Product Preview
VE880 Series
A
Voice Solution
Dual Channel Tracking Battery VoicePort™ Device
Le88211/231
ORDERING INFORMATION
Device
Le88211DLC
Le88231DLC
Package
80-pin eLQFP (Green package)*
APPLICATIONS
Voice enabled Cable and DSL Modems
Voice over IP/ATM - Integrated Access Devices (IAD)
Residential VoIP Gateways and Routers
Media Terminal Adapters (MTA)
Standalone & Embedded
Fiber to the User/Premise/Home (FTTH/P/H), Fiber in
the Loop (FITL) Optical Network Terminals (ONT)
Wireless Local Loop (WLL), PBX, ISDN NT1/TA
Set-Top Box, Home Side Box
*Green Package meets RoHS Directive 2002/95/EC of the European
Council to minimize the environmental impact of electrical equipment.
DESCRIPTION
The Legerity dual channel Le88211/231 Tracking Battery
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. 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) applications. Features include: high voltage
switching regulator, self-test, line test capabilities, integrated
ringing (up to 140-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.
FEATURES
Complete BORSCHT function in a single VoicePort
TM
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)
– Switching power supply tracks line voltage
minimizing active & ringing state power dissipation
— 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 (Le88211) and
150-V (Le88231) devices
— Up to 140-Vpk internal balanced sinusoidal or
trapezoidal ringing with programmable DC offset
— Unbalanced ringing for PBX trunk compatibility
(Le88231 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 (Le88231)
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
Small footprint package - Exposed pad 80-pin LQFP
Pin-compatible wide band version available (16-kHz
sampling mode)
VOICEPORT™ DEVICE BLOCK DIAGRAM
VBAT
1
TIPD
1
TIPT
1
RINGT
1
RINGD
1
TAC
1
RAC
1
RTV
1
LFC
1
RSN
1
IHL
1
TDC
1
RDC
1
PLL
PCLK/DCL
FS/FSC
GCI Interface
(GCI)
DXA/DU
DRA/DD
High Voltage
Line Driver
Voice Signal
Processing
Signaling
Control
Supervision
Processing
Signal
Generation
Signal
Generation
PCM Interface
and Time Slot
Assigner
(PCM)
Input / Output
4
TSCA
I/O2
i
- I/O1
i
DCLK/S0
DIN/S1
DOUT
CS/PG
INT/S2
RST
SWCMPY
SWVSY
SWISY
SWOUTY
SWCMPZ
SWVSZ
SWISZ
SWOUTZ
RDC
2
TDC
2
IHL
2
RSN
2
LFC
2
RTV
2
RAC
2
TAC
2
RINGD
2
RINGT
2
TIPT
2
TIPD
2
Supervision
Processing
Signaling
Control
Voice Signal
Processing
Microprocessor
Interface
(MPI)
Switching
regulator
controllers
High Voltage
Line Driver
Analog
Reference
VBAT
2
VREF
IREF
The information in this document is Preliminary and may be changed in whole or in part without notice. Zarlink
makes no guarantee that the device(s) described herein will ever be considered for commercialization or mass
production. If you are considering using the proposed device(s) or doing any related design work, please call
a Zarlink sales representative for current information.
Document ID#
081348
Date:
Rev:
A
Version:
Distribution:
Public Document
Sep 28, 2007
2
NOTE: On August 3, 2007, Zarlink Semiconductor acquired the products and technology of Legerity Holdings.
Le88211/231
Product Preview
FEATURES
• Highest level of integration
• Smallest footprint
• Saves board space
BENEFITS
• Reduces system BOM and discrete component count
• Pin-compatible options
• Provides design flexibility to develop one design and
populate the voice socket with the right features for a given
market—100 V or 150 V, narrow band or wide band,
internal balanced (sinusoidal or trapezoidal) or
unbalanced ringing
• Provides best solution for battery-backed and power-
sensitive applications
• Offers design flexibility to develop one application for
worldwide markets
• Reduces real-time software overhead
• Enables high performance 909 diagnostics and subscriber
loop test and self test support
• Enables lowest component count and highest efficiency in
all states of operation
• Lowest power solution across all operating modes
• Highly programmable
• Integrated ring cadencing and system state control
• Comprehensive line sensing
• Integrated switching regulator
Related Literature
081274 - Le88211/231 Dual-Channel Tracking Battery Narrow band VoicePort Device Data Sheet*
081315 - Le88216/236 Dual-Channel Tracking Battery Wide band VoicePort™ Device Data Sheet*
081206 - Le88116/136 Single-Channel Tracking Battery Wide band VoicePort™ Device Data Sheet*
081307 - Le88226/246 Dual-Channel ABS Wide band VoicePort™ Device Data Sheet*
Le71HR0826 - VE880 Series Line Module (Supports 2FXS up to 150-V ringing with a 12-V Flyback Tracking Power
Supply)
*Contact your Legerity Sales Representative to obtain the data sheet.
Packaging and Availability
See
Ordering Information
on first page.
For More Information:
To find the Legerity Sales Office nearest you, visit our website at:
www.legerity.com/contact/
For all other technical inquiries, please contact Legerity Tech Support at:
techsupport@Legerity.com
Zarlink, ZL, the Zarlink Semiconductor logo are trademarks, and Legerity, the Legerity logo and combinations thereof are registered trademarks
of Zarlink Semiconductor Inc. All other trademarks and registered trademarks are the property of their respective owners.
© 2007 Zarlink Semiconductor Inc. All Rights Reserved.
2
Zarlink Semiconductor Inc.
京公网安备 11010802033920号
EEWORLD
