The Zarlink Le88004 and Le88005 are PCM/SPI to ZSI bus translators. They enable host processors to communicate with Subscriber Line Audio Controllers (SLACs) through the 4-wire ZSI interface for lower isolation cost. These devices feature programmable SPI and PCM interface ports that are compatible with leading xDSL system-on-chip (SoC), communications processors and DSPs. The Le88005 features a secondary ZSI port for communicating with a second dual channel SLAC.

Features & Benefits

• Economical and Flexible PCM/SPI to ZSI Bus Translator
• Simple four-wire Zarlink Serial Interface (ZSI)
• Optimized for signal isolation
• Single ZSI (Le88004) and Dual ZSI (Le88005) Versions
• 8.192 MHz Maximum PCLK and DCLK Frequencies
• Supports SPI Modes 0 and 3
• Compatible with 2-, 3-, and 4-Wire SPI Interfaces
• Compatible with Zarlink MPI Interface
• Programmable PCM Time Slot Assigner
• Programmable Delays for Compatibility with Popular SoCs and Digital Isolators
• Compatible with Low-Cost 1 Mbps Quad Channel Digital Isolators
• Integrated PLL
• Low-Power CMOS Technology
• 10 mA typical current at 3.3 V
• Available in 16-SOIC (Le88004) or 20-SOIC (Le88005) RoHS-Compliant, Pb-Free Packages
• Supported by Reference Designs and Software

Documentation

• LE88004/005 - PCM/SPI to ZSI Bus TranslatorPlease login to access protected documents.

Design Manuals

Software Manuals

Downloads, Firmware and Drivers

IBIS Models:
• LE88004 IBIS Model

Reference Designs

• Le71HR1865G Reference Design User Guide for the Le88264 VoicePort DevicePlease login to access protected documents.
• Le71HR8830G Reference Design User Guide for the VE8830 VoicePort ChipsetPlease login to access protected documents.
• Le71HR8822G/8832G Reference Design User Guide for the VE8820/VE8830 VoicePort ChipsetsPlease login to access protected documents.

Software URLs

• LE71SDKZTAP-ZTAP Support Package
• LE71SK0002: VoicePath API-II Software
• LE880SLVVP: VERIVOICE PROFESSIONAL
• LE880SLVV: VERIVOICE AUDITOR
• LE71SDKWIN: WinSLAC
• LE71SDKTK: Zarlink Toolkit
• LE71SDKPRO: Profile Wizard

Typical Applications

• xDSL Gateways with POTS Signal Re-Injection
• Galvanically-Isolated Voice IADs

Product Packaging & Availability

Part Number	Package Type	Pin Count	Lead-Free Option	Shipping Option(s)	Lead Time(wks)	Status

Packaging Information

• Soldering Profiles
• Moisture Sensitivity
• Shelf Life
• Reliability Data

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