Product
Single Channel Wideband VoicePort™ Device
Le88116/136
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
Le88116BLC*
Le88136BLC
*Green Package. meets RoHS Directive 2002/95/EC of the European
Council to minimize the environmental impact of electrical equipment.
DESCRIPTION
The
Le88116/136 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 (Le88116) and
150-V (Le88136) devices
— Up to 140-Vpk internal balanced sinusoidal or
trapezoidal ringing with programmable DC offset
— Unbalanced ringing for PBX trunk compatibility
(Le88136 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
Wideband 16 kHz sampling mode
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
— Test load switch (Le88136)
Integrated 150 mW 3-V or 5-V Relay Driver
VOICEPORT™ BLOCK DIAGRAM
TIPD
TIPT
RINGT
RINGD
TAC
RAC
RTV
LFC
RSN
IHL
TDC
RDC
Voice Signal
Processing
Signaling
Control
Supervision
Processing
Signal
Generation
High Voltage
Line Driver
GCI Interface
(GCI)
PLL
PCLK/DCL
FS/FSC
DXA/DU
DRA/DD
PCM Interface
and Time Slot
Assigner
(PCM)
2
TSCA
I/O
2
- I/O
1
DCLK/S0
DIN/S1
Input / Output
VBAT
SWCMPY
SWVSY
SWISY
SWOUTY
Microprocessor
Interface
(MPI)
DOUT
CS/PG
INT
RST
IREF
VREF
RREF
Switching
regulator
controller
Analog
Reference
.
Document ID#
081235
Date:
Rev:
B
Version:
Distribution:
Public Document
Sep 28, 2007
2
Le88116/136
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
081206 Le88116/136 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
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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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