The DS25BR150TSD, manufactured by National Semiconductor (now Texas Instruments), is a 3.125 Gbps High-Performance Signal Conditioner with Transmit De-Emphasis and input equalization. This device is designed to extend the signaling distance and improve signal integrity in high-speed data transmission systems, supporting higher data rates than the DS25BR100/110 series. It compensates for Inter-Symbol Interference (ISI) introduced by cables and backplanes, ensuring reliable data transfer. Note that this part is designated as END-OF-LIFE.

Applications:

• Backplanes: Used in backplane applications to improve signal integrity and extend transmission distances at higher data rates.
• Cable Extension: Employed to extend the reach of cables in high-speed data links operating up to 3.125 Gbps.
• High-Speed Data Transmission: Suitable for applications requiring reliable data transfer at speeds up to 3.125 Gbps.
• Storage Systems: Incorporated in storage systems to enhance signal quality in data paths where higher bandwidth is needed.
• Networking Equipment: Used in networking equipment to improve signal integrity over longer distances at increased speeds.

Features:

• 3.125 Gbps Operation: Supports data rates up to 3.125 Gbps.
• Transmit De-Emphasis: Compensates for ISI by pre-emphasizing the transmitted signal.
• Input Equalization: Recovers signals degraded by ISI before retransmission.
• Low Power Consumption: Minimizes power consumption, making it suitable for power-sensitive applications.
• Adjustable De-Emphasis Levels: Allows for fine-tuning of the de-emphasis to optimize signal integrity.

Benefits:

• Improved Signal Integrity: Enhances signal quality by compensating for ISI with both de-emphasis and equalization at higher data rates.
• Extended Transmission Distance: Increases the distance over which reliable data transmission can occur at 3.125 Gbps.
• Reduced Bit Error Rate (BER): Lowers the BER by improving signal quality.
• Simplified System Design: Simplifies the design of high-speed data links operating at higher speeds.
• Enhanced System Reliability: Improves the overall reliability of the data transmission system.

Additional Details:

The DS25BR150TSD operates from a 3.3V supply. The combination of input equalization and transmit de-emphasis makes it highly effective in mitigating ISI in demanding high-speed environments. The device is available in a space-saving package. As this part is designated as END-OF-LIFE, consider alternative solutions for new designs when implementing new higher speed interfaces.