Product Brief
VE880 Series
Dual Channel Tracking Battery VoicePort™ Device
Le88211/231
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
FEATURES
Complete BORSCHT function in a single VoicePortTM
.
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)
ORDERING INFORMATION
Device
Package
Le88211DLC
80-pin eLQFP (Green package)*
Le88231DLC
*Green Package meets RoHS Directive 2002/95/EC of the European
Council to minimize the environmental impact of electrical equipment.
DESCRIPTION
The Zarlink 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, fullfeatured Voice over Broadband solutions.
VOICEPORT™ DEVICE BLOCK DIAGRAM
VBAT 1
TIPD 1
TIPT 1
RINGT 1
RINGD 1
High Voltage
Line Driver
TAC 1
RAC 1
RTV 1
Voice Signal
Processing
LFC 1
RSN 1
IHL 1
Signaling
Control
TDC 1
RDC 1
Supervision
Processing
Signal
Generation
Signal
Generation
RDC 2
TDC 2
Supervision
Processing
IHL 2
RSN 2
LFC 2
Signaling
Control
RTV 2
RAC 2
TAC 2
Voice Signal
Processing
RINGD 2
RINGT 2
TIPT 2
TIPD 2
High Voltage
Line Driver
VBAT 2
PCLK/DCL
PLL
FS/FSC
DXA/DU
DRA/DD
GCI Interface
(GCI)
PCM Interface
and Time Slot
Assigner
(PCM)
Input / Output
TSCA
4
I/O2 i - I/O1 i
Microprocessor
Interface
(MPI)
DCLK/S0
DIN/S1
DOUT
CS/PG
INT/S2
RST
Switching
regulator
controllers
SWCMPY
SWVSY
SWISY
SWOUTY
SWCMPZ
SWVSZ
SWISZ
SWOUTZ
Analog
Reference
VREF
IREF
Document ID# 081348 Date:
Rev:
A
Version:
Distribution:
Public Document
Sep 28, 2007
2
Le88211/231
FEATURES
Product Preview
BENEFITS
• Highest level of integration
• Reduces system BOM and discrete component count
• Smallest footprint
• Saves board space
• 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
• Lowest power solution across all operating modes
• Provides best solution for battery-backed and powersensitive applications
• Highly programmable
• Offers design flexibility to develop one application for
worldwide markets
• Integrated ring cadencing and system state control
• Reduces real-time software overhead
• Comprehensive line sensing
• Enables high performance 909 diagnostics and subscriber
loop test and self test support
• Integrated switching regulator
• Enables lowest component count and highest efficiency in
all states of operation
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 Zarlink Sales Representative to obtain the data sheet.
Packaging and Availability
See Ordering Information on first page.
For More Information:
To find the Zarlink Sales Office nearest you, visit our website at: www.zarlink.com
2
Zarlink Semiconductor Inc.
For more information about all Zarlink products
visit our Web Site at
www.zarlink.com
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TECHNICAL DOCUMENTATION - NOT FOR RESALE