Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

LE88221

Dual Channel FXS 100V ABS VoicePort

Status: Not Recommended for new designs

View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The Le88221 Tracking Battery ABS (Automatic Battery Switching) VoicePort device implements a dual-channel telephone line interface by providing all the necessary voice interface functions from the high voltage subscriber line to the µP/DSP digital interface. The ABS device can operate from external battery supplies, or from supplies generated by the on chip switching regulator controllers. This device reduces system level cost, space, and power by achieving the highest level of voice integration possible. Designers benefit by having a simple, cost effective, low power and dense, interface design without sacrificing features or functionality. The programmable, feature rich VoicePort devices provide a highly functional line interface which meets the requirements of short and medium loop (up to 1500 Ohms total at 1 REN) applications. Features include: high voltage switching regulator, integrated ringing (up to 110-Vpk), worldwide software programmability, flexible signal generator with tone cadencing, caller ID generation and all BORSCHT functions. These VoicePort device features are crucial for designing cost-effective, full-featured Voice over Broadband solutions.

Please consider this device LE9622

Additional Features
  • Complete BORSCHT function in a single VoicePort device for two channels
    • Battery Feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2W/4W), Test
  • Integrated Power Management
    • Integrated high voltage switching regulator controllers
    • Wide input voltage range (VSW =+3.3V to +35 V)
    • Generates supplies for VBH, VBM & VBL
    • Low power Idle and On-hook transmission states
  • Worldwide Programmability
    • Two-wire AC impedance, Balance Impedance, Gain
    • DC feed voltage and current limit
    • Ringing frequency, voltage and current limit
    • 12 kHz and 16 kHz Metering
    • Programmable loop closure and ring trip thresholds
  • Ringing
    • 5 REN with pin for pin compatible 100-V (Le88221) and 120-V (Le88241) devices
    • Up to 110-Vpk internal balanced sinusoidal or trapezoidal ringing with programmable DC offset
    • Unbalanced ringing for PBX trunk compatibility (Le88241 device only)
  • Powerful signal generator
    • Universal Caller ID generation
    • Up to 4 simultaneous tones
    • Automatic cadencing feature
  • Subscriber Loop Test/Self Test support
    • Comprehensive line sensing
    • Integrated self test capabilities
    • Line fault detection and reporting
    • Loop supervision, AC/DC faults
    • Test load switch (Le88241)
  • Pin selectable PCM/MPI or GCI interface
  • G.711 µ-law, A-law, or 16 bit linear coding
  • Integrated 150 mW 3-V or 5-V Relay Driver
    • Supports lifeline POTS in DSL IAD applications
  • Small footprint package - Exposed pad 80-pin LQFP
  • Minimal external discrete components required
Parametrics
Name
Value
Application
Broadband Gateway FXS
Series
VE880
Loop Length
Short
Battery Topology
Shared
SOC Interface
PCM/SPI
Output Voltage (V) max
100
Number of Ports
2
Release
True

Documents

Jump to:

Data Sheets

  
1060KB

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
LE88221DLC
0.690100
0.633333
80
LQFP
14x14x1.4mm
Matte Tin
e3
LE88221DLCT
0.690100
1.510000
80
LQFP
14x14x1.4mm
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.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy