LE79271AMQC

Telecom Overview

The LE79271AMQC is a Next Generation Subscriber Line Interface Circuit (SLIC) from Microchip Technology, designed for high-density universal telephone line interfaces. It operates with 3.3 V and battery supplies, supporting two negative and one positive battery configuration. The device features dual battery operation for system power saving with automatic switching and intelligent thermal management. It supports 85 Vrms internal ringing in balanced or unbalanced modes and includes integrated self-test and line-test capabilities. Key electrical parameters include 5 REN with DC offset and compatibility with inexpensive protection networks.

Telecom Feature Summary

• Designed to minimize POTS transients and optimize CRC performance for triple play applications
• Provides comprehensive subscriber line diagnostics including leakage, loop resistance, capacitance, and foreign voltage sensing
• Supports metering at 12 kHz and 16 kHz with smooth polarity reversal
• Features tip-open mode support for ground start signaling

Telecom Applications

• DSL friendly high density universal telephone line interface implementation
• Triple play applications requiring optimized CRC performance
• Subscriber line diagnostics and fault resolution systems

Telecom Procurement Notes

Verify the specific AMQC suffix against the official datasheet to confirm package type and temperature range specifications. Ensure compatibility with the LE79238 SLAC device for complete NGCC functionality. Confirm RoHS compliance status through the manufacturer's documentation before integration into production designs.

Telecom Selection Notes

Select this component when designing high-density telephone line interfaces requiring software programmability for AC, DC, and signaling parameters. Consider the LE79271AMQC for applications needing integrated self-test capabilities and support for both balanced and unbalanced ringing voltages up to 85 Vrms.

Telecom Part Context

The LE79271 is part of the Next Generation Carrier Chipset (NGCC) family developed by Microchip Technology. It is intended to be used in conjunction with the LE79238 SLAC device to create a fully software programmable line interface solution suitable for worldwide applicability.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.