DS90UB921-Q1

ACTIVE

Product details

Function Serializer Color depth (bpp) 24 Input compatibility LVCMOS Pixel clock frequency (Max) (MHz) 96 Output compatibility FPD-Link III LVDS Features Low-EMI Point-to-Point Communication Signal conditioning Adaptive Equalizer EMI reduction SSC Compatible Diagnostics BIST Operating temperature range (C) -40 to 105
Function Serializer Color depth (bpp) 24 Input compatibility LVCMOS Pixel clock frequency (Max) (MHz) 96 Output compatibility FPD-Link III LVDS Features Low-EMI Point-to-Point Communication Signal conditioning Adaptive Equalizer EMI reduction SSC Compatible Diagnostics BIST Operating temperature range (C) -40 to 105
WQFN (RHS) 48 49 mm² 7 x 7
  • 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
    meters
  • 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
  • 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
    meters
  • 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

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.

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 PDF | HTML 22 Mar 2016
Technical article How to choose a power supply for an automotive camera module 17 Sep 2020
EVM User's guide DS90UB921-Q1EVM User's Guide 22 Mar 2016

Design & development

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

Evaluation board

DS90UB921-Q1EVM — 5-96MHz DS90UB921-Q1 FPD-Link III Serializer for STP or Coaxial Cable

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 (...)

User guide: PDF
Not available on TI.com
Support software

ALP — Analog LaunchPad™ software

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
  • (...)
Simulation model

DS90UB921 IBIS Model

SNLM200.ZIP (78 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
Reference designs

TIDEP-0097 — Entry-level head unit display audio with Jacinto™ 6 entry reference design

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 (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
WQFN (RHS) 48 View options

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