Product
Single Channel VoicePort™ Device
Le88111/131
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
VE880 Series
Package
44-pin eLQFP (Green package*)
ORDERING INFORMATION
Device
Le88111BLC*
Le88131BLC
*Green Package. meets RoHS Directive 2002/95/EC of the European
Council to minimize the environmental impact of electrical equipment.
DESCRIPTION
The
Le88111/131 Tracking Battery VoicePort™ device
implements a single-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
™
device
—
Battery
Feed,
Over-voltage
support, integrated
Ringing,
line
Supervision, Codec, Hybrid
(2W/4W),
Test
— Small footprint package - Exposed pad 44-pin LQFP
— Minimal external discrete components required
Integrated Power Management
— Integrated high voltage switching regulator controller
– 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
Ringing
— 5 REN with pin for pin compatible 100-V (Le88111) and
150-V (Le88131) devices
— Up to 140-Vpk internal balanced sinusoidal or
trapezoidal ringing with programmable DC offset
— Unbalanced ringing for PBX trunk compatibility
(Le88131 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 four 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 (Le88131)
Integrated 150 mW 3-V or 5-V Relay Driver
VOICEPORT™ BLOCK DIAGRAM
TIPD
TIPT
RINGT
RINGD
TAC
RAC
RTV
RSN
LFC
IHL
TDC
RDC
High Voltage
Line Driver
PLL
PCLK/DCL
FS/FSC
GCI Interface
(GCI)
DXA/DU
DRA/DD
Voice Signal
Processing
Signaling
Control
Supervision
Processing
Signal
Generation
PCM Interface
and Time Slot
Assigner
(PCM)
2
Input / Output
I/O
2
- I/O
1
DCLK/S0
DIN/S1
VBAT
SWCMPY
SWVSY
SWISY
SWOUTY
Microprocessor
Interface
(MPI)
DOUT
CS/PG
INT/S2
RST
IREF
VREF
Switching
regulator
controller
Analog
Reference
Document ID#
081200
Date:
Rev:
B
Version:
Distribution:
Public Document
Sep 28, 2007
2
Le88111/131
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
081165 Le88111/131 VoicePort™ Device Data Sheet*
*Contact your
Sales Representative to obtain the data sheet.
Packaging and Availability
See
Ordering Information
on first page.
For More Information:
To find the
Sales Office nearest you, visit our website at
www.
.com
2
Zarlink Semiconductor Inc.
For more information about all Zarlink products
visit our Web Site at
www.zarlink.com
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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
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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
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