Product
Brief
VE880 Series
Dual Channel Automatic Battery Switching (ABS) VoicePort™ Device
Le88221/241
APPLICATIONS
Voice enabled Cable and DSL Modems
Voice over IP/ATM - Integrated Access Devices (IAD)
Smart Residential Gateways (SRG) 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
ORDERING INFORMATION
Device
Le88221DLC
Le88241DLC
Package
80-pin eLQFP (Green package*)
*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 Le88221/241 Automatic 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 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 at 1 REN) applications. Features
include: high voltage switching regulator, self-test, line test
capabilities, integrated ringing (up to 110-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
— Small footprint package - Exposed pad 80-pin LQFP
— Minimal external discrete components required
Integrated Power Management
— Integrated high voltage switching regulator controllers
– Wide input voltage range (VSW =+3.3V to +35 V)
– Generates supplies for VBH, VBM & VBL
— Low power Idle and On-hook transmission states
Ringing
— 5 REN with pin for pin compatible 100-V (Le88221) and
120-V (Le88241) devices
— Up to 110-Vpk internal balanced sinusoidal or
trapezoidal ringing with programmable DC offset
— Unbalanced ringing for PBX trunk compatibility
(Le88241 device)
Pin selectable PCM/MPI or GCI interface
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
G.711 µ-law, A-law, or 16 bit linear coding
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 (Le88241)
Integrated 150 mW 3-V or 5-V Relay Driver
Pin-compatible wide band version available (16-kHz
sampling mode)
VOICEPORT™ DEVICE BLOCK DIAGRAM
VBL VBM VBH
TIPD
1
TIPT
1
RINGT
1
RINGD
1
TAC
1
RAC
1
RTV
1
LFC
1
RSN
1
IHL
1
TDC
1
RDC
1
PCLK/DCL
FS/FSC
GCI Interface
(GCI)
DXA/DU
DRA/DD
High Voltage
Line Driver
PLL
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
XB
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
VBL VBM VBH
VREF
IREF
Document ID#
081199
Date:
Rev:
A
Version:
Distribution:
Public Document
Sep 28, 2007
2
Le88221/241
Product
Brief
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 120 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
081265 - Le88221/241 Dual-Channel ABS Narrow band VoicePort Device Data Sheet*
081307- Le88226/246 Dual-Channel ABS Wide band VoicePort™ Device Data Sheet*
081206 - Le88116/136 Single-Channel Tracking Battery Wide Band VoicePort™ Device Data Sheet*
Le71HR0824 - VE880 Series Line Module (Supports 2FXS ABS up to 120-V ringing with a 12-V Flyback Automatic
Battery Switching 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
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
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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.
TECHNICAL DOCUMENTATION - NOT FOR RESALE
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