Catalog
Enhanced Dual Ch FXS Wideband VoicePort
Key Features
• * Next Generation ZL880 VoicePort Family with Enhanced Features and Performance
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• + Same API interface as the VE880 Series
• + 35% lower BOM cost than previous generation
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• * Complete BORSCHT Functions for Two FXS Channels in a Single 64-Pin QFN Package
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• + Battery feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2W/4W), and Test
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• * Integrated Power Management
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• + Switching power supply tracks line voltage minimizing active and ringing power dissipation
• + Low Power Idle Mode with <50 mW consumption
• + Internal FET drive circuit for lower BOM count
• + Integrated real-time power monitoring tool
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• * Ringing
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• + 5 REN with pin for pin compatible 100-V (ZL88701) and 150-V (ZL88702) devices
• + Up to 140-VPK internal sinusoidal or trapezoidal ringing with programmable DC offset
• + Adaptive ringing for lower power
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• * Worldwide Programmability
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• + Input impedance, balance impedance, gain
• + DC feed voltage and current limit
• + Ringing frequency, voltage and current limit
• + G.711 A-law, µ-law, or 16 bit linear coding
• + Call progress tone and Caller ID generation
• + Sample coefficients for more than 70 countries
• + Per channel Wideband support
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• * Pin-Selectable PCM/SPI or ZSI Interfaces
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• + SPI Mode 0 and 3 support with no inter byte CS off time. Also supports legacy MPI Interface
• + ZSI Mode for a smaller number of interface signals to the host and less expensive isolation
Description
AI
The Microchip Dual channel ZL88702 Tracking Battery Wideband VoicePort Device provides complete BORSCHT functions for two telephone line FXS ports. This device is a part of the new ZL880 Series featuring enhanced functionality, lower BOM cost, and greater power efficiency, while maintaining software compatibility with the industry leading VE880 Series.