LE88221 Zarlink Semiconductor, LE88221 Datasheet

LE88221

Manufacturer Part Number

LE88221

Description

Manufacturer

Zarlink Semiconductor

Datasheet

1.LE88221.pdf (3 pages)

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APPLICATIONS

FEATURES

Voice enabled Cable and DSL Modems

Voice over IP/ATM - Integrated Access Devices (IAD)

Smart Residential Gateways (SRG) and Routers

Media Terminal Adapters (MTA)

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

Complete BORSCHT function in a single VoicePort

device for two channels

— Battery Feed, Over-voltage support, integrated

— Small footprint package - Exposed pad 80-pin LQFP

— Minimal external discrete components required

Integrated Power Management

— Integrated high voltage switching regulator controllers

— Low power Idle and On-hook transmission states

Ringing

— 5 REN with pin for pin compatible 100-V (Le88221) and

— Up to 110-Vpk internal balanced sinusoidal or

— Unbalanced ringing for PBX trunk compatibility

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

— Test load switch (Le88241)

Integrated 150 mW 3-V or 5-V Relay Driver

Pin-compatible wide band version available (16-kHz

sampling mode)

Ringing, line Supervision, Codec, Hybrid (2W/4W), Test

120-V (Le88241) devices

trapezoidal ringing with programmable DC offset

(Le88241 device)

– Wide input voltage range (VSW =+3.3V to +35 V)

– Generates supplies for VBH, VBM & VBL

– Loop supervision, AC/DC faults

Dual Channel Automatic Battery Switching (ABS) VoicePort™ Device

Standalone & Embedded

ORDERING INFORMATION

*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.

VOICEPORT™ DEVICE BLOCK DIAGRAM

Le88221DLC

Le88241DLC

RINGD

RINGT

TIPD

RSN

TDC

RSN

TIPD

TIPT

RAC

RTV

RDC

RTV

RAC

TIPT

TAC

LFC

TDC

LFC

TAC

IHL

Device

VBL

High Voltage

Voice Signal

Processing

Supervision

Processing

Supervision

Processing

Line Driver

Generation

Line Driver

Signaling

Control

Signal

VBM VBH

Document ID# 081199

Rev:

Distribution:

VE880 Series

80-pin eLQFP (Green package*)

VREF

Microprocessor

PCM Interface

and Time Slot

GCI Interface

Input / Output

controllers

Reference

Switching

Assigner

Interface

regulator

Analog

(PCM)

(MPI)

(GCI)

PLL

Public Document

IREF

Package

Le88221/241

Date:

Version: 2

Product Brief

Sep 28, 2007

PCLK/DCL

FS/FSC

DXA/DU

DRA/DD

TSCA

I/O2

DCLK/S0

DIN/S1

DOUT

CS/PG

INT/S2

RST

SWCMPY

SWVSY

SWISY

SWOUTY

SWCMPZ

SWVSZ

SWISZ

SWOUTZ

- I/O1

Related parts for LE88221

LE88221 Summary of contents

Page 1

... 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 — 110-Vpk internal balanced sinusoidal or trapezoidal ringing with programmable DC offset — ...

Page 2

... 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* ...

Page 3

... For more information about all Zarlink products 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 ...

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