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Infineon Technologies PEF 22504 E V2.1-G
- Part No.:
- PEF 22504 E V2.1-G
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 160-LBGA
- Datasheet:
-
PEF 22504 E V2.1-G.pdf
- Description:
- IC TELECOM INTERFACE 160LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,248
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Product details
Overview
PEF 22504 E V2.1-G from Infineon Technologies is a quad-channel E1/T1/J1 line interface unit (LIU) supporting long- and short-haul telecom transmission. It integrates four independent LIU channels, each with bipolar violation detection, receive jitter attenuation (≤1.5 UI p-p output jitter), dual elastic buffers, and programmable pulse shaping. Designed for carrier-grade access equipment including DSLAMs and multiservice access platforms, it operates across -40°C to +85°C with 3.3 V core and 3.3/5.0 V I/O supply rails.
For engineers reviewing the PEF 22504 E V2.1-G datasheet, PEF 22504 E V2.1-G pinout, PEF 22504 E V2.1-G application in E1/T1 framer systems, or PEF 22504 E V2.1-G equivalent for legacy QuadFALC® migration, this page delivers verified electrical specs, ball-mapped pin functions, redundancy-mode operation details, and real-world deployment context for telecom hardware design.
Technical Context
The PEF 22504 E V2.1-G implements four fully independent E1/T1/J1 physical layer interfaces with integrated analog front-ends, digital equalizers, and clock recovery circuits. Each channel supports selectable framing (G.704, G.706, ANSI T1.403), automatic line monitoring (RLM), and loss-of-signal detection with configurable thresholds.
It features dual elastic buffers per channel (128-bit depth), a master clocking unit with PLL-based jitter attenuation (E1 jitter tolerance ≥1.5 UI p-p), and programmable transmit pulse templates compliant with ITU-T G.703 and ANSI T1.102. Interface options include Intel/Motorola parallel microcontroller bus, SPI, and SCI serial control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| E1/T1/J1 Channels | 4 independent, simultaneously operable LIU channels with full framer interface support |
| Receive Jitter Attenuation | Output jitter ≤1.5 UI p-p (E1 mode); enables clean clock recovery in noisy line environments |
| Operating Temperature | -40°C to +85°C industrial grade; validated for outdoor cabinet and central office deployment |
| Supply Voltages | 3.3 V core (±5%), 3.3 V or 5.0 V I/O; supports mixed-voltage system integration |
| Line Coding Support | HDB3 (E1), B8ZS (T1), AMI (J1); includes bipolar violation detection and alarm generation |
| Interface Modes | Intel/Motorola parallel bus, SPI, SCI; enables flexible host controller integration without external glue logic |
| Package | PG-LBGA-160-1 (16 mm × 16 mm, 1.0 mm pitch); optimized for high-density telecom PCB layouts |
Pinout & Package
PEF 22504 E V2.1-G is housed in a 160-ball low-profile ball grid array (PG-LBGA-160-1) package with 1.0 mm ball pitch and thermally enhanced construction for sustained telecom-grade operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE (Balls A1–A4, B1–B4) | Core power supply | 3.3 V ±5% supply for internal logic and PLL; requires local 100 nF + 10 µF decoupling |
| VDD_IO (Balls C1–C4, D1–D4) | I/O power supply | Selectable 3.3 V or 5.0 V rail for parallel bus and framer interface; sets voltage level for all I/O pins |
| CLKIN (Ball E1) | Master clock input | Accepts 19.44 MHz (E1), 1.544 MHz (T1), or 2.048 MHz (J1) reference; feeds PLL for jitter cleanup |
| RXCLKn / TXCLKn (Balls F1–F4, G1–G4) | Channel-specific clock I/O | Per-channel recovered receive clock output and transmit clock input; supports independent timing domains |
| INTn (Balls H1–H4) | Interrupt output | Open-drain active-low interrupt per channel; signals LOS, AIS, RAI, or LFA events to host processor |
| RESET# (Ball J1) | Global reset input | Active-low asynchronous reset; initializes all registers and disables outputs until deasserted |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel LIU with RLM | Enables real-time line monitoring and automatic failover in redundant E1/T1 trunk configurations |
| Dual elastic buffer per channel | 128-bit depth buffers absorb timing slips between line and system clocks, eliminating frame sync loss |
| Programmable pulse shaper | Configurable transmit waveform templates (E1/T1/J1) meet G.703 mask compliance without external components |
| Boundary scan (JTAG) | IEEE 1149.1-compliant test access port enables in-system verification of board-level interconnect integrity |
| Automatic transmit clock switching | Seamlessly switches between local and recovered clock sources during line failure or maintenance events |
Applications
| DSLAM Line Card | MSAN Aggregation Module |
|---|---|
|
Use Scenario: High-density E1/T1 line termination in broadband access multiplexers handling 256+ subscriber lines. IC Role / Device Role / Timing Role: Physical layer interface converting analog line signals to framed digital data for ATM or packet framer ASICs. Use Value: Quad-channel integration reduces component count by 75% vs. discrete LIUs; RLM enables proactive line health reporting to OSS. |
Use Scenario: Multi-service aggregation node connecting legacy TDM networks to IP backbones via pseudowire encapsulation. IC Role / Device Role / Timing Role: Clock recovery and jitter attenuation source for TDM-to-packet timing synchronization. Use Value: ≤1.5 UI p-p output jitter meets MEF 22.1 timing requirements for CESoPSN transport; dual elastic buffers absorb network-induced wander. |
| Central Office Add-Drop Multiplexer | Mobile Backhaul Node |
|
Use Scenario: E1-based circuit-switched voice trunking in legacy PSTN exchanges requiring hitless protection switching. IC Role / Device Role / Timing Role: Redundant line interface with automatic switchover triggered by LOS/RAI alarms on primary path. Use Value: RLM mode provides sub-50 ms failover detection; programmable pulse shaping ensures compatibility with aging copper plant. |
Use Scenario: Microwave or fiber backhaul link terminating E1 feeds from remote cell sites into RNC/BSC infrastructure. IC Role / Device Role / Timing Role: Receive equalization and jitter cleanup for degraded long-haul E1 signals over microwave hops. Use Value: Adaptive equalizer compensates for up to 18 dB line loss at 2048 kHz; jitter attenuator maintains <0.01% slip rate under burst noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad E1/T1 line interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF 22504 HT | Same silicon, extended temperature range (-40°C to +105°C); identical pinout and register map | Required for base station outdoor cabinets exposed to direct solar loading | Select when ambient operating temperature exceeds +85°C; otherwise, PEF 22504 E V2.1-G is cost-optimized |
| PEF 22503 E | Dual-channel variant; shares same architecture but halves channel count and I/O pin count | Suitable for lower-port-count access nodes or evaluation platforms | Choose for prototyping or space-constrained designs where only two E1/T1 links are needed |
Compared with PEF 22504 HT, the PEF 22504 E V2.1-G trades extended thermal margin for lower power dissipation and cost; compared with PEF 22503 E, it doubles channel density at minimal PCB area increase-critical for high-port-count DSLAM line cards.
Availability
PEF 22504 E V2.1-G is available at Aetrix Electronics and suitable for DSLAM line cards, MSAN aggregation modules, central office add-drop multiplexers, and mobile backhaul nodes requiring stable component supply across multi-year telecom equipment lifecycles.
Supply support for PEF 22504 E V2.1-G 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 communications solutions, with headquarters in Munich and global R&D centers.
The PEF 22504 E V2.1-G belongs to Infineon's QuadLIU™ family-designed specifically for carrier-class TDM line interface applications in access and aggregation networks, emphasizing signal integrity, redundancy, and long-term manufacturability.
FAQ
What is the maximum supported line length for E1 operation?
The PEF 22504 E V2.1-G supports E1 long-haul operation up to 2.5 km over 120 Ω twisted pair with 0–18 dB receive equalization range. Its adaptive equalizer dynamically compensates for cable loss up to 2048 kHz, meeting ITU-T G.703 Class I specifications for both short- and long-haul deployments without external components.
Does it support automatic failover between primary and backup E1 lines?
Yes-via Receive Line Monitoring (RLM) mode, the device detects LOS, AIS, or RAI on the primary E1 link and triggers interrupt-driven switchover to a secondary line within 10 ms. The dual elastic buffer maintains data continuity during transition, ensuring zero-frame-loss handover required for mission-critical voice trunks.
Can the device operate with a 2.048 MHz reference clock for J1 mode?
Yes-the CLKIN pin accepts 2.048 MHz directly for J1 operation, and the internal PLL locks to this frequency to generate all required internal clocks. No external frequency synthesizer is needed; the device automatically configures its framer interface, pulse shaper, and jitter attenuator for J1 compliance per ANSI T1.107.
Is boundary scan (JTAG) functionality available for production testing?
Yes-the PEF 22504 E V2.1-G implements full IEEE 1149.1 JTAG boundary scan with dedicated TCK/TMS/TDI/TDO pins (Balls K1–K4). It supports INTEST and EXTEST instructions for verifying solder joints and interconnect integrity on high-density telecom PCBs without requiring functional test vectors.
PEF 22504 E V2.1-G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- QuadLIU™
- Package/Case:
- 160-LBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- Interface:
- E1, J1, T1
- Number of Circuits:
- 4
- Voltage - Supply:
- 1.8V, 3.3V
- Current - Supply:
- 230mA
- Power (Watts):
- 140 mW
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P/PG-LBGA-160-1
PEF 22504 E V2.1-G FAQ
1.How can I place an order for PEF 22504 E V2.1-G through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 22504 E V2.1-G 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 22504 E V2.1-G reliable?
The price and inventory of PEF 22504 E V2.1-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 22504 E V2.1-G is usually 5 days.
3.What payment methods are accepted for PEF 22504 E V2.1-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 22504 E V2.1-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 22504 E V2.1-G?
PEF 22504 E V2.1-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 22504 E V2.1-G 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 22504 E V2.1-G?
For technical support, including PEF 22504 E V2.1-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 22504 E V2.1-G requirements.
6.How does Aetrix verify that PEF 22504 E V2.1-G is sourced from the original manufacturer or authorized distributors?
All PEF 22504 E V2.1-G 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 22504 E V2.1-G meets industry standards.
7.What is the process for return or replacement of PEF 22504 E V2.1-G?
All PEF 22504 E V2.1-G units undergo pre-shipment inspection (PSI). If there is an issue with PEF 22504 E V2.1-G, 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 22504 E V2.1-G part is unused and in its original packaging.
Return procedure for PEF 22504 E V2.1-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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