PEF4365TV2.1

Telecom Overview

The PEF4365TV2.1 is a Subscriber Line Interface Circuit (SLIC) manufactured by Infineon Technologies, formerly Lantiq. It provides integrated analog front-end functionality for single-channel telephone line interfaces. The device operates within a supply voltage range of 3.15 V to 5.5 V, with typical operation at 3.3 V or 5 V. It features low power consumption with a working supply current of approximately 3.8 mA. The component supports IOM-2 and PCM digital interfaces for system connectivity. Designed for industrial reliability, it functions across an operating temperature range from -40°C to +85°C. The unit is housed in a DSO-22 surface-mount package.

Telecom Feature Summary

• Integrated subscriber line interface circuitry for analog telephony applications
• Supports standard PCM and IOM-2 digital communication protocols
• Optimized for low power consumption in telecom equipment

Telecom Applications

• Digital subscriber line access multiplexers (DSLAM)
• Central office telephone switching systems
• Enterprise PBX telephony hardware

Telecom Procurement Notes

Verify the specific suffix TV2.1 against official Infineon documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status through the manufacturer's current datasheet. Check for obsolescence notices as this component may be discontinued. Ensure the DSO-22 package footprint matches your PCB design requirements before procurement.

Telecom Selection Notes

Select this component when designing single-channel analog front ends for traditional telephony infrastructure. Verify that the required supply voltage aligns with the 3.15 V to 5.5 V operational window. Consider the thermal performance within the -40°C to +85°C range for your specific enclosure environment. Ensure compatibility with IOM-2 or PCM host controllers for digital interface integration.

Telecom Part Context

This part belongs to the PEF4xxx series of SLICs developed by Lantiq, now part of Infineon Technologies. These components are designed to replace discrete analog front-end solutions in telecommunications gear. The PEF4365 specifically targets single-line applications, offering integration of hybrid circuits, ringing generators, and line feed capabilities in a compact form factor.

Telecom Replacement Considerations

Consult Infineon's official cross-reference guides for verified replacements. Generic SLICs may not match the specific IOM-2/PCM interface timing or electrical parameters. Verify package compatibility if substituting with other DSO-22 devices.