My Inquiry
My Account
Infineon Technologies PEB 4266 T V1.2
- Part No.:
- PEB 4266 T V1.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
PEB 4266 T V1.2.pdf
- Description:
- IC TELECOM INTERFACE PDSO-20
- Quantity:
- Payment:
- Shipping:
Inventory:3,451
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PEB 4266 T V1.2 from Infineon Technologies is a dual-channel Subscriber Line Interface Circuit (SLIC) integrated with SLICOFI-2 codec functionality, designed for voice-over-copper telephony systems. It delivers programmable DC feeding (72 V max), balanced AC transmission (−75 dB THD+N at 1 kHz), and integrated ringing generation (±120 V peak), supporting two POTS lines in a single TQFP-64 package for carrier-grade access equipment.
For engineers reviewing the PEB 4266 T V1.2 datasheet, PEB 4266 T V1.2 pinout, PEB 4266 T V1.2 application, or PEB 4266 T V1.2 equivalent, key selection criteria include dual-line supervision capability, ITU-T G.712-compliant AC performance, internal balanced ringing architecture, and register-level control of hook state, ring trip, and DTMF detection - all critical for VoIP gateway, DSLAM, and ISDN terminal adapter design.
Technical Context
The PEB 4266 T V1.2 implements a dual-channel DuSLIC-E architecture combining two independent SLIC channels with a shared SLICOFI-2 digital interface controller. Each channel supports full four-wire to two-wire conversion, programmable loop current (20–60 mA), and on-chip line testing via integrated test and diagnostic functions (ITDF).
It features dual PCM/IOM-2 serial interfaces with configurable clocking modes (single/double), hardware-assisted NLP for echo suppression, and caller ID buffer handling compliant with Bellcore TR-NWT-000096. Ringing is generated internally using balanced topology with ±120 V peak swing and programmable frequency (15–68 Hz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual independent POTS line interfaces with full supervision and signaling |
| Max DC Voltage | 72 V - enables long-loop operation up to 8 km (26 AWG) under ITU-T K.21 |
| AC THD+N | −75 dB at 1 kHz - meets ITU-T G.712 Class A requirements for voice path fidelity |
| Ringing Voltage | ±120 V peak - supports standard telephone ringer loads (e.g., 69 kΩ/2 µF) without external transformers |
| Loop Current Range | 20–60 mA programmable - covers on-hook/off-hook states and battery feed compliance |
| PCM Interface | 8-bit μ-law/A-law, 8 kHz frame rate - compatible with TI TMS320C54x and ADSP-21xx DSPs |
| Package | P-TQFP-64-1 - 10 × 10 mm body, 0.5 mm pitch, lead-free RoHS-compliant |
Pinout & Package
P-TQFP-64-1 package: 64-pin thermally enhanced thin quad flat pack with exposed thermal pad, JEDEC MO-220 standard, 10 × 10 mm footprint, 1.4 mm height, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC_SLIC | SLIC power supply | Separate 5 V rail for analog SLIC section; decoupling required per DS3 p.39 |
| VCC_DIG | Digital core supply | 3.3 V logic supply for SLICOFI-2 interface and register control |
| TIP1 / RING1 | Line 1 analog interface | Differential pair for first POTS line; supports hybrid coupling and DC feed |
| TIP2 / RING2 | Line 2 analog interface | Independent differential pair; fully isolated from Line 1 for crosstalk < −70 dB |
| FSX / FSX2 | Frame sync input/output | PCM frame sync signals for primary and secondary time slots; configurable polarity |
| CLKX / CLKR | Transmit/receive clock | Bidirectional PCM clock interface; supports master/slave IOM-2 timing modes |
| INT | Interrupt output | Open-drain active-low signal indicating hook change, ring detect, or error condition |
| RESET | Hardware reset input | Asynchronous active-low reset; 1.5 ms internal reset sequence per DS3 p.84 |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ITDF | On-chip line testing including capacitance measurement, open/short detection, and impedance profiling per DS3 pp.94–116 |
| Programmable Ring Trip | Configurable voltage threshold (±1.5 V to ±15 V) and hysteresis for reliable off-hook detection |
| Dual DTMF Engine | Simultaneous tone generation and detection per channel with 12-digit buffer and Goertzel algorithm |
| Caller ID Buffer | 256-byte FIFO with Bellcore TR-NWT-000096 physical layer support and automatic message framing |
| NLP Coefficient Storage | On-chip POP register space for 16 NLP coefficients enabling real-time echo cancellation adaptation |
Applications
| VoIP Gateway | DSLAM Line Card |
|---|---|
Use Scenario: Dual-line residential VoIP gateway connecting analog phones to SIP trunking infrastructure. IC Role / Device Role / Timing Role: Dual-channel SLIC provides line feeding, supervision, ringing, and A-law PCM digitization for both lines. Use Value: Eliminates need for discrete SLIC + codec combinations; reduces BOM count by 40% versus discrete solutions. | Use Scenario: Modular line card in carrier-class DSLAM supporting 16–32 POTS lines per shelf. IC Role / Device Role / Timing Role: One PEB 4266 T V1.2 serves two subscriber lines with synchronized PCM framing and shared clock resources. Use Value: Enables 50% higher line density per card slot compared to single-channel SLICOFI-2 implementations. |
| ISDN Terminal Adapter | Enterprise IP-PBX Interface |
Use Scenario: S/T interface termination for legacy ISDN BRI devices connecting to VoIP core. IC Role / Device Role / Timing Role: Provides analog line emulation, D-channel signaling translation, and B-channel PCM mapping. Use Value: Supports simultaneous BRI signaling and voice path with deterministic 125 µs PCM slot alignment. | Use Scenario: Analog station port module in scalable IP-PBX supporting 24–48 extensions. IC Role / Device Role / Timing Role: Dual-line interface with integrated metering, polarity reversal, and message waiting indication (MWI). Use Value: Delivers MWI via polarity reversal and 12/16 kHz bursts without external tone generators or relays. |
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 T V1.2 | Single SLIC channel + SLICOFI-2; lacks second analog interface and dual-line supervision registers | Requires two units for dual-line operation; increases PCB area and power by 2.3× | Select when only one line is needed or board space permits duplication |
| Si3215-D-FM | Single-channel SLIC with integrated dc-dc converter; no native PCM interface - requires external codec | Needs external A-law codec and clock domain bridging; adds latency and jitter | Select when system uses proprietary serial interface or requires integrated power conversion |
Compared with PEB 4265 T V1.2, the PEB 4266 T V1.2 eliminates inter-device synchronization complexity and reduces component count by 33%; versus Si3215-D-FM, it delivers deterministic low-latency PCM integration but requires separate power rails.
Availability
PEB 4266 T V1.2 is available at Aetrix Electronics and suitable for VoIP gateway, DSLAM line card, and enterprise IP-PBX applications requiring stable component supply across multi-year production cycles.
Supply support for PEB 4266 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 ICs, and wired communications solutions, headquartered in Munich.
The DuSLIC product line was engineered for carrier-grade telephony infrastructure, integrating SLIC, codec, and digital signal processing into single-package solutions targeting DSLAMs, VoIP gateways, and ISDN terminal adapters.
FAQ
What is the maximum supported loop length for PEB 4266 T V1.2?
The device supports up to 8 km of 26 AWG twisted-pair copper loop under ITU-T K.21 conditions, enabled by its 72 V DC feed capability and programmable current range (20–60 mA). Loop length verification requires validation against actual line impedance, temperature, and noise margin per DS3 Section 2.3.1.
Does PEB 4266 T V1.2 support Caller ID transmission and reception?
Yes - it implements full Bellcore TR-NWT-000096 physical layer support for both transmission and reception, including FSK modulation at 1200/2400 bps, message buffering, and automatic framing. Caller ID data is handled via dedicated SLICOFI-2 registers INTREG2 and CIS/LEC-MODE per DS3 Sections 2.8.2 and 2.8.2.1.
How is ringing generated - internally or externally?
Ringing is generated internally using balanced topology with ±120 V peak swing, programmable frequency (15–68 Hz), and amplitude control. The device drives standard ringer loads directly without external transformers, though external unbalanced ringing remains supported via pins CITACA/CITACB per DS3 Section 2.5.5.
What clocking modes does the PCM interface support?
The PCM interface supports both single-clocking mode (FSX and CLKX derived from common source) and double-clocking mode (independent FSX and CLKX timing), with configurable hold times tFSC_h1/tFSC_h2 and delay tolerances per DS3 Sections 3.44–3.46. IOM-2 timing is also supported with 1.536 MHz reference.
PEB 4266 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:
- 5V
- Current - Supply:
- 60mA, 90mA
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-DSO-20-5
PEB 4266 T V1.2 FAQ
1.How can I place an order for PEB 4266 T V1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEB 4266 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 4266 T V1.2 reliable?
The price and inventory of PEB 4266 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 4266 T V1.2 is usually 5 days.
3.What payment methods are accepted for PEB 4266 T V1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB 4266 T V1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEB 4266 T V1.2?
PEB 4266 T V1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEB 4266 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 4266 T V1.2?
For technical support, including PEB 4266 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 4266 T V1.2 requirements.
6.How does Aetrix verify that PEB 4266 T V1.2 is sourced from the original manufacturer or authorized distributors?
All PEB 4266 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 4266 T V1.2 meets industry standards.
7.What is the process for return or replacement of PEB 4266 T V1.2?
All PEB 4266 T V1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEB 4266 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 4266 T V1.2 part is unused and in its original packaging.
Return procedure for PEB 4266 T V1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PEB 4266 T V1.2 Tags
-
LMC567CMX/NOPB
Texas Instruments
-
LM567CMX/NOPB
Texas Instruments
-
LM567CM/NOPB
Texas Instruments
-
VSC8531XMW-02
Microchip Technology
-
VSC8531XMW-05
Microchip Technology
-
GPY115C0VI
MaxLinear, Inc.
-
SI32185-A-FMR
Skyworks Solutions Inc.
-
VSC8541XMV-05
Microchip Technology
-
SI32178-B-FM1R
Skyworks Solutions Inc.
-
GPY215C0VI
MaxLinear, Inc.
-
CPC7514ZTR
Littelfuse Inc.
-
VSC8502XML-03
Microchip Technology
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
