LE88004
PCM/SPI to ZSI Bus Translator
Product is discontinued and not allowed for new designs.
Overview
| The 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. |
Simplified Block Diagram
Features & Benefits
- Economical and Flexible PCM/SPI to ZSI Bus Translator
- Simple four-wire 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 Microsemi 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
