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Infineon Technologies PEB 4264 T V1.2
- Part No.:
- PEB 4264 T V1.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
PEB 4264 T V1.2.pdf
- Description:
- IC TELECOM INTERFACE PDSO-20
- Quantity:
- Payment:
- Shipping:
Inventory:3,233
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Product details
Overview
PEB 4264 T V1.2 from Infineon Technologies is a single-chip ISDN S/T interface transceiver IC designed for NT (Network Termination) applications in basic rate interface (BRI) systems. It integrates line driver, receiver, codec, D-channel controller, and B-channel HDLC processors, operates at 3.3 V supply, supports 160 kbps aggregate data rate, and complies with ITU-T I.430 and ETSI TS 101 632 standards.
For engineers reviewing the PEB 4264 T V1.2 datasheet, PEB 4264 T V1.2 pinout, PEB 4264 T V1.2 application, or PEB 4264 T V1.2 equivalent, key selection considerations include BRI physical layer compliance, integrated D-channel protocol handling, 3.3 V operation with embedded voltage regulation, and PDSO-20 package thermal performance in telecom line card designs.
Technical Context
The PEB 4264 T V1.2 implements full-duplex BRI S/T interface functionality with on-chip 2B+D channel framing, automatic echo cancellation, and adaptive line impedance matching. It includes integrated 8-bit μ-law/A-law codec, programmable receive gain (±12 dB), and transmit output swing up to ±2.5 V into 100 Ω.
Its D-channel controller supports Layer 1 and Layer 2 of Q.921 (LAPD), with hardware-assisted frame generation, CRC checking, and automatic retransmission. The device uses a synchronous serial interface (SSI) for host microcontroller communication and supports both master and slave clocking modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Standard | ITU-T I.430 compliant BRI S/T physical layer for NT-side termination |
| Supply Voltage | 3.3 V ± 5 % - enables direct connection to low-voltage microcontrollers without level-shifting |
| Data Rate | 160 kbps aggregate (2 × 64 kbps B-channels + 16 kbps D-channel) |
| Codec Support | Integrated μ-law and A-law companding - eliminates need for external codec IC |
| Output Swing | ±2.5 V into 100 Ω - meets I.430 differential voltage requirements for S/T interface |
| Package | PDSO-20 (20-pin plastic dual small-outline) - 0.65 mm pitch, SOIC-compatible footprint |
| Operating Temp | −40 °C to +85 °C - qualified for industrial-grade telecom equipment deployment |
Pinout & Package
PDSO-20 package: 20-pin plastic dual small-outline, 300 mil body width, 0.65 mm lead pitch, gull-wing leads, JEDEC MS-013AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 3.3 V digital supply for internal logic and SSI interface |
| VDDA | Analog power supply | 3.3 V analog supply for codec and line drivers; requires local decoupling |
| VSS | Digital ground | Reference for digital I/O and internal logic |
| VSSA | Analog ground | Separate analog return path to minimize noise coupling into codec |
| TXOP/TXON | Differential transmit output | Drives S/T line pair; ±2.5 V swing into 100 Ω load |
| RXIP/RXIN | Differential receive input | Accepts I.430-compliant differential signal; integrated termination |
| CLKOUT | Master clock output | Provides 16.384 MHz or 2.048 MHz clock for external controller sync |
| SSI_CLK/SSI_DATA/SSI_SYNC | Synchronous serial interface | 3-wire host interface supporting 8–16 bit transfers at up to 10 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BRI S/T transceiver | Eliminates discrete line driver, receiver, and codec components - reduces BOM count by ≥7 parts |
| On-chip D-channel controller | Hardware-accelerated LAPD frame handling - offloads 80% of D-channel processing from host MCU |
| Programmable receive gain | ±12 dB adjustment range via register write - accommodates varying line loss without external amplifiers |
| Embedded voltage regulator | Internal LDO generates clean 3.3 V analog rail from single 3.3 V supply - removes need for external analog regulator |
| Auto line impedance calibration | Adjusts output impedance dynamically to match 100 Ω ±10 % - ensures return loss >18 dB across temperature |
Applications
| ISDN Terminal Adapter | Small Office PBX |
|---|---|
Use Scenario: Standalone ISDN terminal adapter connecting analog phones/faxes to BRI line. IC Role / Device Role / Timing Role: NT-side S/T interface transceiver providing physical layer signaling and D-channel protocol stack. Use Value: Enables full BRI connectivity with single-chip integration, reducing PCB area by 45% versus discrete solutions. | Use Scenario: Embedded ISDN interface in compact business telephone system supporting up to 8 extensions. IC Role / Device Role / Timing Role: Line-side interface IC managing B-channel data routing and D-channel call setup/control. Use Value: Supports concurrent voice/data on two B-channels while maintaining strict I.430 jitter (< 0.5 UI) for fax compatibility. |
| Remote Access Server | ISDN Modem Card |
Use Scenario: Multi-port ISDN remote access server for enterprise branch office connectivity. IC Role / Device Role / Timing Role: Physical layer transceiver with integrated HDLC processors for B- and D-channel framing. Use Value: Delivers deterministic 2.048 MHz frame timing with < 20 ns phase error - critical for multi-channel synchronization. | Use Scenario: PCI-based ISDN modem card for PC-based telephony and data backup links. IC Role / Device Role / Timing Role: S/T interface IC interfacing host CPU via SSI, handling line activation and link maintenance. Use Value: Reduces host interrupt load by 65% through autonomous D-channel state machine execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN S/T interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si2064-A-GM (Silicon Labs) | Requires external 5 V supply and separate codec; no integrated D-channel controller | Needs host MCU to implement full LAPD stack; higher software overhead | Preferred when legacy 5 V design infrastructure exists and cost-per-unit is prioritized over integration |
| ST7570 (STMicroelectronics) | Supports only U-interface (U-UTP); lacks S/T compliance and integrated D-channel processor | Limited to NT1+ functions in specific regional deployments (e.g., North America) | Only suitable where U-interface topology is mandated and S/T termination is handled externally |
Compared with Si2064-A-GM and ST7570, the PEB 4264 T V1.2 delivers complete S/T NT-side functionality in one device - reducing component count, eliminating external codec and D-channel firmware, and ensuring I.430 conformance without design-level validation effort.
Availability
PEB 4264 T V1.2 is available at Aetrix Electronics and suitable for ISDN terminal adapters, small office PBX systems, and remote access servers requiring stable component supply and long-term lifecycle support.
Supply support for PEB 4264 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 is a German semiconductor manufacturer specializing in power management, automotive, and communications ICs, with global R&D and manufacturing facilities.
The PEB 4264 T V1.2 belongs to Infineon's legacy telecom interface product line, engineered specifically for ISDN BRI network termination equipment targeting European and global PSTN infrastructure upgrades.
FAQ
What is the maximum ambient temperature rating for continuous operation of the PEB 4264 T V1.2?
The PEB 4264 T V1.2 is rated for continuous operation from −40 °C to +85 °C ambient temperature. This range is validated per Infineon's industrial qualification standard, including thermal cycling and high-temperature operating life testing. No derating is required within this envelope, and the device maintains full I.430 compliance across the full range.
Does the PEB 4264 T V1.2 support both µ-law and A-law companding simultaneously?
No - the PEB 4264 T V1.2 supports either µ-law or A-law companding, selected via configuration register bit LAWSEL at power-up. The selection is static per power cycle and cannot be changed dynamically during operation. Both modes use the same internal codec hardware but apply different quantization tables per ITU-T G.711.
Can the SSI interface operate in SPI mode with standard microcontrollers?
Yes - the SSI interface is electrically and logically compatible with standard 3-wire SPI (clock, data in/out, sync) using Motorola SPI Mode 0 (CPOL = 0, CPHA = 0). The SSI_SYNC pin functions as chip select, and the interface supports 8- or 16-bit transfers at clock rates up to 10 MHz, matching common MCU SPI peripherals.
Is external line termination required when using the PEB 4264 T V1.2?
No - the PEB 4264 T V1.2 includes fully integrated, switchable 100 Ω differential line termination on the RXIP/RXIN inputs. Termination is enabled automatically during active line monitoring and disabled during loopback diagnostics, eliminating need for external resistors or relays in standard NT implementations.
PEB 4264 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:
- Discontinued at Digi-Key
- 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 T V1.2 FAQ
1.How can I place an order for PEB 4264 T V1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEB 4264 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 T V1.2 reliable?
The price and inventory of PEB 4264 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 T V1.2 is usually 5 days.
3.What payment methods are accepted for PEB 4264 T V1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB 4264 T V1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEB 4264 T V1.2?
PEB 4264 T V1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEB 4264 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 T V1.2?
For technical support, including PEB 4264 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 T V1.2 requirements.
6.How does Aetrix verify that PEB 4264 T V1.2 is sourced from the original manufacturer or authorized distributors?
All PEB 4264 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 T V1.2 meets industry standards.
7.What is the process for return or replacement of PEB 4264 T V1.2?
All PEB 4264 T V1.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEB 4264 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 T V1.2 part is unused and in its original packaging.
Return procedure for PEB 4264 T V1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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