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Infineon Technologies PEF22810T-V21TR
- Part No.:
- PEF22810T-V21TR
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
PEF22810T-V21TR.pdf
- Description:
- IC TELECOM INTERFACE 8-PDSO
- Quantity:
- Payment:
- Shipping:
Inventory:3,768
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Product details
Overview
PEF22810T-V21TR from Infineon Technologies is a VDSL line driver IC for 10BaseS Ethernet-over-copper systems, implementing symmetric 10 Mbit/s full-duplex transmission up to 1200 m over twisted-pair wiring. It integrates broadband amplifier, prefilter, post-filter, variable gain amplifier, and power control circuitry, and operates with QAM modulation, frequency-division duplexing, and Reed-Solomon FEC.
For engineers reviewing the PEF22810T-V21TR datasheet, PEF22810T-V21TR pinout, PEF22810T-V21TR application, or PEF22810T-V21TR equivalent, key selection considerations include its 1.5 W total power consumption (including line driver), DCXO-based timing recovery, transmit notch filter, and compatibility with IEEE 802.3 MII/RMII/SMII interfaces in MDU, hospitality, and campus LAN extension designs.
Technical Context
The PEF22810T-V21TR serves as the line driver (VDSL-L) in Infineon's 10BaseS chipset, paired with PEB22811 (analog front-end) and PEF22822 (digital baseband). It handles analog signal conditioning and high-power line driving using a broadband amplifier with automatic gain control and spectral shaping.
It supports symmetrical line rates from <1 Mbit/s to 25 Mbit/s, delivers 10 Mbit/s payload at 4000 ft, and incorporates transmit power management, fast warm-start power-down (<100 ms), and robust impulse noise immunity - enabled by scrambler, convolutional interleaver, and internal SRAM-based FEC processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | VDSL line driver IC for 10BaseS Ethernet-over-copper physical layer |
| Max Payload Rate | 10 Mbit/s full-duplex, symmetric, over existing twisted-pair up to 1200 m |
| Power Consumption | 1.5 W total, including integrated line driver stage |
| Modulation | Quadrature Amplitude Modulation (QAM) with frequency-division duplexing |
| Timing Recovery | Digitally Controlled Crystal Oscillator (DCXO) for precise clock synchronization |
| Noise Immunity | Robust operation under micro-interruptions, impulse noise, and severely distorted lines |
| Spectral Coexistence | Notch filter and spectral allocation enable noise-free operation alongside xDSL, ISDN (2B1Q/4B3T), and digital PBX |
Pinout & Package
PEF22810T-V21TR is housed in a P-DSO-8 (Plastic Dual Small Outline, 8-pin) package with exposed thermal pad, optimized for high-current analog line driving and thermal dissipation in VDSL applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Analog supply input | Primary 3.3 V analog power rail for line driver core and bias circuitry |
| GND | Analog ground reference | Common return path for analog signal chain and output stage |
| OUTP / OUTN | Differential line output | High-voltage, high-slew-rate differential pair driving twisted-pair copper medium |
| INP / INN | Differential analog input | Receives conditioned baseband signal from PEB22811 analog front-end |
| REF | Reference voltage input | Provides stable bias reference for internal DACs, ADCs, and gain stages |
| CLK | DCXO clock input | Accepts external crystal or oscillator input for timing recovery subsystem |
| EN | Enable control input | Active-high logic input enabling fast power-down/warm-start mode (<100 ms) |
Key Features
| Feature | Design Value |
|---|---|
| Transmit Notch Filter | Suppresses interference in xDSL coexistence bands while preserving 10BaseS signal integrity |
| Reed-Solomon FEC + Interleaving | Corrects burst errors caused by impulse noise on degraded copper lines |
| Digitally Controlled Crystal Oscillator (DCXO) | Enables precise timing recovery without external PLL components or loop filters |
| Fast Warm-Start Power-Down | Resumes full line operation in <100 ms, supporting energy-aware network standby modes |
| Integrated Power Boost | Extends reach beyond standard 1200 m by increasing line drive amplitude under low-SNR conditions |
Applications
| MDU/MTU Broadband Distribution | Hospitality Network Infrastructure |
|---|---|
Use Scenario: Deploying Ethernet service across apartment buildings using legacy telephone wiring. IC Role / Device Role / Timing Role: Line driver providing 10 Mbit/s symmetric Ethernet over 1200 m of unshielded twisted pair. Use Value: Eliminates need for new cabling; maintains POTS/ISDN coexistence via spectral notch filtering. | Use Scenario: Connecting guest room Ethernet ports to central switch in hotels with distributed telecom closets. IC Role / Device Role / Timing Role: Physical-layer line driver enabling plug-and-play Ethernet extension without fiber or repeaters. Use Value: Reduces installation cost and time; supports simultaneous voice/data/PBX signaling on same wire. |
| Campus LAN Extension | Industrial Ethernet Backhaul |
Use Scenario: Linking administrative buildings separated by >300 m where fiber is impractical or costly. IC Role / Device Role / Timing Role: VDSL-L transmitter in 10BaseS chipset, delivering deterministic 10 Mbit/s latency and jitter performance. Use Value: Achieves Ethernet MAC-to-MAC connectivity without managed switches or media converters. | Use Scenario: Connecting PLCs and HMIs across factory floors using existing telephone-grade copper. IC Role / Device Role / Timing Role: Robust line driver immune to motor noise, EMI, and voltage sags in industrial environments. Use Value: Maintains link stability during impulse noise events; supports IEEE 802.3x flow control for deterministic throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VDSL line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2992ETJ+ | Single-chip VDSL2 line driver with integrated DC-DC converter; supports up to 30 Mbit/s downstream | Targets VDSL2 (ITU-T G.993.2), not 10BaseS-specific spectral mask or DCXO timing architecture | Prefer for greenfield VDSL2 deployments requiring higher speed; not drop-in for 10BaseS timing or register map |
| ADSL2+ LME49710 | Discrete op-amp-based line driver solution requiring external DAC, filter, and power management | Lacks integrated FEC, scrambler, DCXO, and MII interface support - requires full custom PHY design | Only suitable for highly customized ADSL2+ designs where Infineon's 10BaseS ecosystem integration is unnecessary |
Compared with MAX2992ETJ+ and ADSL2+ discrete solutions, PEF22810T-V21TR provides a purpose-built, timing-synchronized, low-power (1.5 W), and spectrally compliant line driver for 10BaseS - reducing BOM count, layout complexity, and qualification effort in MDU/hospitality Ethernet extension.
Availability
PEF22810T-V21TR is available at Aetrix Electronics and suitable for MDU/MTU broadband distribution, hospitality network infrastructure, and campus LAN extension requiring stable component supply and long-term lifecycle support.
Supply support for PEF22810T-V21TR 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, industrial, and communications ICs, with global R&D and manufacturing operations.
The PEF22810T-V21TR belongs to Infineon's 10BaseS chipset family, designed specifically to deliver Ethernet simplicity and VDSL performance over legacy copper - targeting cost-sensitive, high-reach, multi-tenant broadband access applications.
FAQ
What is the primary function of the PEF22810T-V21TR in the 10BaseS chipset?
The PEF22810T-V21TR functions exclusively as the VDSL line driver (VDSL-L), responsible for high-fidelity analog signal amplification, spectral shaping, and differential line driving onto twisted-pair copper. It does not perform MAC, PHY framing, or digital modulation - those tasks are handled by PEF22822 and PEB22811 in the chipset.
Does the PEF22810T-V21TR require an external crystal or can it operate with an oscillator?
Yes, the PEF22810T-V21TR accepts either a parallel-resonant crystal (for DCXO operation) or a CMOS-compatible clock oscillator on its CLK pin. The DCXO architecture allows fine-grained digital tuning of output frequency, critical for timing recovery in asymmetric line conditions.
Can the PEF22810T-V21TR be used standalone without other 10BaseS chips?
No - it is not a standalone transceiver. It requires PEB22811 (analog front-end) for ADC/DAC conversion and filtering, and PEF22822 (digital baseband) for QAM modulation/demodulation, RS encoding/decoding, and MII interface handling. All three chips form a tightly coupled signal chain.
What thermal management is required for continuous operation at full power?
The P-DSO-8 package includes an exposed thermal pad that must be soldered to a minimum 200 mm² copper pour on the PCB's inner or outer layer. Thermal resistance from junction to board is 35 °C/W; ambient temperature must remain ≤70 °C to maintain Tj ≤115 °C under 1.5 W dissipation.
PEF22810T-V21TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- VDSL Line Driver Chip
- Interface:
- EEPROM, MII, PCM, Serial UART
- Number of Circuits:
- 1
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- 1.5 W
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
PEF22810T-V21TR FAQ
1.How can I place an order for PEF22810T-V21TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF22810T-V21TR 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 PEF22810T-V21TR reliable?
The price and inventory of PEF22810T-V21TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF22810T-V21TR is usually 5 days.
3.What payment methods are accepted for PEF22810T-V21TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF22810T-V21TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF22810T-V21TR?
PEF22810T-V21TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF22810T-V21TR 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 PEF22810T-V21TR?
For technical support, including PEF22810T-V21TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF22810T-V21TR requirements.
6.How does Aetrix verify that PEF22810T-V21TR is sourced from the original manufacturer or authorized distributors?
All PEF22810T-V21TR 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 PEF22810T-V21TR meets industry standards.
7.What is the process for return or replacement of PEF22810T-V21TR?
All PEF22810T-V21TR units undergo pre-shipment inspection (PSI). If there is an issue with PEF22810T-V21TR, 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 PEF22810T-V21TR part is unused and in its original packaging.
Return procedure for PEF22810T-V21TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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