LE88266DLC Zarlink, LE88266DLC Datasheet - Page 2

• Manufacturer Part Number: LE88266DLC
• Description: Automatic Battery Switching 80-Pin LQFP EP Tray
• Manufacturer: Zarlink

Specifications of LE88266DLC

• Package: 80LQFP EP
• Transmission Media Type: Cable|Wireless

Description
The Zarlink dual channel Le88266/286 Tracking Battery Switching (ABS) 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. Designers benefit by having a simple, cost effective, low-power and dense, interface design without
sacrificing features or functionality. The programmable, feature rich VoicePort device provides 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, self-test, line test capabilities, integrated ringing (up
to 110 Vpk), worldwide software programmability with wideband capability, flexible signal generator with tone
cadencing and caller ID generation. These VoicePort device features are crucial for designing cost-effective, full-
featured Voice over Broadband solutions.
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Highest level of integration
Smallest footprint
Pin-compatible options
Lowest cost of ownership
Highly programmable
Integrated ring cadencing and system state
control
Common application programming interface
Comprehensive line sensing
Integrated switching regulator
SoC
Features
Pin-compatible options for 100V/120 V ABS
Le88266/286 VoicePort Devices
Supervision, and
Test Functions
Linear/G.711
Voice Signal
Controller
Processor,
Switching
Regulator
Zarlink Semiconductor Inc.
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Le88266/286
Reduces system BOM and discrete component count
Saves board space
Provides design flexibility to develop one design and populate the
voice socket with the right features for a given market—100 V or 120 V,
internal balanced (sinusoidal or trapezoidal)
Provides the most cost-effective BOM for 2-channel applications
Offers design flexibility to develop one application for worldwide
markets
Reduces real-time software overhead
Significantly reduces development time with VoicePath API-II software
Enables high performance GR-909 diagnostics and subscriber loop
test and self test support with VeriVoice Test Suite software
Enables lowest component count and highest efficiency in all states of
operation
2-Channel FXS
2
A/D & D/A
A/D & D/A
Tip & Ring
Tip & Ring
Driver
Driver
Benefits
Internal Balanced
& Unbalanced
Ringing
Product Brief