LE58QL031DJC Model Information

Overview

The LE58QL031DJC is a high-performance, low-voltage subscriber line audio-processing circuit, part of the QLSLAC™ series. It integrates essential functions of analog line cards into a compact, programmable four-channel codec-filter device. Designed with advanced submicron CMOS technology, it offers a cost-effective and power-efficient solution for audio-processing in telecommunication equipment.

Key Features

• Low Power Consumption: Operates on a low-power 3.3 V CMOS technology, making it suitable for applications requiring energy efficiency.
• Software Programmability: Allows for extensive customization through software, including control of SLIC device input impedance, transhybrid balance, transmit and receive gains, equalization, digital I/O pins, and more.
• Codec and Filter Integration: Performs the functions of four independent codec/filters, enabling efficient processing of audio signals.
• Compatibility: Software and coefficient compatible with the Le79Q02/021/031 QSLAC™ device, facilitating seamless integration and upgrades.
• Digital I/O Pins: Provides digital I/O pins that can be programmed for various functions, enhancing the flexibility of the device.
• Built-in Test Modes: Includes built-in test modes with loopback, tone generation, and µP access to PCM data, aiding in testing and diagnostics.
• Impedance Scaling: Supports mixed state (analog and digital) impedance scaling, allowing for precise control of impedance levels.
• Performance Guarantee: Ensures performance over a 12 dB gain range, providing reliable audio processing capabilities.
• Real-Time Data Register: Features a real-time data register with interrupt functionality, enabling efficient monitoring and data handling.
• Support for Multiplexed SLIC Device Outputs: Can support multiplexed SLIC device outputs, increasing the versatility of the device.
• Chopper Clock: Offers a 256 kHz or 293 kHz chopper clock for use with Legerity SLIC devices featuring switching regulators.

Applications

The LE58QL031DJC is designed for use in telecommunication equipment, particularly in telephone switch line cards. It provides the necessary audio-processing functions, such as codec operations and filtering, for subscriber line interface circuits.

Package Information

• Package Type: 32-pin PLCC (Plastic Leaded Chip Carrier)
• RoHS Compliance: The green package meets the RoHS Directive 2002/95/EC, minimizing the environmental impact of electrical equipment.

Ordering Information

When ordering the LE58QL031DJC, consider the following:

• For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number).

Related Literature

For further information and guidance on using the LE58QL031DJC, refer to the following documents:

• 080754 Le58QL061/063 QLSLAC™ Device Data Sheet
• 080761 QSLAC™ to QLSLAC™ Device Design Conversion Guide
• 080758 QSLAC™ to QLSLAC™ Guide to New Designs