EL1528CL

Overview

The EL1528CL is a dual-channel differential DSL line driver manufactured by Elantec Semiconductor. It integrates two independent ADSL transceivers within a single package, designed for high-performance digital subscriber line applications. The device supports ADSL and ADSL2 standards over standard telephone lines. Key electrical parameters include a supply voltage range of 4.75V to 5.25V and an operating temperature range from -40°C to +85°C. It features low power consumption with typical active mode current draw of 130mA per channel. The component utilizes a 20-pin HTSSOP surface-mount package.

Feature Summary

• Dual integrated ADSL transceiver channels for cost-effective board space reduction
• Supports ADSL and ADSL2 modulation standards for flexible deployment
• Integrated analog front-end circuitry reduces external component count
• Low power operation suitable for battery-backed or energy-efficient systems

Applications

• ADSL modem designs for residential gateways
• Digital Subscriber Line Access Multiplexer (DSLAM) interface cards
• Enterprise broadband access equipment
• Network infrastructure requiring dual-port DSL connectivity

Procurement Notes

Verify the manufacturer origin as Elantec Semiconductor, noting that subsequent corporate acquisitions may affect documentation availability. Confirm the specific suffix 'CL' denotes the commercial temperature grade and lead-free status according to official datasheets. Request RoHS compliance certificates and material declarations directly from authorized distributors or the current rights holder to ensure regulatory adherence for modern manufacturing environments.

Selection Notes

Select this component when designing systems requiring dual-channel ADSL capability in a compact form factor. Ensure the design accommodates the 20-pin HTSSOP footprint and thermal requirements associated with the specified operating temperature range. Verify compatibility with the target network protocol stack, specifically ADSL and ADSL2 support. Consider power supply stability given the 5V nominal requirement and transient current demands during transmission bursts.

Part Context

Elantec Semiconductor was a prominent designer of mixed-signal semiconductor products before being acquired by Integrated Device Technology (IDT), which was subsequently acquired by Renesas Electronics. The EL1528 series represents a generation of integrated DSL solutions developed during the peak adoption of ADSL technology. While newer generations like ADSL2+ exist, this part remains relevant for legacy system maintenance and specific industrial applications requiring proven dual-channel performance.

Replacement Considerations

Publicly confirmed direct substitute part numbers are not available in the provided reference data. Designers should consult current Renesas or IDT product portfolios for updated ADSL controller alternatives. Cross-referencing pinouts and electrical specifications with newer generation components is necessary if migrating to modern ADSL2+ or VDSL solutions.