PGA460

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Ultrasonic signal processor and transducer driver

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Product details

Parameters

Product type Integrated Features Transformer drive Frequency (kHz) 30-80 kHz, 180-480 kHz Gain (Min) (dB) 32 Gain (Max) (dB) 90 Number of input channels 1 Supply voltage (Max) 28 Operating temperature range (C) -40 to 105 Supply voltage (Min) 6 Interface type UART / USART, TCI (Time Command Interface), OWU (One-Wire UART) Rating Catalog open-in-new Find other Ultrasonic sensor AFEs

Package | Pins | Size

TSSOP (PW) 16 22 mm² 5 x 4.4 open-in-new Find other Ultrasonic sensor AFEs

Features

  • Fully Integrated Solution for Ultrasonic Sensing
  • Complimentary Low-Side Drivers With Configurable Current Limit Supporting Both Transformer Based and Direct Drive Topology for Transducer Excitation
  • Single Transducer for Both Burst/Listen or a Transducer Pair, One for Burst and the Other for Listen Operation
  • Low-Noise Receiver With Programmable 6-Point Time-Varying Gain (32 to 90 dB) With DSP (BPF, Demodulation) for Echo Envelope Detection
  • Two Presets of 12-Point Time-Varying Threshold for Object Detection
  • Timers to Measure Multiple Echo Distance and Duration
  • Integrated Temperature Sensor
  • Record Time for Object Detection up to 11 m
  • 128 Bytes of RAM for Echo Recording
  • 42 Bytes of User EEPROM to Store Configuration for Fast Initialization
  • One-Wire High-Voltage Time-Command Interface or USART Asynchronous Interface
  • CMOS Level USART Interface
  • Sensor Diagnostics (Decay Frequency and Time, Excitation Voltage), Supply, and Transceiver Diagnostics.

All trademarks are the property of their respective owners.

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Description

The PGA460 device is a highly-integrated system on-chip ultrasonic transducer driver and signal conditioner with an advanced DSP core. The device has a complimentary low-side driver pair that can drive a transducer either in a transformer based topology using a step-up transformer or in a direct-drive topology using external high-side FETs. The device can receive and condition the reflected echo signal for reliable object detection. This feature is accomplished using an analog front-end (AFE) consisting of a low-noise amplifier followed by a programmable time-varying gain stage feeding into an ADC. The digitized signal is processed in the DSP core for both near-field and far-field object detection using time-varying thresholds.

The main communication with an external controller is achieved by either a time-command interface (TCI) or a one-wire USART asynchronous interface on the IO pin, or a CMOS-level USART interface on the RXD and TXD pins. The PGA460 can be put in ultra-low quiescent current low-power mode to reduce power consumption when not in use and can be woken up by commands on the communication interfaces.

The PGA460 also includes on-chip system diagnostics which monitor transducer voltage during burst, frequency and decay time of transducer to provide information about the integrity of the excitation as well as supply-side and transceiver-side diagnostics for overvoltage, undervoltage, overcurrent and short-circuit scenarios.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet PGA460 Ultrasonic Signal Processor and Transducer Driver datasheet (Rev. B) Jan. 07, 2019
Application notes Ultrasonic Sensing Basics (Rev. C) Mar. 26, 2020
White papers Ein Techniker-Leitfaden für Industrieroboter-Designs Mar. 25, 2020
White papers E-book: An engineer’s guide to industrial robot designs Feb. 12, 2020
Technical articles How to choose the right proximity sensor for your design needs Oct. 31, 2019
Application notes Ultrasonic Terrain-Type and Obstacle Detection for Robotic Lawn Mowers (Rev. A) Oct. 30, 2019
Application notes Using Ultrasonic Technology for Smart Parking and Garage Gate Systems Aug. 08, 2019
Application notes How to select the right proximity sensor technology Jul. 19, 2019
User guides PGA460PSM-EVM User's Guide Jul. 15, 2019
Application notes Ultrasonic Floor-Type and Cliff Detection on Automated Vacuum Robots Jul. 15, 2019
Application notes PGA460 Array of Ultrasonic Transducers for Triangulation and Tracking Jul. 12, 2019
Technical articles Paving the way with ultrasonic sensing Jun. 10, 2019
Application notes PGA460 Full-Bridge Driver Solutions for Ultrasonic Transducers (Rev. A) Feb. 28, 2019
User guides Ultrasonic Proximity-Sensing Module (PSM) Reference Design Oct. 09, 2018
User guides PGA460-Q1 Ultrasonic Signal Conditioner EVM With Transducer User's Guide (Rev. B) Mar. 19, 2018
Technical articles Where are ultrasonic sensors used? – Part 2 Oct. 31, 2017
Technical articles How ultrasonic technology improves convenience and performance in home automation Oct. 05, 2017
Application notes PGA460 Software Development Guide (Rev. A) Aug. 22, 2017
Application notes PGA460 Frequently Asked Questions (FAQ) and EVM Troubleshooting Guide May 01, 2017
Application notes PGA460 Ultrasonic Module Hardware and Software Optimization Feb. 17, 2017
User guides PGA460-Q1 EVM Quick Start Guide Feb. 17, 2017

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description
Fully evaluate the PGA460 ultrasonic sensor signal conditioner with the BOOSTXL-PGA460 (+ MSP430F5529LP). The PGA460 is an integrated ultrasonic front-end with a digital signal processor that outputs time-of-flight data, echo width and amplitude information. The driver strength is configurable by a (...)
Features
  • Compatible with open- or closed-top ultrasonic transducers operating at a center frequency between 30-80kHz and 180-480kHz.
  • Access to all communication interfaces offered by the PGA460-Q1, including: USART, TCI, and One-Wire UART.
  • Swappable daughtercard allows custom driver-type and transducer (...)
EVALUATION BOARDS Download
document-generic User guide
Description

The PGA460PSM evaluation module (EVM) is a small-form-factor solution showcasing double-sided printed circuit board (PCB) spacing and the supporting component requirements for the PGA460 ultrasonic sensor signal conditioner. This hardware variant can only be operated in monostatic transducer (...)

Features
  • Compatible with ultrasonic transducers operating at a center frequency between 30 kHz to 80 kHz and 180 kHz to 480 kHz
  • Able to generate maximum sound-pressure level using transformer-driven methods
  • Access to all communication interfaces offered by PGA460, including:
    • USART
    • TCI
    • One-wire UART
  • Fully (...)
GUIS FOR EVALUATION MODULES (EVM) Download
SLAC739T.ZIP (24724 KB)

Software development

CODE EXAMPLES & DEMOS Download
SLAC741J.ZIP (410 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM301.ZIP (65 KB) - IBIS Model
SIMULATION TOOLS Download
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
GERBER FILES Download
SLAC754.ZIP (3274 KB)
GERBER FILES Download
SLAC755.ZIP (3279 KB)
GERBER FILES Download
SLAC756.ZIP (2665 KB)
GERBER FILES Download
SLAC757.ZIP (2470 KB)
GERBER FILES Download
SLAC758.ZIP (2090 KB)
GERBER FILES Download
SLAC759.ZIP (3279 KB)
GERBER FILES Download
SLAC760.ZIP (3371 KB)
GERBER FILES Download
SLAC761.ZIP (2751 KB)
GERBER FILES Download
SLAC787.ZIP (21 KB)

Reference designs

REFERENCE DESIGNS Download
Ultrasonic proximity-sensing module (PSM) reference design
TIDA-060024 — This reference design is a small-form factor solution showcasing double-sided PCB spacing and minimum supporting component requirements for the PGA460 ultrasonic sensor signal conditioner. This module operates in a mono-static mode for single sensor transmit and receive operation to enable object (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Ultrasonic Distance Sensor with IO-Link Reference Design
TIDA-01386 — This reference design features an ultrasonic distance sensor that fits in a M12 housing due to its high integration and an optimized layout. The design offers an IO-Link interface to communicate with the system control, which makes it industry 4.0 ready.  The purpose of ultrasonic sensors (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 16 View options

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