5-96 MHz 24-bit Color FPD-Link III Serializer



Product details


Function Serializer Color depth (bpp) 24 Input compatibility LVCMOS Pixel clock frequency (Max) (MHz) 96 Output compatibility FPD-Link III LVDS Features FPD-Link III Coax, I2C Config, I2S Audio, Pattern Generator, Remote Interrupt Pin Mirroring Signal conditioning DC Balance EMI reduction SSC Compatible Diagnostics BIST Operating temperature range (C) -40 to 105 open-in-new Find other FPD-Link SerDes

Package | Pins | Size

WQFN (RHS) 48 49 mm² 7 x 7 open-in-new Find other FPD-Link SerDes


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to +105°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level ±8kV
    • Device CDM ESD Classification Level C6
  • Supports Extended High Definition
    (1920x720p/60Hz) Digital Video Format
  • 5 – 96MHz PCLK Supported (STP mode)
  • 15 – 96MHz PCLK Supported (Coax mode)
  • RGB888 + VS, HS, and DE
  • Parallel LVCMOS Video Inputs
  • Spread Spectrum Tolerant Input
  • 4 Optional Bidirectional GPIO Channels
  • Bidirectional Control Interface Channel Interface
    with I2C Compatible Serial Control Bus
  • Optional I2S Support
  • AC-Coupled Coax or STP Interconnect Up to 10
  • Single 3.3 V Operation with 1.8 V or 3.3 V
    Compatible LVCMOS I/O Interface
  • DC-Balanced and Scrambled Data with
    Embedded Clock
  • Internal Pattern Generation
  • Low Power Modes Minimize Power Dissipation
  • >8kV ISO 10605 ESD Rating
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The DS90UB921-Q1 serializer, in conjunction with a DS90UB922-Q1, DS90UB926Q-Q1, DS90UB928Q-Q1, DS90UB948-Q1, or DS90UB940-Q1 deserializer, provides a complete digital interface for concurrent transmission of high-speed video, audio, and control data for automotive display and image sensing applications.

The chipset is ideally suited for automotive video-display systems with WVGA and HD formats. The DS90UB921-Q1 incorporates an embedded bidirectional control channel and low latency GPIO controls. This chipset translates a parallel interface into a single pair high-speed serialized interface. The serial bus scheme, FPD-Link III, supports full duplex of high-speed video data transmission and bidirectional control communication over a single link. Consolidation of video data and control over a single differential pair (or single wire) reduces the interconnect size and weight, while also eliminating skew issues and simplifying system design.

The DS90UB921-Q1 serializer embeds the clock, DC scrambles & balances the data payload, and level shifts the signals to high-speed low voltage differential (or single-ended) signaling. Up to 24 data bits are serialized along the video control signals.

EMI is minimized by the use of low voltage swing signaling, data scrambling and randomization and spread spectrum clocking compatibility.

Remote interrupts from the downstream deserializer are mirrored to a local output pin.

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Technical documentation

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Type Title Date
* Data sheet DS90UB921-Q1 5 - 96 MHz 24-bit Color FPD-Link III Serializer with Bidirectional Control Channel datasheet Mar. 22, 2016
Technical article How to choose a power supply for an automotive camera module Sep. 17, 2020
User guide DS90UB921-Q1EVM User's Guide Mar. 22, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The DS90UB921-Q1 serializer, in conjunction with a compatible deserializer, provides a complete digital interface for concurrent transmission of high-speed video, audio, and control data for automotive display and image sensing applications. This EVM supports either STP or coaxial cable.

The chipset (...)

  • Supports Extended High Definition (1920x720 p) Digital Video Format
  • 5 – 96MHz PCLK Supported
  • STP or Coax Cable Supported
  • RGB888 Parallel LVCMOS Input Interface
  • Compatible with DS90UB926Q-Q1, DS90UB928Q-Q1, DS90UB948-Q1, and DS90UB940-Q1

Software development

Analog LaunchPad™ software
ALP Analog LaunchPad (ALP) software is an interactive graphical user interface (GUI) software platform to evaluate TI FPD-Link™ serializers and deserializers (SerDes). ALP software enables device- and system-level evaluation with powerful built-in features, including:
  • Local and remote device access
  • Device (...)

Design tools & simulation

SNLM200.ZIP (78 KB) - IBIS Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

参考设计 Download
Entry-level head unit display audio with Jacinto™ 6 entry reference design
TIDEP-0097 Based on TI's Jacinto™ DRA71x processor, this automotive reference design focuses on system-level cost savings. The 6 layer design reduces PCB costs through an optimized via breakout scheme, integration of key features and an optimized power distribution network. Functionality can be added or (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WQFN (RHS) 48 View options

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