The Le79124 Next Generation VoiceEdgeT Control Processor (VCP) is a second generation platform that delivers enhanced call control, self-test and line test capabilities. This latest processor works with Zarlink NGCC devices using its SPI interface(s), PCM port(s), and GPIO. The Le79124 device provides the same integrated line-testing and feature-set as the Le79112 device, plus additional capabilities such as 4 channels of simultaneous line testing and 72 channels of improved POTS control. This product enables the design of a low-cost, high performance, fully software programmable line interface with worldwide applicability. All AC, DC, and signaling parameters are programmable. The Le79124 device is provided with extensive software and support, through the LineCareT software suite, enabling the designer to develop a fully programmable solution in the least amount of time.

Features & Benefits

• Aggregated call control lowers demand on host microprocessor
  • 72 channels of call control
• Provides expanded line and circuit testing in conjunction with Zarlink's NGCC chipset
  • Provides 4 channels of simultaneous line testing
• Software interface using VoicePathT API-II
• Software downloadable, field upgradeable, expandableSerial and parallel host controller interface options
• Complete control of up to 9 Octal NGSLAC devices
• Two master SPI ports
• 32 General Purpose I/Os
• 9 configured as chip selects
• 9 configured for interrupts
• Two slave PCM highway ports
  • Single or dual PCM highways capable of operating up to 16.384 MHz
  • Separate test highway option
• Internal PLL and hardware network timing recovery for creating analog sampling clocks
• 3.3 V compliant I/O; Internal 3.3 V to 1.8 V linear regulator for the core logic

Documentation

Design Manuals

Software Manuals

Application Notes

Product Previews

• VE792 Product Preview
• LineCare Line-Test with Le79124 VCP2

Evaluation Boards

Reference Designs

Software URLs

• LE79124SLBT: VCP2-VP792 Code Load - Basic Test
• LE79124SLATP: VCP2-VP792 Code Load - Advanced Test with Calibration
• LE79124SLAT: VCP2-VP792 Code Load - Advanced Test

Specific Applications

• VCP2-Type2CallerID-AppNote_Nov11.pdf

Typical Applications

• Cost effective voice solution for long or short loops providing POTS and integrated test capabilities
• Applications include: IVD, DLC, CO, Voice-enabled DSLAM, PBX/KTS, MSAP, MSAN

Product Packaging & Availability

Part Number	Package Type	Pin Count	Lead-Free Option	Shipping Option(s)	Lead Time(wks)	Status
LE79124KVC	TQFP	128	GREEN	Tray	10-12 weeks	Production
LE79124KVCT	TQFP	128	GREEN	TR	10-12 weeks	Production

Packaging Information

• Soldering Profiles
• Moisture Sensitivity
• Shelf Life
• Reliability Data

Technical Support

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