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Infineon Technologies PEB 4264-2 T V1.2
- Part No.:
- PEB 4264-2 T V1.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
PEB 4264-2 T V1.2.pdf
- Description:
- IC TELECOM INTERFACE PDSO-20
- Quantity:
- Payment:
- Shipping:
Inventory:2,492
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Product details
Overview
PEB 4264-2 T 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. It supports ITU-T G.712-compliant analog interface with ±72 V DC feed range, 16-bit PCM interface, and internal balanced ringing up to 90 VRMS. Used in carrier-grade VoIP gateways and ISDN terminal adapters.
For engineers reviewing the PEB 4264-2 T V1.2 datasheet, PEB 4264-2 T V1.2 pinout, PEB 4264-2 T V1.2 application, or PEB 4264-2 T V1.2 equivalent, key selection criteria include dual-line SLIC integration, programmable DC feed zones (constant current/resistive/voltage), integrated NLP and line echo cancellation, and support for Bellcore caller ID physical layer transmission.
Technical Context
The PEB 4264-2 T V1.2 implements a dual-channel DuSLIC architecture combining SLICOFI-2 digital controller with external SLIC drivers (e.g., PEB 4266), enabling independent per-channel DC feed control, AC signal path separation, and synchronized PCM timing. It supports both single- and double-clocking IOM-2/PCM interfaces at 1.536 MHz or 2.048 MHz.
Its functional partitioning separates digital signal processing (DTMF, caller ID, echo cancellation) from analog line conditioning, with register-controlled DC zone transitions (VTR,RMS up to 90 V, VDROP,TR ≤ 12 V), programmable ring trip thresholds, and hardware-assisted metering via polarity reversal or 12/16 kHz bursts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | Dual independent subscriber line interfaces with separate DC/AC control registers. |
| DC Feed Voltage Range | ±72 V maximum line-to-ground voltage; supports extended battery feeding up to 120 V total loop supply. |
| AC Transmission Distortion | ≤ –60 dB (at 1 kHz, 0 dBm), meeting ITU-T G.712 Class A performance for voiceband fidelity. |
| PCM Interface | 16-bit μ-law/A-law compatible, IOM-2 compliant, supports 1.536/2.048 MHz clocking with tFSC_h1/tFSC_h2 hold time control. |
| Ringing Output | Internal balanced ringing up to 90 VRMS; supports unbalanced external ringing via SLIC-P with programmable ring trip detection. |
| Supervision Functions | Real-time hook/hook-flash/gnd-key detection, polarity reversal metering, and soft reversal with configurable timing. |
| Integrated DSP Features | DTMF generation/detection, Bellcore-compliant caller ID buffer handling, NLP coefficients programmable via POP registers. |
Pinout & Package
PEB 4264-2 T V1.2 is housed in a 64-pin TQFP package (P-TQFP-64-1) with 0.5 mm pitch, thermally enhanced for high-power SLIC operation. Pin assignments are defined in Infineon's device-specific data sheets; this controller IC interfaces externally with SLIC driver chips (e.g., PEB 4266) via dedicated analog control lines and digital registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VSSIO | I/O Power Supply | 3.3 V digital core interface supply; decoupling required for PCM/IOM-2 timing integrity. |
| CLKIN / CLKOUT | Master Clock Interface | Accepts 1.536/2.048 MHz system clock; drives synchronous SLICOFI-2 internal timing and register latching. |
| FSC / DTX / DRX | PCM Frame Sync & Data | Standard IOM-2 interface: FSC defines frame boundary; DTX/DRX carry 16-bit PCM samples per channel. |
| INT1 / INT2 | Interrupt Outputs | Active-low status flags for hook change, ring detect, DTMF event, or error conditions; level- or edge-triggered per register config. |
| CITACA / CITACB | Current Injection Test Control | Analog test access points for calibrated DC feed verification and line capacitance measurement per ITU-T O.43. |
| TS2/CS | SLIC Driver Select | Chip select for daisy-chained SLIC drivers (e.g., PEB 4266); enables per-channel analog path configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel DC feed zoning | Independent programmable constant-current (up to 45 mA), resistive, and constant-voltage modes per line with auto-transition logic. |
| Integrated caller ID buffer | On-chip FIFO with automatic Bellcore on-hook transmission sequencing and CRC-validated data framing. |
| Hardware-accelerated NLP | Non-linear processor with 16 programmable coefficient sets for echo suppression during 3-way conferencing. |
| Programmable ring trip threshold | Configurable voltage-based ring detection (VTR0,RMS) with hysteresis to prevent false trips on noisy loops. |
| Line testing via ITDF | Integrated Test and Diagnostic Functions enable open/short/capacitance measurements without external equipment using CITACA/CITACB pins. |
Applications
| VoIP Residential Gateway | ISDN Terminal Adapter (TA) |
|---|---|
Use Scenario: Dual-line residential gateway connecting POTS phones to SIP-based VoIP networks. IC Role / Device Role / Timing Role: Dual SLIC controller managing DC feed, ringing, and PCM digitization for two independent analog lines. Use Value: Enables simultaneous call handling with G.712-compliant voice quality and Bellcore caller ID delivery without external DSP offload. | Use Scenario: ISDN TA converting BRI S/T interface to two analog phone lines. IC Role / Device Role / Timing Role: Acts as line interface bridge between ISDN controller and legacy telephones, providing supervision and metering. Use Value: Supports polarity reversal metering and hook-flash signaling required for ISDN supplementary services like call waiting. |
| Carrier-Class Media Gateway | Enterprise IP-PBX Analog Module |
Use Scenario: High-density media gateway serving hundreds of analog lines in central office environments. IC Role / Device Role / Timing Role: Digital controller coordinating multiple external SLIC drivers (e.g., PEB 4266) per board via TS2/CS daisy-chain. Use Value: Scalable architecture allows 16+ channels per board with centralized register management and synchronized reset sequencing. | Use Scenario: Modular analog interface card for IP-PBX supporting fax, modem, and analog handsets. IC Role / Device Role / Timing Role: Provides line-side echo cancellation, DTMF detection, and caller ID generation for each port. Use Value: Eliminates need for discrete echo cancellers and tone detectors, reducing BOM cost and PCB area by 35% vs. discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SLIC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEB 4265-2 T V1.2 | Includes enhanced EDSP capabilities: additional NLP coefficient sets and extended MIPS budget for multi-party conferencing. | Required when >2 concurrent conference participants must be supported with full echo cancellation per leg. | Select PEB 4265-2 if conferencing beyond 3 parties is mandatory; otherwise PEB 4264-2 offers identical SLIC control and lower cost. |
| SLICOFI-2S (PEB 4264-2S) | Same core functionality but with updated revision 1.5 firmware, including modified ITDF calibration routines and extended LM-OK timing. | Suitable where field-upgradable diagnostics and tighter capacitance measurement accuracy (±0.5 nF) are critical. | Choose SLICOFI-2S only if latest ITDF behavior or revised LMRES1/LMRES2 register mapping is required per system validation. |
Compared with PEB 4264-2 T V1.2, PEB 4265-2 adds conferencing headroom while SLICOFI-2S refines diagnostic precision-neither is pin-compatible nor drop-in; both require register map review and firmware adaptation.
Availability
PEB 4264-2 T V1.2 is available at Aetrix Electronics and suitable for VoIP gateways, ISDN terminal adapters, carrier media gateways, and enterprise IP-PBX analog modules requiring stable component supply across long-lifecycle telecom deployments.
Supply support for PEB 4264-2 T 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 centers and ISO/TS 16949-certified fabrication.
The DuSLIC product line was engineered specifically for carrier-grade wired telephony infrastructure, targeting high-reliability analog line interface in VoIP, ISDN, and legacy PSTN migration systems.
FAQ
What is the maximum allowable loop resistance supported by PEB 4264-2 T V1.2?
The device supports loop resistances up to 2.2 kΩ in constant-current mode (45 mA) with ±72 V feed, verified per ITU-T G.961 Annex A. This assumes 12 V drop across the SLIC driver (e.g., PEB 4266) and accounts for worst-case cable loss at 3 km. Higher resistance requires external boost or reduced current setting.
Does PEB 4264-2 T V1.2 integrate the analog SLIC circuitry or require external drivers?
PEB 4264-2 T V1.2 is a digital controller only and requires external analog SLIC drivers such as PEB 4266 for line-side current/voltage generation. It provides precise digital control over DC feed, ringing, and supervision but does not contain high-voltage analog power stages.
How is caller ID data buffered and transmitted in PEB 4264-2 T V1.2?
Caller ID data is stored in an on-chip 128-byte FIFO and transmitted during on-hook intervals using Bellcore TR-NWT-000076-compliant FSK modulation at 1200 bps. The SLICOFI-2 handles automatic frame synchronization, CRC-16 calculation, and retry logic without host CPU intervention.
Can PEB 4264-2 T V1.2 operate with both μ-law and A-law PCM encoding?
Yes - the IOM-2 interface supports both μ-law (G.711) and A-law encoding via software-selectable register bits in the XCR and BCR1 registers. Encoding format is configured independently per channel and persists across hardware reset.
PEB 4264-2 T V1.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- DuSLIC
- Package/Case:
- 20-SOIC (0.433", 11.00mm Width) 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:
- 3.3V ~ 5V
- Current - Supply:
- 105mA
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-DSO-20-5
PEB 4264-2 T V1.2 FAQ
1.How can I place an order for PEB 4264-2 T V1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEB 4264-2 T 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 4264-2 T V1.2 reliable?
The price and inventory of PEB 4264-2 T 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 4264-2 T V1.2 is usually 5 days.
3.What payment methods are accepted for PEB 4264-2 T V1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB 4264-2 T V1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEB 4264-2 T V1.2?
PEB 4264-2 T V1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEB 4264-2 T 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 4264-2 T V1.2?
For technical support, including PEB 4264-2 T V1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEB 4264-2 T V1.2 requirements.
6.How does Aetrix verify that PEB 4264-2 T V1.2 is sourced from the original manufacturer or authorized distributors?
All PEB 4264-2 T 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 4264-2 T V1.2 meets industry standards.
7.What is the process for return or replacement of PEB 4264-2 T V1.2?
All PEB 4264-2 T V1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEB 4264-2 T 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 4264-2 T V1.2 part is unused and in its original packaging.
Return procedure for PEB 4264-2 T V1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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