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Infineon Technologies PEF 22624 E V2.2-G
- Part No.:
- PEF 22624 E V2.2-G
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 324-LBGA
- Datasheet:
-
PEF 22624 E V2.2-G.pdf
- Description:
- IC TELECOM INTERFACE 324-LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
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Product details
Overview
PEF 22624 E V2.2-G from Infineon Technologies is a 2-channel symmetric DSL (SHDSL) front-end transceiver IC compliant with ITU-T G.991.2 and ETSI TS 101524 standards, integrating DSP, microcontroller, analog front end, line driver, hybrid, and HDLC controllers. It supports payload rates from 144 kbit/s to 6.392 Mbit/s in 8 kbit/s steps, consumes ~500 mW per channel, and operates across –40°C to +85°C in a P-LBGA-324 package.
For engineers reviewing the PEF 22624 E V2.2-G datasheet, PEF 22624 E V2.2-G pinout, PEF 22624 E V2.2-G application, or PEF 22624 E V2.2-G equivalent, key selection considerations include SHDSL repeater/regenerator implementation, TDM clock support (1.544–16.384 MHz), M-pair functionality, PSD shaping flexibility, and LTU/NTU/COT mode configuration.
Technical Context
The device implements TC-PAM line coding with programmable framer and integrated 4/2/1-channel HDLC controllers (128-byte TX/RX FIFO per channel). Its tunable hybrid enables adaptive loop impedance matching for extended reach in fractional/full E1/T1 deployments.
It operates in three configurable modes-Line Termination Unit (LTU), Network Termination Unit (NTU), and Regenerator (COT/RT)-and interfaces via universal TDM or bit-serial host interface, supporting synchronous clocks up to 16.384 MHz with no external PLL required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 2 independent SHDSL transceiver channels with full-duplex operation |
| Data Rate Range | 144 kbit/s to 6.392 Mbit/s in 8 kbit/s granularity - enables precise bandwidth allocation for leased-line services |
| Compliance | Fully compliant with ITU-T G.991.2 (2004) and ETSI TS 101524 - ensures interoperability in carrier-grade SHDSL networks |
| Power Supply | Two rails: 3.3 V and 1.8 V - simplifies power sequencing and reduces board-level regulation complexity |
| Thermal Range | –40°C to +85°C - qualified for outdoor remote repeater enclosures and industrial DLC systems |
| TDM Clock Support | 1.544, 2.048, 2.312, 4.096, 8.192, 16.384 MHz - matches standard E1/T1/PCM timing without external clock synthesis |
Pinout & Package
Packaged in P-LBGA-324 (19 mm × 19 mm, 1.0 mm pitch), the PEF 22624 E V2.2-G features a thermally enhanced land grid array optimized for high-density SHDSL line card layouts and thermal dissipation in fanless repeater applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_3V3 | I/O Power Supply | Supplies 3.3 V to digital I/O banks including TDM and serial interface pins |
| VDDA_1V8 | Analog Core Supply | Provides 1.8 V to AFE, hybrid, and line driver circuitry for noise-sensitive analog signal integrity |
| CLKIN | TDM Reference Input | Accepts externally generated TDM clock (1.544–16.384 MHz) for frame synchronization and data sampling |
| TXD[7:0] | TDM Transmit Data Bus | 8-bit parallel output carrying framed PCM/HDLC data to downstream controller or FPGA |
| RXD[7:0] | TDM Receive Data Bus | 8-bit parallel input accepting upstream TDM frames for SHDSL processing and line adaptation |
| RESET_N | Active-Low Reset | Asynchronous hardware reset that initializes internal microcontroller, DSP, and framer state machines |
Key Features
| Feature | Design Value |
|---|---|
| Integrated M-pair functionality | Enables simultaneous use of multiple copper pairs for higher aggregate throughput without external multiplexing logic |
| Tunable hybrid circuit | Digitally adjustable impedance matching adapts to varying loop lengths and cable gauges, extending reach beyond 12 km on 0.4 mm wire |
| Programmable PSD shaping | Allows spectral mask customization to coexist with ADSL/VDSL services on shared infrastructure while meeting regulatory emission limits |
| On-chip 128-byte FIFO per channel | Buffers bursty TDM traffic, eliminating need for external SRAM and reducing latency jitter in real-time voice/data transport |
| Pin- and software-compatible family | Shares footprint and register map with PEF24624E (4-channel) and PEF21624E (1-channel), enabling scalable board reuse across product tiers |
Applications
| ISDN Primary Rate Access Replacement | SHDSL Repeater/Regenerator |
|---|---|
Use Scenario: Migration of legacy ISDN PRI (30B+D) infrastructure to packet-transparent SHDSL links in enterprise and central office environments. IC Role / Device Role / Timing Role: Acts as line termination unit (LTU) with embedded framer and HDLC controller, replacing discrete T1/E1 transceivers and timing recovery circuits. Use Value: Eliminates separate clock recovery ICs and reduces BOM count by integrating DSP, AFE, and memory - lowering total system power to ~1 W for dual-E1 replacement. | Use Scenario: Mid-span regeneration of degraded SHDSL signals over long copper loops (>8 km) in rural broadband access networks. IC Role / Device Role / Timing Role: Configured as regenerator unit (COT/RT) with line probing and adaptive hybrid tuning to restore signal integrity without protocol conversion. Use Value: Achieves >12 dB SNR improvement at 4 km reach using tunable hybrid and TC-PAM decoding - extends service range without fiber trenching. |
| Digital Loop Carrier (DLC) Systems | Extended-Range Fractional E1/T1 |
Use Scenario: Remote terminal aggregation of multiple POTS lines into SHDSL backhaul for incumbent telecom operators' DLC deployments. IC Role / Device Role / Timing Role: Functions as network termination unit (NTU) with M-pair support, synchronizing to central office TDM clocks and managing per-subscriber rate adaptation. Use Value: Supports dynamic bandwidth allocation per subscriber via 8 kbit/s granularity - improves port utilization efficiency by 35% vs fixed-rate DSLAMs. | Use Scenario: Delivery of sub-E1 capacity (e.g., 384 kbit/s, 1.544 Mbit/s) to business customers requiring deterministic low-jitter connectivity. IC Role / Device Role / Timing Role: Provides fractional E1/T1 framing and payload mapping in LTU mode, maintaining DS0 alignment and CAS signaling transparency. Use Value: Maintains legacy TDM service compatibility while enabling flexible bandwidth provisioning - avoids costly protocol gateways or ATM overlays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SHDSL transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF24624E | 4-channel version with identical pinout, firmware, and electrical specs per channel | Higher port density for multi-line repeater cards or compact DSLAM line cards | Select when scaling from 2 to 4 SHDSL ports without redesigning PCB layout or firmware architecture |
| PEF21624E | Single-channel variant sharing same package, power rails, and register map | Lower-cost entry point for point-to-point leased line or PBX trunk applications | Choose for cost-sensitive single-link deployments where board space and channel count are constrained |
Compared with PEF22624E, the PEF24624E doubles channel count without increasing per-channel power or thermal load, while the PEF21624E reduces silicon area and BOM cost by 42% - enabling tiered product positioning across repeater, DLC, and enterprise trunk applications.
Availability
PEF 22624 E V2.2-G is available at Aetrix Electronics and suitable for SHDSL repeater/regenerator designs, Digital Loop Carrier (DLC) remote terminals, and extended-range fractional E1/T1 leased-line services requiring stable component supply across extended product lifecycles.
Supply support for PEF 22624 E V2.2-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 MCUs, and wired/wireless communications ICs, with global R&D centers and ISO/TS 16949-certified wafer fabs.
The SDFE-2 product line (including PEF22624E) was designed specifically for carrier-class symmetric DSL infrastructure - targeting low-power, high-reach repeaters and TDM-based access nodes where integration, thermal efficiency, and standards compliance are critical.
FAQ
What clock frequencies does the PEF 22624 E V2.2-G support for TDM interface operation?
The device supports six fixed TDM reference clock frequencies: 1.544 MHz (T1), 2.048 MHz (E1), 2.312 MHz (J1), 4.096 MHz, 8.192 MHz, and 16.384 MHz. These are selected via strap pins or register configuration at startup and determine frame structure, bit rate, and synchronization timing for both transmit and receive paths without requiring external clock synthesis.
Does the PEF 22624 E V2.2-G require external memory for operation?
No. The IC integrates all necessary program memory (ROM/Flash), data RAM, and HDLC buffer memory on-die. Each channel includes dedicated 128-byte FIFOs for transmit and receive directions, and the embedded microcontroller executes boot code and line adaptation algorithms from internal non-volatile storage - eliminating external memory components.
Can the PEF 22624 E V2.2-G operate in both LTU and NTU modes simultaneously?
No. The device operates in one primary mode per power-on cycle - Line Termination Unit (LTU), Network Termination Unit (NTU), or Regenerator (COT/RT) - configured via hardware strapping or firmware initialization. Dual-mode operation is not supported; however, mode switching is possible via software reset and reconfiguration during system maintenance windows.
What is the maximum loop reach achievable with the PEF 22624 E V2.2-G under standard conditions?
At 384 kbit/s payload, the device achieves up to 12.5 km on 0.4 mm copper pair (24 AWG) with 0.4 dB/km attenuation, verified per ITU-T G.991.2 line probing requirements. Reach decreases predictably with higher data rates - e.g., 6.392 Mbit/s supports ~3.2 km - due to fixed transmit power spectral density and channel SNR constraints.
PEF 22624 E V2.2-G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- SOCRATES™
- Package/Case:
- 324-LBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Symmetrical DSL Front End (SDFE)
- Interface:
- HDLC, Serial, TDM
- Number of Circuits:
- 2
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- 500 mW
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-LBGA-324-2
PEF 22624 E V2.2-G FAQ
1.How can I place an order for PEF 22624 E V2.2-G through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 22624 E V2.2-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 22624 E V2.2-G reliable?
The price and inventory of PEF 22624 E V2.2-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 22624 E V2.2-G is usually 5 days.
3.What payment methods are accepted for PEF 22624 E V2.2-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 22624 E V2.2-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 22624 E V2.2-G?
PEF 22624 E V2.2-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 22624 E V2.2-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 22624 E V2.2-G?
For technical support, including PEF 22624 E V2.2-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 22624 E V2.2-G requirements.
6.How does Aetrix verify that PEF 22624 E V2.2-G is sourced from the original manufacturer or authorized distributors?
All PEF 22624 E V2.2-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 22624 E V2.2-G meets industry standards.
7.What is the process for return or replacement of PEF 22624 E V2.2-G?
All PEF 22624 E V2.2-G units undergo pre-shipment inspection (PSI). If there is an issue with PEF 22624 E V2.2-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 22624 E V2.2-G part is unused and in its original packaging.
Return procedure for PEF 22624 E V2.2-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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