LE79114KVC

Telecom Overview

The LE79114KVC is a VoiceEdge Control Processor II integrated circuit designed for telecom voice line interfaces. It operates at a 3.3 V supply voltage with an internal linear regulator providing 1.8 V to the core logic. The device supports 64 channels of call control and includes 32 General Purpose I/Os, configured as 16 chip selects and 16 interrupts. It features two master SPI ports and two slave PCM highway ports capable of operating up to 16.384 MHz. The component is housed in a 128-pin TQFP package.

Telecom Feature Summary

• Aggregated call control capability reduces processing load on the host microprocessor
• Integrated test functions including simultaneous DTMF detection and line testing
• Flexible interface options supporting serial and parallel host controller connections
• Complete management of multiple Quad ISLAC devices via dedicated SPI ports

Telecom Applications

• Integrated Voice Dialers (IVD)
• Digital Loop Carriers (DLC)
• Central Office (CO) systems
• Voice-enabled DSLAMs
• PBX/KTS and MSAP/MSAN platforms

Telecom Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation before procurement. The KVC suffix indicates a 128-pin TQFP package supplied in tray packing. Confirm that the required software support, specifically the LineCare suite and VoicePath API-II, remains available and compatible with the target design environment. Ensure compliance with relevant environmental directives such as RoHS requirements specified in the datasheet.

Telecom Selection Notes

Select this processor when designing cost-effective voice solutions requiring extensive integrated testing capabilities without dedicated external hardware. It is suitable for applications needing full software programmability of AC, DC, and signaling parameters. Consider the requirement for compatibility with Zarlink Ve790 series chipsets and the need for internal PLL-based analog sampling clock generation. Evaluate the system's ability to utilize the provided DSP core and memory resources for custom algorithm implementation.

Telecom Part Context

The LE79114KVC belongs to the Le79114 VoiceEdge Control Processor II family, representing a second-generation platform for telecom interfaces. It builds upon previous models like the Le79112 by offering enhanced channel counts and improved POTS control features. This component is part of a broader ecosystem that includes SLIC and ISLAC devices, facilitating comprehensive voice line interface designs.

Telecom Replacement Considerations

The Le79112 serves as a related predecessor within the same product family. While it shares similar integrated line-testing features, it offers fewer channels of simultaneous DTMF detection and POTS control compared to the Le79114. Verify pinout and software compatibility if considering migration between these variants.