LE88221DLC

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 FEATURES „ Complete BORSCHT function in a single VoicePortTM „ „ „ „ „ „ „ „ „ 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) ORDERING INFORMATION Device Package Le88221DLC 80-pin eLQFP (Green package*) Le88241DLC *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 dualchannel 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 costeffective, full-featured Voice over Broadband solutions. VOICEPORT™ DEVICE BLOCK DIAGRAM VBL VBM VBH TIPD 1 TIPT 1 RINGT 1 RINGD 1 TAC 1 RAC 1 RTV 1 Voice Signal Processing LFC 1 RSN 1 IHL 1 Signaling Control TDC 1 RDC 1 Supervision Processing Signal Generation Signal Generation RDC 2 TDC 2 Supervision Processing IHL 2 RSN 2 LFC 2 Signaling Control RTV 2 RAC 2 TAC 2 Voice Signal Processing RINGD 2 RINGT 2 TIPT 2 TIPD 2 High Voltage Line Driver VBL VBM VBH PCLK/DCL PLL High Voltage Line Driver FS/FSC DXA/DU DRA/DD GCI Interface (GCI) PCM Interface and Time Slot Assigner (PCM) Input / Output Microprocessor Interface (MPI) Switching regulator controllers Analog Reference VREF TSCA 4 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 IREF Document ID# 081199 Date: Rev: A Version: Distribution: Public Document Sep 28, 2007 2 Product Brief Le88221/241 FEATURES BENEFITS • Highest level of integration • Reduces system BOM and discrete component count • Smallest footprint • Saves board space • 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 • Lowest power solution across all operating modes • Provides best solution for battery-backed and powersensitive applications • Highly programmable • Offers design flexibility to develop one application for worldwide markets • Integrated ring cadencing and system state control • Reduces real-time software overhead • Comprehensive line sensing • Enables high performance 909 diagnostics and subscriber loop test and self test support • Integrated switching regulator • Enables lowest component count and highest efficiency in all states of operation 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. 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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 I2C components conveys a license under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C 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