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LE79114

Voice Control Processing Device - VCP II

Status: In Production

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RoHS Information
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Device Overview

Summary

The Le79114 VoiceEdge™ Control Processor (VCP II) is a digital signal processing platform that works with Microchip's VE790 Series of chipsets using the MPI interface, PCM port, and an interrupt line from the codec/filter. The primary functions of the Le79114 VCP II device are to program and control the codec/filter and interface to the host processor via an Application Programming Interface (API). Firmware residing in the DSP's RAM provides enhanced call processing and test capabilities. The Le79114 VCP II, in combination with a VE790 Series chipset, supports up to 64 channels of universal telephone line interface with high-level voice functionality through a single interface to the host processor. The solution enables the design of a low-cost, high-performance, fully software programmable line interface for multiple country applications. All AC, DC, signaling parameters, and data are fully programmable via the Host Bus Interface (HBI) (parallel 8/16 bits or serial SPI interface). Additionally, the Le79114 VCP II device has integrated self-test and line-test capabilities to resolve faults to the line or line circuit. The integrated test capability is crucial for remote applications where dedicated test hardware is not cost effective.

Additional Features
  • Provides expanded line and circuit testing in conjunction with Microchip's VE790 and VE880 Series chipsets
  • DTMF detection (Q.24 compliant, up to 32 channels simultaneously)
  • Dial Pulse detection and decode
  • Aggregated codec/filter control lowers demand on host micro-processor
  • Software interface using VoicePath API-II (VP-API)
  • Software downloadable, field upgradeable, expandable
  • Two Master SPI ports, each capable of driving the MPI port of up to 8 Microchip SLAC devices
  • Dual Slave PCM Highways (A & B) with bi-directional data capabilities
  • Master PCM interface capable of driving up to 16 SLAC PCM ports.
  • Event queue buffer capable of storing up to 128 events
  • Internal PLL and hardware network timing recovery for creating analog sampling clocks
  • Real Time clock capable of being driven from the slave PCM clock
  • Serial and parallel host controller interface options
  • 32 I/Os capable of supporting 64 voice channels
  • 3.3 V compliant I/O; Internal 3.3 V to 1.8 V linear regulator for the core logic
  • UART interface
Parametrics
Name
Value
Application
Access Networks Voice Control Processor
Series
VE790
Loop Length
Long
SOC Interface
PCM/SPI
Number of Ports
64

Documents

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Data Sheets

  
852KB

Please visit the Microsemi Software Download System (SDS) for available software.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LE79114KVC
0.510000
3.111111
128
TQFP
14x14x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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