TB5R1DW

Drivers, Receivers, Transceivers Overview

The TB5R1DW is a quad differential PECL receiver manufactured by Texas Instruments. It accepts digital data over balanced transmission lines and translates differential input logic levels to TTL output logic. The device operates with a single 5-V ±10% supply voltage, ranging from 4.5 V to 5.5 V. It features a high input impedance of approximately 8 kΩ and provides 50-mV hysteresis for noise immunity. The maximum propagation delay is 4 ns. The unit includes ESD protection rated at greater than 3 kV HBM and 2 kV CDM. It functions as a pin- and function-compatible replacement for the Agere BRF1A. The component is housed in a 16-pin SOIC (D) package.

Drivers, Receivers, Transceivers Feature Summary

• Translates differential PECL input signals directly to standard TTL output logic levels
• Provides 50-mV differential input threshold hysteresis for enhanced signal integrity
• Includes internal pullup resistors on enable inputs to ensure logical high when open
• Offers high input impedance to minimize loading effects on transmission lines

Drivers, Receivers, Transceivers Applications

• Digital data transmission over balanced lines
• Clock distribution systems
• Functional replacement for legacy Agere BRF1A components

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the gull-wing SOIC package configuration required for your PCB layout. Confirm that the NiPdAu lead finish meets your soldering process specifications. Ensure the operating temperature range of -40°C to 85°C aligns with your system's environmental requirements before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a direct functional replacement for the Agere BRF1A is needed within a 5-V logic environment. The TB5R1 variant is appropriate for applications requiring standard differential thresholds without offset. Verify that the 16-pin SOIC footprint matches your existing board design constraints and thermal management capabilities.

Drivers, Receivers, Transceivers Part Context

The TB5R1DW belongs to the TB5R1/TB5R2 family of quad differential receivers designed for high-speed digital interfaces. This series serves as a bridge between PECL drivers and TTL-based receiving logic. The TB5R1 specifically targets systems requiring standard differential thresholds, distinguishing it from the TB5R2 which includes a -125-mV threshold offset.

Drivers, Receivers, Transceivers Replacement Considerations

This device is documented as a functional replacement for the Agere BRF1A. Designers should verify pin compatibility and electrical characteristics against the original component datasheet to ensure seamless integration.