DS90LV028AQDQFTQ1

Overview

The DS90LV028AQDQFTQ1 is an automotive-grade LVDS dual differential line receiver from Texas Instruments. It operates on a 3.3 V supply (3.0 V to 3.6 V) and supports data rates exceeding 400 Mbps. The device features a maximum propagation delay of 2.5 ns, with typical differential skew at 50 ps and channel-to-channel skew at 0.1 ns. It accepts LVDS, CML, or LVPECL inputs and converts them to 3 V CMOS outputs. Packaged in an 8-pin WSON (DQF) measuring 2.00 mm x 2.00 mm, it functions within a temperature range of -40°C to +105°C.

Feature Summary

• AEC-Q100 qualified for Grade 2 automotive applications
• Low power design with 18 mW static dissipation at 3.3 V
• Flow-through pinout for simplified PCB layout
• Power-down high impedance state on LVDS inputs

Applications

• Electronic point of sale (EPOS) systems
• Automotive infotainment and instrument clusters
• Automotive head unit interfaces

Procurement Notes

Verify the specific ordering suffix DQFTQ1 corresponds to the WSON-8 package with a 250-unit small tape and reel quantity. Confirm that the AEC-Q100 Grade 2 qualification (-40°C to +105°C) matches the target automotive environment requirements before finalizing procurement orders.

Selection Notes

Select this component when designing high-speed point-to-point interfaces requiring ultra-low power consumption and noise immunity. Ensure the system utilizes controlled 100 Ω differential impedance traces and proper termination resistors near the receiver inputs to maintain signal integrity at speeds above 400 Mbps.

Part Context

This part belongs to the DS90LV028A-Q1 family of automotive LVDS receivers. It serves as the complementary receiver to the DS90LV027AQ driver, providing a low-power alternative to traditional PECL or ECL technologies in automotive electronic architectures.

Replacement Considerations

The catalog version DS90LV028ATLD/NOPB offers similar electrical performance but lacks automotive qualification and has a limited operating temperature range of -40°C to +85°C.

FAQ

What input signal types does the DS90LV028AQDQFTQ1 accept?

The device accepts LVDS, CML, and LVPECL signals via its differential input pins.

How is the common-mode voltage handled by the receiver?

The receiver detects signals over a common-mode range of 0.5 + (VID/2) V to 2.1 - (VID/2) V, accommodating ground potential differences between driver and receiver.

What is the recommended termination resistance value?

A single termination resistor between 90 Ω and 110 Ω should be placed across the differential pair as close to the receiver inputs as possible.