LE58QL061BVCT

Telecom Overview

The LE58QL061BVCT is a Quad Low Voltage Subscriber Line Audio-Processing Circuit (QLSLAC) manufactured by Microchip Technology. It integrates four independent codec/filter channels for telecommunications applications. The device operates on low-power 3.3 V CMOS technology with 5 V tolerant digital inputs. It supports pin-programmable PCM/MPI or GCI interfaces and includes a Time Slot Assigner capable of handling up to 128 channels per port. The component accepts master clocks of 1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144, 6.176, or 8.192 MHz. It provides software programmable SLIC input impedance, transhybrid balance, gains, equalization, and supports A-law, µ-law, or linear coding.

Telecom Feature Summary

• Integrates four independent audio processing channels performing codec and two-to-four-wire conversion functions.
• Supports flexible interface modes including standard PCM/microprocessor interface and General Circuit Interface.
• Features software-configurable digital filters for transmission, impedance matching, and transhybrid balancing.
• Includes built-in test modes such as loopback and tone generation with microprocessor access to PCM data.

Telecom Applications

• Codec function implementation on telephone switch line cards
• Subscriber line interface circuitry in telecommunications equipment
• Audio-processing circuits for programmable line cards

Telecom Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packing when sourcing this component. Confirm that the base part number corresponds to the 44-pin TQFP package variant. Ensure compatibility with existing Zarlink SLIC devices if implementing a complete BORSCHT solution. Check for any product change notifications regarding the manufacturing source.

Telecom Selection Notes

Select this component for designs requiring four-channel subscriber line audio processing with low power consumption. Ensure the system architecture supports either PCM/MPI or GCI interface protocols. Verify that the available master clock frequencies align with the required network standards. Consider the software coefficient compatibility with legacy QSLAC designs if migrating from older architectures.

Telecom Part Context

This device belongs to the Le58QL061/063 Ve580 Series, which are Quad Low Voltage Subscriber Line Audio-Processing Circuits. It is based on the proven design of Zarlink’s reliable SLAC device families. The QLSLAC devices are software and coefficient compatible with the QSLAC series, allowing for design reuse while offering advanced submicron CMOS technology benefits.

Telecom Replacement Considerations

Public confirmed substitute part numbers: LE58QL061BVC.