Ultrasonic Distance Measurement using the TLV320AIC3268 miniDSP CODEC Reference Design

(ACTIVE) TIDA-00403

Description & Features

Technical Documents

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Key Document

Description

The TIDA-00403 reference design uses off-the-shelf EVMs for ultrasonic distance measurement solutions using algorithms within the TLV320AIC3268 miniDSP. In conjunction with TI’s PurePath Studio design suite, a robust and user configurable ultrasonic distance measurement system can be designed with the click of a mouse. The ultrasonic burst generation characteristics as well as detection algorithms can be user modified to fit specific use cases in industrial and measurement applications allowing users to overcome the limitations of other fixed function sensors while simultaneously increasing reliability of the measurements. Two GPIOs on the TLV320AIC3268 are automatically triggered indicating a transmitted and received ultrasonic burst. With a host MCU monitoring these GPIOs, the time of flight can be extracted.

Features
  • Prototyping using off-the-shelf EVMs with host computer for low cost evaluation and design
  • miniDSP with Pure Path Studio for high level of flexibility and fast time to market
  • 40KHz ultrasonic generation at 96KHz Fs Sample Rate; 192KHz Fs available for higher ultrasonic frequencies
  • Detection path inducing Chebychev filter and peak detector eliminates false triggering due to background noise
  • Automatic GPIO triggering for Time of Flight (TOF) calculation with host MCU
  • Includes a getting started/design guide and tested Pure Path Studio Process flow example for getting started

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Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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TI Devices (19)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
PCA9306  2-Bit Bidirectional I2C Bus and SMBus Voltage-Level Shifter  I2C  Sample & Buy View Design Kits & Evaluation Modules
PCM5242  4.2-VRMS DirectPath™, 32-bit, 384-kHz, 114-dB Audio Stereo DAC  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
SN74AUP1G125  Low-Power Single Bus Buffer Gate with 3-State Output  Buffer/driver  Sample & Buy Not Available
SN74AVC2T245  Dual-Bit, 2-DIR pin Dual-Supply Bus Transceiver w/ Configurable Voltage Translation, 3-State Output  Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules
SN74CBT3253  Dual 1-Of-4 FET Multiplexer/Demultiplexer  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G126  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G04  Dual Inverter  Buffer/driver  Sample & Buy Not Available
SN74LVC2G157  Single 2-Line to 1-Line Data Selector/Multiplexer  Specialty logic  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G17  Dual Schmitt-Trigger Buffer  Buffer/driver  Sample & Buy Not Available
SRC4392  High-end Combo Sample Rate Converter  Audio interface  Sample & Buy View Design Kits & Evaluation Modules
TAS1020B  Stereo USB Audio Interface  Processors  Not Available View Design Kits & Evaluation Modules
TCA9517  Level-Shifting I2C Bus Repeater  I2C  Sample & Buy View Design Kits & Evaluation Modules
TCA9539  Remote 16-Bit I2C and SMBus Low-Power I/O Expander w/ Interrupt Output, Reset, and Config Registers  I2C  Sample & Buy View Design Kits & Evaluation Modules
TLV320AIC3268  TLV320AIC3268 Ultra Low Power Stereo Audio Codec  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
TPS735  500mA, Adjustable, Low Quiescent Current, Low-Noise, High-PSRR, Single-Output LDO Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS736  Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TXB0101  1-Bit Bidirectional Voltage-Level Shifter With Auto Direction Sensing and +/-15-kV ESD Protect  Voltage level translation  Sample & Buy Not Available
TXB0102  2-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect  Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules
TXS0104E  4-Bit Bidirectional Voltage-Level Shifter for Open-Drain and Push-Pull Applications   Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
PCA9306 Download Download
Download Download
Download Download
Download -
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Download -
PCM5242 Download
SN74AUP1G125 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
Download -
SN74AVC2T245 Download Download
SN74CBT3253 Download -
Download Download
Download Download
Download Download
Download Download
SN74LVC1G126 Download Download
Download Download
Download Download
Download -
Download Download
Download Download
SN74LVC2G04 Download Download
Download Download
Download Download
Download -
SN74LVC2G157 Download Download
Download Download
Download -
SN74LVC2G17 Download
Download Download
Download
Download
Download -
SRC4392 Download Download
TAS1020B Download
TCA9517 Download
Download
TCA9539 Download Download
Download Download
Download -
TLV320AIC3268 Download Download
TPS735 Download Download
Download Download
TPS736 Download Download
Download Download
Download Download
TXB0101 Download Download
Download Download
Download Download
Download -
TXB0102 Download Download
Download -
TXS0104E (GXU) | 12 Download -
Download -
Download -
Download Download
Download -
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (2)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1595 21 Sep 2015 0
PDF 1277 21 Sep 2015 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 3899 21 Sep 2015 0
ZIP 11 21 Sep 2015 0
PDF 1839 21 Sep 2015 0
PDF 1710 21 Sep 2015 0
PDF 282 21 Sep 2015 0
PDF 544 21 Sep 2015 0
Related Tools & Software

Software (1)



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