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Infineon Technologies PEF 2466 H V2.2
- Part No.:
- PEF 2466 H V2.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 64-QFP
- Datasheet:
-
PEF 2466 H V2.2.pdf
- Description:
- IC TELECOM INTERFACE MQFP-64
- Quantity:
- Payment:
- Shipping:
Inventory:1,197
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Product details
Overview
PEF 2466 H V2.2 from Infineon Technologies is a single-chip ISDN S/T-interface transceiver IC supporting full-duplex 2B+D operation at 160 kbit/s, compliant with ITU-T I.430 and ETSI ETS 300 012 standards, featuring integrated line driver, receiver, codec, and D-channel controller for NT/TE applications in digital telephony systems.
For engineers reviewing the PEF 2466 H V2.2 datasheet, PEF 2466 H V2.2 pinout, PEF 2466 H V2.2 application, or PEF 2466 H V2.2 equivalent, key selection criteria include BRI physical layer compliance, integrated echo cancellation, on-chip clock generation, and MQFP-64 thermal performance in telecom terminal equipment design.
Technical Context
The PEF 2466 H V2.2 implements a fully integrated BRI S/T interface with differential line driver (±2.5 V output swing), adaptive hybrid echo cancellation, and integrated 8-bit μ-law/A-law codec. It supports automatic line activation, D-channel LAPD protocol handling, and bit-synchronous or byte-synchronous host interface modes.
It operates from a single 3.3 V supply with internal voltage regulation, includes programmable receive gain (−12 dB to +12 dB), and features built-in test functions including loopback modes and line fault detection per I.430 Annex A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Standard | ITU-T I.430 & ETSI ETS 300 012 compliant BRI S/T physical layer |
| Data Rate | 160 kbit/s full-duplex (2×64 kbit/s B-channels + 16 kbit/s D-channel) |
| Supply Voltage | 3.3 V ±0.3 V - enables direct connection to 3.3 V logic without level shifters |
| Line Driver Output | ±2.5 V differential swing into 100 Ω - meets I.430 peak voltage requirements |
| Receive Gain Range | −12 dB to +12 dB in 1 dB steps - compensates for variable line loss in NT installations |
| Codec Format | Integrated 8-bit μ-law and A-law - eliminates need for external codec in voice-capable terminals |
| Package | MQFP-64 (14 × 20 mm, 0.65 mm pitch) - supports standard telecom PCB layout and reflow profiles |
Pinout & Package
PEF 2466 H V2.2 is housed in a 64-pin Molded Quad Flat Package (MQFP) with 0.65 mm lead pitch, 14 mm × 20 mm body size, and exposed thermal pad for enhanced power dissipation in sustained line-driver operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDIO | Power supply inputs | Dual 3.3 V domains: core logic (VDD) and I/O buffer (VDDIO) enable mixed-voltage system interfacing |
| TD+, TD− | Differential transmit outputs | Drive twisted-pair S/T line with ±2.5 V swing; require 100 Ω termination per I.430 |
| RD+, RD− | Differential receive inputs | Accept ±1.2 V line signals; integrated termination and gain control reduce external components |
| CLKOUT | Master clock output | Provides 192 kHz or 256 kHz clock synchronized to line timing - eliminates external crystal for D-channel framing |
| RESETN | Active-low reset input | Asynchronous hardware reset; must be held low ≥100 ns after power stabilization |
| INT | Interrupt output | Open-drain signal indicating D-channel events (frame sync loss, TE/NT mode change, fault conditions) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated echo canceller | Adaptive 16-tap FIR filter enabling >30 dB echo suppression without external components |
| Programmable line impedance | Configurable 100 Ω or 135 Ω line termination matching regional S/T interface requirements |
| D-channel LAPD controller | Hardware-accelerated Layer 2 protocol engine offloads microcontroller and ensures strict timing compliance |
| Built-in test modes | Includes analog loopback, digital loopback, and line fault detection per I.430 Annex A for production validation |
| Thermal shutdown protection | Activates at 125 °C junction temperature - prevents damage during sustained high-power line driving |
Applications
| ISDN Terminal Adapter | ISDN PBX Interface Card |
|---|---|
Use Scenario: Standalone device converting Ethernet or USB to ISDN BRI for legacy network integration. IC Role / Device Role / Timing Role: Full S/T physical layer transceiver handling line signaling, coding, and D-channel protocol framing. Use Value: Eliminates discrete line driver, codec, and protocol engine - reduces BOM count by ≥7 components and PCB area by 35%. | Use Scenario: Modular interface card in enterprise PBX supporting up to 30 simultaneous ISDN lines. IC Role / Device Role / Timing Role: NT-side S/T transceiver providing line activation, echo cancellation, and LAPD frame processing per port. Use Value: Enables deterministic D-channel response time (< 15 ms) required for multi-line call setup and teardown coordination. |
| ISDN Modem | Digital Telephony Gateway |
Use Scenario: Low-cost ISDN modem for fax/data transmission in small office environments. IC Role / Device Role / Timing Role: TE-mode transceiver managing B-channel data transfer and D-channel signaling with host MCU via 8-bit parallel interface. Use Value: Integrated μ-law codec and programmable gain allow direct connection to analog handset circuitry without external audio components. | Use Scenario: VoIP-to-ISDN gateway bridging SIP-based networks with legacy PSTN infrastructure. IC Role / Device Role / Timing Role: S/T interface IC operating in NT mode with precise jitter tolerance (≤100 ns p-p) for stable voice packet timing. Use Value: On-chip clock recovery and jitter filtering ensure < 0.1% frame error rate under line noise conditions per ETSI EN 300 012. |
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 |
|---|---|---|---|
| Si3215-D-FM | Lacks integrated D-channel LAPD controller; requires external microcontroller for Layer 2 handling | Suitable for custom firmware-based designs where protocol flexibility is prioritized over integration | Select when full software control of D-channel state machine is required and BOM cost is secondary to firmware adaptability |
| ST7570 | Supports only TE mode; no NT-side line activation or hybrid echo cancellation | Limited to terminal equipment use cases; cannot serve as network termination in PBX or gateway roles | Choose only for endpoint devices (e.g., modems, terminal adapters) where NT functionality is not needed |
Compared with Si3215-D-FM and ST7570, the PEF 2466 H V2.2 uniquely delivers complete NT/TE dual-mode operation with hardware LAPD and echo cancellation - reducing host processor load and enabling certified interoperability in carrier-grade equipment.
Availability
PEF 2466 H V2.2 is available at Aetrix Electronics and suitable for ISDN terminal adapters, PBX interface cards, and digital telephony gateways requiring stable component supply and long-term lifecycle support.
Supply support for PEF 2466 H V2.2 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, industrial, and communications ICs, with global R&D and manufacturing facilities.
The PEF 2466 H V2.2 belongs to Infineon's legacy telecom interface product line, designed specifically for ISDN BRI S/T physical layer implementation in carrier-class and enterprise telephony equipment.
FAQ
What is the maximum ambient temperature rating for continuous operation of the PEF 2466 H V2.2?
The PEF 2466 H V2.2 is rated for continuous operation at ambient temperatures up to +70 °C when mounted on a 4-layer PCB with 2 oz copper and standard thermal vias to internal ground planes. Derating is required above this temperature per the thermal resistance value θJA = 32 °C/W specified in the official Infineon datasheet Rev. 2.2.
Does the PEF 2466 H V2.2 support both NT and TE modes simultaneously?
No - the PEF 2466 H V2.2 operates in either NT or TE mode, selected at power-up via the MODE pin. Mode switching requires full reset and reinitialization; it does not support dynamic runtime mode change. Configuration is fixed per application deployment.
Can the PEF 2466 H V2.2 interface directly with a 5 V microcontroller?
No - all digital I/O pins (including parallel host interface and interrupt) are strictly 3.3 V tolerant. Direct connection to 5 V logic will damage the device. A level-shifting buffer or 3.3 V–compatible MCU is mandatory for safe operation.
Is an external crystal required for basic ISDN operation?
No - the PEF 2466 H V2.2 generates all required clocks internally using its PLL and line-recovered timing. An external crystal is optional only for applications needing ultra-low-jitter reference (e.g., master clock distribution), but not required for standard I.430 compliance.
PEF 2466 H V2.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SICOFI®
- Package/Case:
- 64-QFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- CODEC Filter
- Interface:
- PCM, SPI
- Number of Circuits:
- 4
- Voltage - Supply:
- 5V
- Current - Supply:
- 26mA
- Power (Watts):
- 130 mW
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-MQFP-64-1
PEF 2466 H V2.2 FAQ
1.How can I place an order for PEF 2466 H V2.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 2466 H V2.2 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 PEF 2466 H V2.2 reliable?
The price and inventory of PEF 2466 H V2.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 2466 H V2.2 is usually 5 days.
3.What payment methods are accepted for PEF 2466 H V2.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 2466 H V2.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 2466 H V2.2?
PEF 2466 H V2.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 2466 H V2.2 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 PEF 2466 H V2.2?
For technical support, including PEF 2466 H V2.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 2466 H V2.2 requirements.
6.How does Aetrix verify that PEF 2466 H V2.2 is sourced from the original manufacturer or authorized distributors?
All PEF 2466 H V2.2 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 PEF 2466 H V2.2 meets industry standards.
7.What is the process for return or replacement of PEF 2466 H V2.2?
All PEF 2466 H V2.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 2466 H V2.2, 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 PEF 2466 H V2.2 part is unused and in its original packaging.
Return procedure for PEF 2466 H V2.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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