Automotive Ultrasonic Sensor Interface IC for Park Assist or Blind Spot Detection Systems


Design files


The TIDA-00151 reference design contains a PGA450-Q1 which is a system on Chip (SOC) sensor interface IC for automotive Ultrasonic sensors. It provides all signal conditioning and processing for the transducer echo signals and for calculating the distance between the transducer and objects. MCU and program memory allow for full configurability for the specific end application.

Application examples are ultrasonic park assist, self parking, blind spot detection and valet parking.

The design files for a small form factor board are included in this design, but thePGA450Q1EVM board was used to collect the test data.

  • Flexibility in transducer selection (40 kHz – 70 kHz)
  • SoC that is highly programmable with integrated 8051 core
  • Integrated LIN2.1 master transceiver
  • Can be directly connected to car battery, no wide input range LDO required
  • Load dump protection
  • AEC Q-100  

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU327.PDF (352 K)

Reference design overview and verified performance test data

TIDU326.PDF (487 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDC410.ZIP (80 K)

Detailed schematic diagram for design layout and components

TIDR585.PDF (147 K)

Detailed schematic diagram for design layout and components

TIDR586.PDF (97 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC409.ZIP (54 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Ultrasonic sensor AFEs

PGA450-Q1Ultrasonic Sensor Signal Processor with Integrated Microcontroller (MCU)

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development


GUI for evaluation module (EVM)

PGA450Q1EVM GUI v1.50.3 (Rev. F) — SLDC008F.ZIP (5713 K)

lock = Requires export approval (1 minute)

TIDA-00151 UART & LIN Demo Firmware for PGA450-Q1 (Rev. F) — TIDCAB3F.ZIP (4535 K)

lock = Requires export approval (1 minute)

Technical documentation

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Type Title Date
* Design guide TIDA-00151 Overview May 05, 2014
More literature TIDA-00151 UART & LIN Demo Firmware for PGA450-Q1 (Rev. F) Dec. 20, 2018
Technical article Power naps: saving energy using ultrasonic sensing Aug. 16, 2016
Test report TIDA-00151 Test Results May 05, 2014

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