™
Le88276
Dual Channel Tracking Battery Wideband VoicePort™
VE880 Series
APPLICATIONS
Voice enabled Cable and DSL Modems
Residential VoIP Gateways and Routers
Media Terminal Adapters (MTA)
Standalone & Embedded
Fiber to the Premise/Home/Building (FTTP/H/B), Fiber
in the Loop (FITL) Optical Network Terminals (ONT)
Wireless Local Loop (WLL), PBX, ISDN NT1/TA
2.
ORDERING INFORMATION
Device OPN
Le88276DLC
1.
Package Type
80-pin eLQFP (Green)
1
Packing
2
Tray
The green package meets RoHS Directive 2002/95/EC of the
European Council to minimize the environmental impact of
electrical equipment.
For delivery using a tape and reel packing system, add a “T” suffix
to the OPN (Ordering Part Number) when placing an order.
FEATURES
Complete BORSCHT function for 2 channels in a single
VoicePort™ device
— 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 =+4.75V 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
— Up to 140-Vpk internal balanced sinusoidal or
trapezoidal ringing with programmable DC offset
— Unbalanced ringing for PBX trunk compatibility
Powerful signal generator
— Universal Caller ID generation
— Up to 4 simultaneous tones
— Automatic cadencing feature
VoicePath™ API-II Software available to implement
FXS functions
— Supports device calibration
— Line configuration via VoicePath Profile Wizard
VeriVoice™ Test Suite Subscriber Loop Test
— Seamless integration with API-II software
— Utilizes integrated self test capabilities
— Line fault detection and reporting
Pin selectable PCM/MPI or GCI interface
G.711 µ-law, A-law, or 16 bit linear coding
Wideband 16 kHz sampling mode
Integrated 150 mW 3-V Relay Driver
— External catch diode required
Small footprint package - Exposed pad 80-pin LQFP
DESCRIPTION
The Zarlink dual channel Le88276 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. 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) applications. Features include: high voltage
switching regulator, self-test, line test capabilities, integrated
ringing (up to 140-Vpk), worldwide software programmability
with wideband capability, 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
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
High
Voltage
Line Driver
Voice
Signal
Processing
Signaling
Control
Supervision
Processing
Signal
Generation
Signal
Generation
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
High
Voltage
Line Driver
Switching
regulator
controllers
PLL
PCLK/DCL
FS/FSC
GCI Interface
(GCI)
PCM Interface
and Time Slot
Assigner
(PCM)
Input / Output
4
DXA/DU
DRA/DD
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
Microprocessor
Interface
(MPI)
Analog
Reference
VREF
IREF
VBAT
2
Document ID#
127609
Date:
Mar 14, 2008
Version:
1
Distribution:
Protected Document
Le88276
FEATURES
• Highest level of integration
• Smallest footprint
• Lowest power solution across all operating modes
• Highly programmable
• Integrated ring cadencing and system state control
• Common application programming interface
Product Brief
BENEFITS
• Reduces system BOM and discrete component count
• Saves board space
• Provides lowest power consumption solution for battery-
backed and power-sensitive 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
• Comprehensive line sensing
• Integrated switching regulator
Le88276 VoicePort Device
MPI & PCM Highway
Switching
Regulator
Controller
Linear/G.711
A/D & D/A
Tip & Ring
Driver
SoC
Voice Signal
Processor,
Supervision, and
Test Functions
Internal Balanced
& Unbalanced
Ringing
A/D & D/A
Tip & Ring
Driver
2-Channel FXS
Related Literature
Le88116/136 Single-Channel Tracking Battery Wideband VoicePort™ Device Data Sheet*
Le88266/286 Dual Channel Tracking Battery Wideband Auto Battery Switching (ABS) VoicePort™ Device Data Sheet*
Le88276 Dual Channel Tracking Battery Wideband Auto Battery Switching (ABS) VoicePort™ Device Data Sheet*
Le71HR0866G - VE880 Series Line Module (Supports 2FXS up to 140 Vpk 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 or for technical support, 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
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable.
However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such
information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or
use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual
property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in
certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink.
This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part
of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other
information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the
capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute
any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and
suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does
not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in
significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request.
Purchase of Zarlink’s I
2
C components conveys a license under the Philips I
2
C Patent rights to use these components in an I
2
C System, provided that the system
conforms to the I
2
C Standard Specification as defined by Philips.
Zarlink, ZL, the Zarlink Semiconductor logo and the Legerity logo and combinations thereof, VoiceEdge, VoicePort, SLAC, ISLIC, ISLAC and VoicePath are
trademarks of Zarlink Semiconductor Inc.
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