Automotive Multi-Channel Digital Audio Serializer



Product details


Function Serializer Color depth (bpp) 8 Input compatibility LVCMOS Pixel clock frequency (Max) (MHz) 50 Output compatibility FPD-Link III LVDS Features CRC, Dedicated GPIO, FPD-Link III Coax, I2C Config, I2S Audio, TDM Audio Signal conditioning Adaptive Equalizer, DC Balance EMI reduction LVDS, SSC Compatible Diagnostics BIST Operating temperature range (C) -40 to 105 open-in-new Find other FPD-Link SerDes

Package | Pins | Size

WQFN (RTV) 32 25 mm² 5 x 5 open-in-new Find other FPD-Link SerDes


  • Digital Audio Serializer
  • Flexible Digital Audio Inputs, supporting I2S
    (Stereo) or TDM (Multi-Channel) Formats
  • Coaxial or Single Differential Pair Interconnect
  • High Speed Serial Output Interface
  • Very Low Latency (<15µs)
  • Bidirectional Control Interface Channel with
    I2C-Compatible Serial Control Bus
  • Supports up to 8 Stereo I2S or
    TDM Audio Inputs
  • Supports Audio System Clocks from 10MHz to
  • Single 1.8V Supply
  • 1.8V or 3.3V I/O Interface
  • 4/4 Dedicated General Purpose Inputs/Outputs
  • AC-Coupled STP or Coaxial Cable up to 15m
  • DC-Balanced & Scrambled Data w/ Embedded Clock
  • Automotive Grade Product: AEC-Q100 Grade 2 Qualified
  • Temperature Range: –40°C to 105°C
  • ISO 10605 and IEC 61000-4-2 ESD Compliant
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The DS90UA101-Q1 Serializer, in conjunction with the DS90UA102-Q1 Deserializer, provides a solution for distribution of digital audio in multi-channel audio systems. It transmits a high-speed serialized interface with an embedded clock over a single shielded twisted pair or coaxial cable. The serial bus scheme supports high speed forward data transmission and low speed bidirectional control channel over the link. Consolidation of digital audio, general-purpose IO, and control signals over a single differential pair reduces the interconnect size and weight, while also reducing design challenges related to skew and system latency.

The DS90UA101-Q1 Serializer embeds the clock and level shifts the signals to high-speed low-voltage differential signaling. The device serializes up to eight digital audio data inputs, word/frame sync, bit clock, and system clock.

Four dedicated general purpose input pins and four general purpose output pins allow flexible implementation of control and interrupt signals to and from remote devices.

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Technical documentation

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Type Title Date
* Data sheet DS90UA101-Q1 Multi-Channel Digital Audio Serializer datasheet (Rev. A) Sep. 13, 2013
Technical article How to choose a power supply for an automotive camera module Sep. 17, 2020
User guide DS90UA101-Q1EVM User's Guide Sep. 01, 2013
Application note I2C Communication Over FPD-Link III with Bidirectional Control Channel (Rev. A) Apr. 26, 2013

Design & development

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

Software development

SNLC048D.ZIP (24784 KB)
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

SNLM162.ZIP (93 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

Automotive Audio I2S over Coax Class D Amplifier Reference Design
TIDA-00223 This reference design is an I²S/TDM-based, low-cost, easy-to-use alternative to fiber optics/analog copper wire for connecting an automotive (sound) control panel to an output stage/power amplifier. Supporting I²S as well as TDM, it is capable of transmitting digital audio signal to 16 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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WQFN (RTV) 32 View options

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