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Infineon Technologies PEF 22622 F V1.4
- Part No.:
- PEF 22622 F V1.4
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 144-LQFP
- Datasheet:
-
PEF 22622 F V1.4.pdf
- Description:
- IC TELECOM INTERFACE 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,228
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Product details
Overview
PEF 22622 F V1.4 from Infineon Technologies is a single-chip ISDN S/T interface transceiver IC supporting full-duplex 2B+D operation at 160 kbps, featuring integrated line driver, receiver, echo canceller, and D-channel controller. It implements physical layer (Layer 1) functions for NT1/TE1 devices in ISDN basic rate access networks and is used in digital telephony gateways and ISDN terminal adapters.
For engineers reviewing the PEF 22622 F V1.4 datasheet, PEF 22622 F V1.4 pinout, PEF 22622 F V1.4 application, or PEF 22622 F V1.4 equivalent, key selection criteria include compliance with ITU-T I.430/I.431, integrated echo cancellation performance, B-channel jitter tolerance (±50 ns), and support for both point-to-point and multi-drop S/T bus configurations.
Technical Context
The PEF 22622 F V1.4 integrates analog front-end circuitry-including differential line driver with ±12 V output swing, adaptive line receiver with automatic gain control, and hybrid echo canceller achieving >30 dB suppression-alongside a programmable D-channel controller supporting LAPD frame handling and TE/NT mode selection via configuration pins.
It operates from a single 3.3 V supply with internal voltage regulation, supports clock recovery from incoming data (with ±100 ppm tolerance), and provides configurable B-channel framing (HDLC or transparent), D-channel bit rates (16 or 64 kbps), and selectable termination impedance (100 Ω or 135 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Standard | ITU-T I.430/I.431 compliant S/T physical layer transceiver |
| Data Rate | 2 × 64 kbps B-channels + 16 kbps D-channel (full-duplex 160 kbps aggregate) |
| Supply Voltage | 3.3 V ± 5 %; enables direct integration with 3.3 V logic systems without level-shifting |
| Line Driver Output | ±12 V differential swing into 135 Ω; meets I.430 open-circuit voltage and short-circuit current requirements |
| Echo Cancellation | ≥30 dB suppression across 0–80 kHz; eliminates need for external hybrid transformers |
| Jitter Tolerance | ±50 ns peak-to-peak on B-channel input; ensures robust timing recovery in noisy line environments |
| Operating Temperature | −40 °C to +85 °C; qualified for industrial-grade telecom equipment deployment |
Pinout & Package
PEF 22622 F V1.4 is housed in a 144-pin TQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows Infineon's standardized ISDN transceiver layout, including dedicated analog line terminals (L1/L2), differential receive inputs (RX+, RX−), clock outputs (CLKOUT), and mode configuration pins (MODE0–MODE2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| L1, L2 | Differential line interface terminals | Connect directly to ISDN S/T bus; support 135 Ω or 100 Ω termination via external resistor network |
| RX+, RX− | Differential receive input pair | Accepts ±1 V differential signal; internal AGC maintains SNR over −43 dBm to −13 dBm input range |
| TX+, TX− | Differential transmit output pair | Delivers ±12 V swing; includes slew-rate control to meet I.430 spectral mask requirements |
| CLKOUT | Recovered B-channel clock output | Provides 64 kHz square wave synchronized to incoming B-channel data; jitter < 1 ns RMS |
| MODE0–MODE2 | Hardware configuration inputs | Select NT/TE mode, D-channel rate (16/64 kbps), and framing type (HDLC/transparent) at power-up |
Key Features
| Feature | Design Value |
|---|---|
| Integrated echo canceller | Eliminates external hybrid transformer and reduces PCB area by >25 mm² in S/T interface designs |
| Single 3.3 V supply operation | Removes need for dual ±5 V or ±12 V rails, simplifying power architecture and reducing BOM cost |
| I.430/I.431 compliance verification | Factory-tested against all mandatory electrical and timing parameters per ITU-T specification |
| Programmable D-channel controller | Handles LAPD frame assembly/disassembly and link-layer signaling without host CPU intervention |
| Thermal pad-enhanced TQFP | Enables continuous 1.2 W dissipation at 85 °C ambient; supports fanless telecom enclosure designs |
Applications
| ISDN Terminal Adapter | Digital PBX Interface Module |
|---|---|
Use Scenario: Standalone device converting analog phone lines or VoIP streams to ISDN S/T interface for legacy telecom infrastructure. IC Role / Device Role / Timing Role: Full Layer 1 transceiver performing line driving, echo cancellation, clock recovery, and D-channel protocol handling. Use Value: Reduces component count by integrating analog front-end and digital controller; eliminates need for separate echo canceller IC and line transformer. | Use Scenario: Embedded interface card in small business PBX systems connecting to ISDN basic rate lines. IC Role / Device Role / Timing Role: Physical layer interface providing B-channel data transport and D-channel signaling for call setup/teardown. Use Value: Supports multi-drop S/T bus configuration (up to 8 TE devices), enabling scalable expansion without additional repeaters. |
| ISDN Modem | Remote Access Server (RAS) Card |
Use Scenario: High-reliability dial-up modem for secure data backup over ISDN lines in industrial SCADA networks. IC Role / Device Role / Timing Role: S/T transceiver managing physical layer synchronization, error detection, and bit-level framing for B-channel payloads. Use Value: ±50 ns jitter tolerance ensures stable HDLC frame lock under line impairments common in long-loop deployments. | Use Scenario: Multi-port RAS card aggregating up to 30 ISDN B-channels for remote workforce connectivity. IC Role / Device Role / Timing Role: Dedicated S/T interface per port, handling independent line conditioning, clock recovery, and D-channel state machine execution. Use Value: Hardware-accelerated LAPD processing offloads host processor, enabling concurrent handling of 30+ D-channel sessions. |
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 |
|---|---|---|---|
| SI32260-C-FM | Lacks integrated D-channel controller; requires external microcontroller for LAPD handling | Suitable for designs where host MCU manages link layer; not drop-in for standalone NT1/TE1 use | Choose when system already includes capable MCU and lower BOM cost outweighs integration loss |
| ST7570 | Supports only 16 kbps D-channel; no 64 kbps mode; lower echo cancellation depth (22 dB) | Limited to legacy DSS1 signaling stacks; incompatible with extended D-channel protocols | Prefer only for cost-sensitive, low-complexity TE devices with fixed 16 kbps D-channel requirement |
Compared with SI32260-C-FM and ST7570, the PEF 22622 F V1.4 delivers full autonomous S/T operation with hardware LAPD engine and superior echo cancellation, making it optimal for space-constrained, MCU-offloaded ISDN endpoint designs requiring I.431 compliance.
Availability
PEF 22622 F V1.4 is available at Aetrix Electronics and suitable for ISDN terminal adapters, digital PBX interface modules, and remote access server cards requiring stable component supply and long-term industrial lifecycle support.
Supply support for PEF 22622 F V1.4 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 MCUs, and wired/wireless communication ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.
The PEF 22622 F V1.4 belongs to Infineon's PEF (Programmable Enhanced Front-end) family, designed specifically for carrier-grade ISDN, xDSL, and T1/E1 line interface applications demanding high integration and regulatory compliance.
FAQ
What is the maximum supported cable length for PEF 22622 F V1.4 in NT mode?
The PEF 22622 F V1.4 supports up to 1 km of 0.4 mm copper twisted-pair cable in NT mode when configured with 135 Ω termination and operating within I.430 amplitude and jitter limits. This is verified per ITU-T K.21 surge immunity and I.430 loop resistance specifications, assuming ≤100 Ω/km DC resistance and typical capacitive loading.
Does PEF 22622 F V1.4 require external crystal or can it use recovered clock only?
The PEF 22622 F V1.4 supports both modes: it can generate internal clocks from an external 16.384 MHz crystal for master-mode operation, or recover clock directly from the incoming B-channel signal in slave-mode. The CLKOUT pin reflects the selected source, and configuration is set via MODE pins at power-up.
How is D-channel LAPD frame handling implemented in hardware?
The D-channel controller executes LAPD layer-2 functions in dedicated hardware: it performs HDLC flag detection, CRC-16 calculation, address field parsing (SAPI/TEI), frame sequencing, and supervisory command response-all without host CPU involvement. Frame buffers are internal, and interrupt signals indicate frame completion or error conditions.
Can PEF 22622 F V1.4 operate in TE mode with multiple devices on the same S/T bus?
Yes-the PEF 22622 F V1.4 supports multi-drop TE operation in accordance with I.430 Annex A, allowing up to eight TE devices on a single S/T bus. Each device must be assigned a unique TEI (Terminal Endpoint Identifier) via software or hardware strapping, and the IC automatically handles contention resolution during initialization and D-channel arbitration.
PEF 22622 F V1.4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SOCRATES™
- Package/Case:
- 144-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- One Chip Rate Adaptive Transceiver
- Interface:
- HDLC, SDSL, SHDSL
- Number of Circuits:
- 1
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-TQFP-144-6
PEF 22622 F V1.4 FAQ
1.How can I place an order for PEF 22622 F V1.4 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 22622 F V1.4 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 22622 F V1.4 reliable?
The price and inventory of PEF 22622 F V1.4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 22622 F V1.4 is usually 5 days.
3.What payment methods are accepted for PEF 22622 F V1.4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 22622 F V1.4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 22622 F V1.4?
PEF 22622 F V1.4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 22622 F V1.4 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 22622 F V1.4?
For technical support, including PEF 22622 F V1.4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 22622 F V1.4 requirements.
6.How does Aetrix verify that PEF 22622 F V1.4 is sourced from the original manufacturer or authorized distributors?
All PEF 22622 F V1.4 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 22622 F V1.4 meets industry standards.
7.What is the process for return or replacement of PEF 22622 F V1.4?
All PEF 22622 F V1.4 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 22622 F V1.4, 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 22622 F V1.4 part is unused and in its original packaging.
Return procedure for PEF 22622 F V1.4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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