PEF3452H-V13

Telecom Overview

The Infineon PEF3452H-V13 is a TE3-LIU™ Line Interface Unit designed for DS3, STS-1, and E3 applications. Operating on a single 3.3 V supply within a -40°C to +85°C temperature range, it connects framer devices to analog transmission lines up to 1100 ft. The device integrates receive equalization, noise filtering, and clock/data recovery with ultra-low intrinsic jitter. It supports selectable line codes including HDB3, B3ZS, and AMI, and features an integrated jitter attenuation PLL. Configuration is flexible via hardware control or a microprocessor interface.

Telecom Feature Summary

• Integrated pulse shaper eliminates the need for external line build-out components
• Supports both hardware configuration mode and standard microprocessor bus control
• Includes built-in diagnostic capabilities such as local loop, remote loop, and alarm indication signal insertion

Telecom Applications

• SONET/DS3 and E3 network equipment interfaces
• WAN gateways and CSU/DSU systems
• Digital crossconnect systems and multiplexers
• DS3/STS-1/E3 test equipment

Telecom Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the P-MQFP-44-2 specification. Ensure environmental conditions remain within the specified operating temperature range during storage and deployment.

Telecom Selection Notes

Select this component for designs requiring a single-chip solution for DS3, STS-1, or E3 line interfacing. Evaluate system requirements for jitter attenuation and line coding compatibility. Consider the available configuration modes when designing the control logic for the target application.

Telecom Part Context

This device belongs to the TE3-LIU™ family of line interface units from Infineon Technologies. It serves as a specialized interface between digital framing equipment and analog transmission media, fulfilling international standards for T3 and E3 systems.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and control signals if considering alternative vendors.

Telecom FAQ

What line coding options does the PEF3452 support?

The device supports HDB3 and AMI for E3 applications, and B3ZS and AMI for DS3 and STS-1 applications.

How is the device configured without a microprocessor?

The device offers a hardware configuration mode that allows flexible setting of parameters such as line code, loopback, and power down states using dedicated control pins.

What is the maximum supported line length?

The integrated pulse shaper supports line lengths up to 1100 ft. using standard coaxial cable without requiring external length selection components.