EL1537IREZ-T13

Overview

The EL1537IREZ-T13 is a dual-channel DSL line driver manufactured by Elantec Semiconductor, now part of Renesas Electronics. It operates on a single 12V supply and supports the ADSL protocol for high-speed data transmission over copper telephone lines. The device is housed in a 28-pin HTSSOP package with an exposed pad for thermal management. It is rated for industrial temperature ranges from -40°C to +85°C. This component integrates two drivers designed to interface directly with DSL transceivers, providing the necessary signal conditioning and amplification for reliable communication standards.

Feature Summary

• Dual-channel architecture supporting simultaneous upstream and downstream signal processing
• Integrated protection circuitry for robust operation in harsh electrical environments
• Optimized for low power consumption during active transmission states
• Designed for direct compatibility with standard ADSL modem architectures

Applications

• ADSL modem line interface units
• Digital Subscriber Line Access Multiplexers (DSLAM)
• High-speed internet gateway hardware
• Telecommunications infrastructure equipment

Procurement Notes

Verify the manufacturer revision level and date code upon receipt to ensure compliance with current RoHS directives. Confirm that the HTSSOP-28 package matches the footprint requirements of the target PCB design. Check for any specific handling instructions related to the exposed thermal pad to prevent soldering defects during assembly.

Selection Notes

Select this component when designing systems requiring dual-channel DSL driving capabilities within a compact surface-mount form factor. Ensure the system power supply can maintain a stable 12V rail under peak load conditions. Verify that the operating temperature range aligns with the environmental constraints of the intended deployment location.

Part Context

Elantec Semiconductor was acquired by Intersil, which subsequently merged with Renesas Electronics. The EL1537 series represents legacy ADSL driver technology from this lineage. While newer integrated solutions exist, this part remains relevant for maintaining existing telecommunications designs and replacement scenarios in established infrastructure.

Replacement Considerations

Direct pin-to-pin replacements may include the EL1537AIRZ or variants from the same Elantec/Renesas family. Cross-reference datasheets carefully as external component values for gain setting and filtering may differ between revisions. No third-party equivalents are publicly confirmed without detailed schematic analysis.