LE58QL02FJC

Telecom Overview

The LE58QL02FJC is a Quad Low Voltage Subscriber Line Audio-Processing Circuit (QLSLAC) manufactured by Microchip Technology. It integrates four independent codec and filter channels for telecommunications applications. The device operates on low-voltage 3.3 V CMOS technology with 5-V tolerant digital inputs. It supports A-law, µ-law, or linear coding formats and features a standard microprocessor interface. The component is housed in a 44-pin PLCC package.

Telecom Feature Summary

• Performs functions of four independent codec/filters with software programmable gains, equalization, and transhybrid balance.
• Supports single or dual PCM highway configurations with up to 128 channels per port.
• Includes built-in test modes such as loopback, tone generation, and microprocessor access to PCM data.
• Compatible with Legerity SLIC devices for complete BORSCHT function implementation.

Telecom Applications

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

Telecom Procurement Notes

Verify the specific ordering suffix 'F' against the manufacturer's current documentation to confirm package type and environmental compliance status. Confirm availability as this component series may be subject to discontinuation notices. Ensure compatibility with existing system clocking requirements before procurement.

Telecom Selection Notes

Select this component when designing subscriber line cards requiring four-channel audio processing. Verify that the system utilizes a 3.3 V logic level or requires 5-V tolerant inputs. Ensure the design accommodates the 44-pin PLCC footprint and supports the necessary serial microprocessor interface protocol for configuration.

Telecom Part Context

This device belongs to the Le58QL02/021/031 QLSLAC family from Zarlink/Microchip. It is software and coefficient compatible with the Le79Q02/021/031 QSLAC devices. The family provides cost-effective solutions for maximizing line card density through advanced submicron CMOS technology.

Telecom Replacement Considerations

The Le58QL021FJC is a related variant within the same datasheet offering single PCM highway functionality in a 44-pin PLCC package. Designers should verify pinout compatibility and functional differences regarding PCM highway configuration before substitution.