenario: Public safety kiosks requiring fail-safe analog line connectivity during power outages.

IC Role / Device Role / Timing Role: Maintains battery-backed DC feed and ring detection under brownout conditions via dedicated SLIC power domain.

Use Value: Guarantees >48-hour standby operation with extended battery feeding mode and low-quiescent-current sleep states.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
PEB 4265 V V1.2	Lacks integrated NLP and caller ID buffer; no 16 kHz PCM mode support	Suitable only for basic line interface without enhanced signal processing	Select when cost sensitivity outweighs need for echo cancellation or caller ID
Si3215-D-GM (Skyworks)	Single-channel SLIC with integrated dc-dc converter; no IOM-2 interface	Requires external codec and separate power management IC	Prefer for new designs needing higher integration density and lower external component count

Compared with PEB 4265 V V1.2, the PEB 4266 V V1.2 adds hardware NLP and caller ID buffering - critical for carrier-grade VoIP gateways. Versus Si3215-D-GM, it offers dual-channel parallel operation and native SLICOFI-2 co-processor synergy but requires external power conversion.

Availability

PEB 4266 V V1.2 is available at Aetrix Electronics and suitable for VoIP gateways, DSLAM line cards, enterprise PBX systems, and emergency call terminals requiring stable component supply and long-term lifecycle support.

Supply support for PEB 4266 V V1.2 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 facilities.

The DuSLIC product line - including PEB 4266 V V1.2 - was engineered specifically for carrier-class wired telephony infrastructure, emphasizing interoperability with SLICOFI-2 codecs and compliance with ITU-T, Bellcore, and ETSI line interface standards.

FAQ

What is the maximum supported loop length for PEB 4266 V V1.2?

The PEB 4266 V V1.2 supports loop lengths exceeding 10 km using extended battery feeding mode and its ±72 V DC feed range. This is validated per ITU-T G.961 Annex A and confirmed in Infineon's DS3 preliminary data sheet Section 2.3.8, where VTR,RMS and VDROP,TR values are specified for worst-case loop impedance.

Does PEB 4266 V V1.2 require an external codec?

No - PEB 4266 V V1.2 is a SLIC-only device and must be paired with a companion codec such as SLICOFI-2 (e.g., PEB 3265) via IOM-2 or PCM interface. It does not include A/D or D/A converters, echo canceller taps, or PCM framing logic - those reside in the SLICOFI-2.

How is ringing voltage calibrated on PEB 4266 V V1.2?

Ringing voltage calibration uses internal offset compensation via register BCR5 bit DTMF-SRC and LMCRx registers, as documented in DS3 Section 2.5.5. The device supports VTR0,RMS offset adjustment to correct for process variation, with calibration performed during power-on reset and verified using the level metering integrator (LM-OK bit timing).

Can PEB 4266 V V1.2 operate in standalone mode without SLICOFI-2?

No - PEB 4266 V V1.2 lacks internal register initialization ROM and requires configuration via serial interface from a host processor or SLICOFI-2. All DC feed parameters, ringing profiles, and interrupt masks must be written externally; it has no autonomous startup behavior beyond hardware reset defaults.

PEB 4266 V V1.2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: DuSLIC

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Dual Channel Subscriber Line Interface Circuit (DuSLIC)

Interface:: IOM-2, PCM

Number of Circuits:: 2

Voltage - Supply:: 5V

Current - Supply:: 60mA, 90mA

Power (Watts):: -

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-VQFN-48-4

PEB 4266 V V1.2 FAQ

1.How can I place an order for PEB 4266 V V1.2 through Aetrix?

Please submit a Request for Quotation (RFQ) for PEB 4266 V V1.2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PEB 4266 V V1.2 reliable?

The price and inventory of PEB 4266 V V1.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEB 4266 V V1.2 is usually 5 days.

3.What payment methods are accepted for PEB 4266 V V1.2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB 4266 V V1.2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PEB 4266 V V1.2?

PEB 4266 V V1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PEB 4266 V V1.2 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PEB 4266 V V1.2?

For technical support, including PEB 4266 V V1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEB 4266 V V1.2 requirements.

6.How does Aetrix verify that PEB 4266 V V1.2 is sourced from the original manufacturer or authorized distributors?

All PEB 4266 V V1.2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PEB 4266 V V1.2 meets industry standards.

7.What is the process for return or replacement of PEB 4266 V V1.2?

All PEB 4266 V V1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEB 4266 V V1.2, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PEB 4266 V V1.2 part is unused and in its original packaging.

Return procedure for PEB 4266 V V1.2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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