LE792388TVC

Telecom Overview

The LE792388TVC is an octal subscriber line audio processing circuit (SLAC) from Microchip Technology's Next Generation Carrier Chipset. It provides a fully software-programmable eight-channel universal telephone line interface optimized for xDSL and triple-play applications. The device integrates A-law/µ-law codecs, DSP-based filtering, and programmable gain control. It supports standard PCM and MPI digital interfaces and includes internal ringing generation with ring-trip detection. The component enables high-density line card designs with comprehensive loop supervision, DC feeding, and metering capabilities.

Telecom Feature Summary

• Integrates an octal codec and digital signal processor for programmable line control
• Supports GR-844 equivalent testing and enhanced line-test primitives
• Includes internal ringing generation and integrated ring-trip detection
• Features general-purpose I/O pins configurable as relay drivers

Telecom Applications

• Next Generation Broadband xDSL line cards
• Triple-play application interfaces
• High-density medium and large line count telephony systems

Telecom Procurement Notes

Verify the specific package marking and date code against the official datasheet to ensure authenticity. Confirm that the ordering suffix matches the required reel or tube configuration for your assembly process. Cross-reference the manufacturer part number with authorized distributor catalogs to validate supply chain integrity before finalizing procurement orders.

Telecom Selection Notes

Select this component when designing high-density telephone line interfaces requiring software programmability. It serves as a direct API-compatible replacement for VE790 Series designs. Ensure compatibility with the Le79271 SLIC device for complete line interface functionality. Verify that the host microprocessor can support the required VCP test primitives and signaling parameters.

Telecom Part Context

This device belongs to the Next Generation Carrier Chipset (NGCC) family. It is designed to work in conjunction with the Le79271 Subscriber Line Interface Circuit (SLIC). Together, these components form a complete solution for universal telephone line interfacing. The chipset architecture allows for worldwide applicability through software-configurable AC and DC parameters.

Telecom Replacement Considerations

The LE792388TVC is API-compatible with the VE790 Series. Designers migrating from legacy VE790 hardware should verify software routine compatibility. No direct pin-for-pin substitutes are documented; system-level validation is required for any alternative integration.