Document ID# 081348 Date: Sep 28, 2007
Rev: A Version: 2
Distribution: Public Document
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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 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)
ORDERING INFORMATION
*Green Package meets RoHS Directive 2002/95/EC of the European
Council to minimize the environmental impact of electrical equipment.
Device Package
Le88211DLC
80-pin eLQFP (Green package)*
Le88231DLC
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, full-
featured Voice over Broadband solutions.
VOICEPORT™ DEVICE BLOCK DIAGRAM
PCLK/DCL
I/O2
i
- I/O1
i
DRA/DD
DXA/DU
FS/FSC
DOUT
4
TIPD
1
TDC
1
TSCA
RST
CS/PG
DCLK/S0
DIN/S1
INT/S2
TAC
1
RINGD
1
RDC
1
RAC
1
RINGT
1
TIPT
1
IREFVREF
High Voltage
Line Driver
GCI Interface
(GCI)
Microprocessor
Interface
(MPI)
PLL
Analog
Reference
PCM Interface
and Time Slot
Assigner
(PCM)
Signal
Generation
Input / Output
Voice Signal
Processing
Supervision
Processing
Signaling
Control
LFC
1
RTV
1
RSN
1
IHL
1
SWCMPY
SWVSY
SWISY
SWOUTY
Switching
regulator
controllers
TIPD
2
TDC
2
TAC
2
RINGD
2
RDC
2
RAC
2
RINGT
2
TIPT
2
High Voltage
Line Driver
Signal
Generation
Voice Signal
Processing
Supervision
Processing
Signaling
Control
LFC
2
RTV
2
RSN
2
IHL
2
VBAT
2
SWCMPZ
SWVSZ
SWISZ
SWOUTZ
VBAT
1
