DS90UB921TRHSTQ1

Overview

The DS90UB921TRHSTQ1 is an automotive-grade FPD-Link III serializer manufactured by Texas Instruments. It converts parallel LVCMOS video data into a high-speed serial stream for transmission over a single coaxial cable or differential pair. The device supports pixel clock frequencies from 5 MHz to 96 MHz and achieves a maximum serial data rate of 3.36 Gb/s. It operates within a supply voltage range of 3 V to 3.6 V, with a typical operating current of 148 mA at 3.3 V. The component is qualified to AEC-Q100 standards and functions reliably across an extended temperature range of -40°C to +105°C. It is housed in a compact 48-pin WQFN package designed for surface-mount installation.

Feature Summary

• Integrates a bidirectional control channel (BCC) enabling remote I2C configuration of downstream deserializers and display panels via the primary video link.
• Includes an internal test pattern generator (TPG) to facilitate system validation and signal integrity verification without external video sources.
• Supports flexible input configurations for RGB, YCbCr, and raw parallel video formats with programmable lane mapping and timing adjustments.

Applications

• Automotive instrument cluster displays requiring high-definition video transmission.
• Center console infotainment screens and rear-seat entertainment systems.
• Digital side-view mirror camera systems (CMS) and surround-view monitor implementations.

Procurement Notes

Verify that the ordering suffix matches the required tape-and-reel quantity specifications. Confirm AEC-Q100 qualification status is explicitly stated for the target automotive application tier. Ensure ESD protection handling procedures are followed during assembly due to moisture sensitivity classification. Cross-reference the specific revision level against the latest datasheet errata to guarantee compatibility with existing firmware drivers.

Selection Notes

Select this serializer when interfacing parallel LVCMOS sources to FPD-Link III deserializers such as the DS90UB925 or DS90UB926. Evaluate the maximum supported pixel clock frequency against the source resolution requirements to ensure the 96 MHz limit is sufficient. Consider the power consumption profile relative to thermal constraints within the enclosed automotive housing. Verify that the single-lane output architecture aligns with the available coaxial cabling infrastructure.

Part Context

This component belongs to the DS90UB92x series of FPD-Link III serializers, designed specifically for automotive cockpit connectivity. It complements the DS90UB92x family of deserializers to form complete point-to-point video links. The Q1 suffix denotes compliance with automotive reliability standards, distinguishing it from commercial variants intended for industrial or consumer electronics environments.

Replacement Considerations

The DS90UB921TRHST is the non-automotive commercial equivalent of this part number. For pin-compatible upgrades within the same family, consider the DS90UB923 or DS90UB924 serializers, ensuring their respective feature sets match the specific bandwidth and control channel requirements of the design.