TXV0106QWBQBRQ1

Overview

The TXV0106QWBQBRQ1 is an automotive-grade, six-bit fixed-direction voltage translator and buffer manufactured by Texas Instruments. It operates with dual configurable power supplies ranging from 1.14V to 3.6V on both ports. The device supports data rates up to 500Mbps for voltages between 1.65V and 3.6V, while meeting RGMII 2.0 timing specifications at 250Mbps per channel. Key electrical parameters include a propagation delay of 1.1ns to 4.8ns depending on supply conditions, low channel-to-channel skew under ±450ps, and peak-to-peak jitter as low as 75ps. It features high drive strength up to 12mA and low quiescent current of 14µA.

Feature Summary

• Supports high-speed translation up to 500Mbps with optimized signal integrity for skew-sensitive interfaces like RGMII.
• Features integrated VCC isolation and disconnect capabilities to prevent current backflow during asynchronous power-up or partial-power-down states.
• Includes Ioff circuitry that forces outputs to a high-impedance state when powered down, protecting against damaging current flow.
• Utilizes wettable flank WQFN packaging to enhance solder joint reliability and facilitate automated optical inspection.

Applications

• Medium or short range radar systems
• ADAS domain controllers
• HVAC controller designs
• Machine vision cameras
• Rack server motherboards

Procurement Notes

Verify the specific suffix QWBQBRQ1 matches the required BQB (WQFN) package with wettable flanks and tape-and-reel quantity. Confirm AEC-Q100 qualification status for automotive deployment. Ensure design compatibility with the 1.14V to 3.6V dual-supply operating range and check thermal resistance requirements for the target PCB layout.

Selection Notes

Select this component for applications requiring fixed-direction translation between asymmetric voltage domains with strict timing constraints. It is suitable where RGMII compliance is necessary. Consider the 10Ω internal damping resistor for impedance matching needs. Evaluate the trade-off between the 500Mbps maximum rate and the 250Mbps rate required for full RGMII 2.0 timing adherence.

Part Context

This part belongs to the TXV0106-Q1 family of low-skew, low-jitter voltage translators designed specifically for automotive environments. It serves as a redriving and buffering solution for Ethernet MAC and PHY connections. The device distinguishes itself through its symmetric dual-rail design and robust protection features against power sequencing issues common in complex system architectures.

Replacement Considerations

Consult official substitution guides for equivalent Texas Instruments level shifters. Verify pinout compatibility and electrical characteristics before replacing.

FAQ

How does the device handle asynchronous power-up between VCCA and VCCB?

The VCC isolation and disconnect features force all I/O pins to a high-impedance state if either supply drops below 100mV or floats, preventing current backflow without consuming power from the active rail.

What is the maximum data rate supported for RGMII applications?

While the device supports up to 500Mbps generally, it must operate at 250Mbps per channel to strictly meet RGMII 2.0 timing specifications regarding rise/fall times, skew, and duty cycle distortion.