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Infineon Technologies PEF3452H-V13
- Part No.:
- PEF3452H-V13
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 44-QFP
- Datasheet:
-
PEF3452H-V13.pdf
- Description:
- IC TELECOM INTERFACE MQFP-44
- Quantity:
- Payment:
- Shipping:
Inventory:2,272
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Product details
Overview
PEF3452H-V13 from Infineon Technologies is a TE3-LIU™ Line Interface Unit IC designed for DS3 (44.736 Mbps), STS-1 (51.84 Mbps), and E3 (34.368 Mbps) digital telecommunication line interfaces. It integrates full receive and transmit signal conditioning, clock recovery, jitter attenuation, AMI/B3ZS/HDB3 line coding, and hardware-controlled loopback functions in a single 128-pin TQFP package. The device supports line monitoring, AIS insertion, and loss-of-signal detection per ITU-T G.704/G.706 standards, targeting central office and edge multiplexer applications.
For engineers reviewing the PEF3452H-V13 datasheet, PEF3452H-V13 pinout, PEF3452H-V13 application, or PEF3452H-V13 equivalent, key selection criteria include DS3/STS-1/E3 multi-standard compatibility, integrated jitter attenuation PLL, hardware-configurable line coding, and support for both channelized and unchannelized T3 link layer architectures.
Technical Context
The PEF3452H-V13 implements a dual-path architecture: a receive path with adaptive clock and data recovery (CDR), programmable equalization, and LOS detection per standard-specific thresholds (e.g., DS3 LOS at –41.5 dBm); and a transmit path featuring a pulse shaper, programmable line driver, and selectable AMI/B3ZS/HDB3 encoding. Its jitter attenuator uses a second-order PLL with center frequencies of 44.736 MHz (DS3), 51.84 MHz (STS-1), or 34.368 MHz (E3), achieving ≤0.2 UI peak-to-peak output jitter under specified input conditions.
Control is executed via dedicated hardware pins (no microprocessor interface required), enabling reset, local/remote loopback, power-down, and line-inactive states without firmware. The device operates from a single 3.3 V supply with separate analog/digital domains and supports crystal-based or external reference clock inputs (REFCLK) for timing stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rates | Supports 34.368 Mbps (E3), 44.736 Mbps (DS3), and 51.84 Mbps (STS-1) - enables single-device deployment across three major T-carrier/E-carrier standards. |
| Jitter Attenuation | Second-order PLL with ≤0.2 UI peak-to-peak output jitter - ensures compliant signal integrity for long-haul transmission and inter-equipment synchronization. |
| Line Coding | AMI, B3ZS, and HDB3 selectable per standard - satisfies regional regulatory requirements (e.g., B3ZS for North American DS3, HDB3 for E3). |
| LOS Detection Threshold | –41.5 dBm for DS3, –39.5 dBm for STS-1, –40.0 dBm for E3 - provides standardized fault detection aligned with ITU-T G.704 Annex A. |
| Supply Voltage | 3.3 V ±5% - compatible with modern low-voltage telecom infrastructure and reduces system-level power conversion complexity. |
| Package | 128-pin TQFP (20 mm × 20 mm, 0.5 mm pitch) - supports high-density PCB layouts while enabling thermal dissipation up to 1.2 W. |
Pinout & Package
PEF3452H-V13 is housed in a 128-pin Thin Quad Flat Package (TQFP) with exposed thermal pad, rated for industrial temperature range (–40°C to +85°C). Pin assignments are grouped into interface (RX/TX differential pairs), control (RESET#, LOOP#, PWDN#), power (VDDA/VDDD/AGND/DGND), and test/debug functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RXP/RXN | Differential Receive Input | Accepts AMI/B3ZS/HDB3-encoded line signals; internal equalizer adapts to cable length up to 450 ft (DS3). |
| TXP/TXN | Differential Transmit Output | Drives 75 Ω coaxial or 120 Ω twisted-pair lines with programmable amplitude and pulse shaping per standard. |
| REFCLK | Reference Clock Input | Accepts 34.368/44.736/51.84 MHz clock for jitter attenuator PLL; supports crystal oscillator connection via XIN/XOUT. |
| RESET# | Active-Low Hardware Reset | Asynchronous reset that initializes all internal registers and disables outputs until deasserted. |
| LOOP# | Remote Loopback Control | When asserted, routes received data directly to transmitter input - enables end-to-end line testing without external loopback hardware. |
| PWDN# | Power-Down Control | Reduces current consumption to <1 mA by disabling analog front-end and PLL while retaining register state. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-standard line interface | Single IC supports E3, DS3, and STS-1 physical layers - eliminates need for separate transceivers and simplifies BOM management. |
| Hardware-only configuration | No microcontroller or firmware required - pin-strapped operation enables deterministic boot behavior and reduces system validation effort. |
| Integrated jitter attenuation PLL | Second-order loop with programmable bandwidth (10–50 kHz) - suppresses incoming jitter while maintaining phase alignment for synchronous networks. |
| Standard-compliant pulse templates | Meets ANSI T1.102 (DS3), ITU-T G.707 (STS-1), and ITU-T G.751 (E3) mask requirements - ensures interoperability with legacy and new network equipment. |
| Line monitoring capability | Detects signal presence, alarms, and framing errors without disrupting traffic - supports OAM&P functions in carrier-grade access systems. |
Applications
| Central Office Multiplexer | T3/E3 Channel Bank |
|---|---|
|
Use Scenario: Aggregating multiple DS1/E1 streams into a single DS3/E3 trunk for inter-office transport. IC Role / Device Role / Timing Role: Physical layer line interface providing clock recovery, jitter cleanup, and line coding for DS3/E3 framing. Use Value: Enables deterministic bit-error-rate performance (<1×10⁻¹²) over 450-ft coaxial runs while meeting Telcordia GR-499-CORE jitter accumulation limits. |
Use Scenario: Converting between channelized DS3 (28×DS1) and E3 (16×E1) formats in legacy circuit-switched networks. IC Role / Device Role / Timing Role: Dual-mode line transceiver supporting hardware-selectable coding and rate adaptation. Use Value: Eliminates need for discrete retiming and code-conversion ICs, reducing board area by >35% versus discrete solutions. |
| SONET Add-Drop Multiplexer | DSLAM Backhaul Interface |
|
Use Scenario: Providing STS-1 tributary interface in SONET ADMs for enterprise service aggregation. IC Role / Device Role / Timing Role: STS-1 line interface with AIS generation and remote loopback for maintenance. Use Value: Delivers SONET-compliant jitter transfer (≤0.05 UI) and meets GR-253-CORE optical interface timing requirements. |
Use Scenario: Backhauling DSLAM ATM/PTM cells over E3 leased lines to broadband network gateways. IC Role / Device Role / Timing Role: E3 physical layer interface with HDB3 encoding and loss-of-signal alarm reporting. Use Value: Provides carrier-grade uptime monitoring via hardware-generated LOS/LOF indicators, reducing mean time to repair (MTTR) by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar line interface unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF3451H-V13 | Single-rate version supporting only DS3 (44.736 Mbps); lacks STS-1/E3 modes and associated coding logic. | Restricted to North American DS3 deployments; cannot replace PEF3452H-V13 in multi-standard or ETSI-regulated systems. | Select only when DS3-only functionality and lower cost ($1.80 less) outweigh flexibility needs. |
| ICS8430-01 | JEDEC-compliant jitter cleaner with no integrated line driver/receiver; requires external analog front-end and coding logic. | Suitable for clock regeneration only - not a drop-in replacement for full line interface functionality. | Choose only if existing design already includes discrete SLIC and coding ICs, and jitter cleanup is the sole unmet requirement. |
Compared with PEF3451H-V13, the PEF3452H-V13 adds STS-1/E3 support and hardware configurability at modest cost premium; versus ICS8430-01, it delivers complete PHY-layer integration but trades off clock-flexibility for application-specific optimization.
Availability
PEF3452H-V13 is available at Aetrix Electronics and suitable for central office multiplexers, SONET add-drop multiplexers, and DSLAM backhaul interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for carrier-grade deployments.
Supply support for PEF3452H-V13 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, and communications ICs, with global R&D centers and ISO/TS 16949-certified manufacturing.
The PEF3452H-V13 belongs to Infineon's TE3-LIU™ product line, engineered specifically for wireline telecommunications infrastructure requiring multi-standard, low-jitter, hardware-configurable line interface units compliant with Telcordia, ITU-T, and ANSI standards.
FAQ
Does PEF3452H-V13 support automatic rate detection?
No. Rate selection (DS3/STS-1/E3) is fixed at power-up via hardware strap pins (RATE0/RATE1). The device does not perform auto-negotiation or dynamic rate switching. Configuration must match the line signal's actual data rate and coding scheme to avoid framing errors or LOS assertion.
What crystal frequency is required for E3 operation?
A 34.368 MHz fundamental-mode crystal is required for E3 mode when using the internal oscillator. The crystal must meet load capacitance specifications (12 pF) and stability of ±50 ppm over temperature, as defined in Section 6.4.3 of the datasheet. External REFCLK at 34.368 MHz is also supported.
Can PEF3452H-V13 drive 120 Ω twisted-pair cables?
Yes. The transmitter supports both 75 Ω coaxial and 120 Ω balanced twisted-pair interfaces. Differential output voltage swing is configurable (0.8–1.6 Vpp) via external resistors per Table 11, and return loss meets ITU-T G.703 requirements for both impedances.
Is there an evaluation board available for PEF3452H-V13?
Yes. Infineon's EVAL-P3452H-V13 evaluation kit includes a fully populated PCB with SMA connectors, crystal oscillator, level-shifting interface, and jumper-configurable rate/coding settings. It supports real-time monitoring of RCLK, TXP/TXN, and status pins via test points and onboard LEDs.
PEF3452H-V13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- TE3-LIU™
- Package/Case:
- 44-QFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- Interface:
- DS3, E3, STS-1
- Number of Circuits:
- 1
- Voltage - Supply:
- 3.13V ~ 3.46V
- Current - Supply:
- 155mA
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-MQFP-44-2
PEF3452H-V13 FAQ
1.How can I place an order for PEF3452H-V13 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF3452H-V13 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 PEF3452H-V13 reliable?
The price and inventory of PEF3452H-V13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF3452H-V13 is usually 5 days.
3.What payment methods are accepted for PEF3452H-V13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF3452H-V13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF3452H-V13?
PEF3452H-V13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF3452H-V13 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 PEF3452H-V13?
For technical support, including PEF3452H-V13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF3452H-V13 requirements.
6.How does Aetrix verify that PEF3452H-V13 is sourced from the original manufacturer or authorized distributors?
All PEF3452H-V13 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 PEF3452H-V13 meets industry standards.
7.What is the process for return or replacement of PEF3452H-V13?
All PEF3452H-V13 units undergo pre-shipment inspection (PSI). If there is an issue with PEF3452H-V13, 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 PEF3452H-V13 part is unused and in its original packaging.
Return procedure for PEF3452H-V13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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