PGA460-Q1

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Automotive 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 Automotive 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
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • 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.

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Description

The PGA460-Q1 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-Q1 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-Q1 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

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Type Title Date
* Datasheet PGA460-Q1 Automotive Ultrasonic Signal Processor and Transducer Driver datasheet (Rev. B) Jan. 05, 2019
Application notes Ultrasonic Sensing Basics (Rev. C) Mar. 26, 2020
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
White papers Automated parking made possible with TI mmWave radar and ultrasonic sensors (Rev. A) Jun. 28, 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
Application notes PGA460-Q1 in Automotive Ultrasonic Kick-to-open Liftgate Systems (Rev. B) Jan. 03, 2018
Application notes PGA460-Q1 in Ultrasonic Park Assist (UPA) (Rev. A) Jan. 03, 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
Technical articles Comparing capacitive and ultrasonic kick-to-open sensing Sep. 06, 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
SLAC741I.ZIP (410 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM301.ZIP (65 KB) - IBIS Model
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
Automotive Ultrasonic Sensing Module Reference Design for Park Assist
TIDA-01597 — This reference design provides hardware architecture for a Park Assist System (PAS) using three highly integrated, system-on-chip (SoC) ultrasonic transducer drivers. These ultrasonic transducer drivers have an integrated signal conditioner with an advanced digital signal processor (DSP) core. Using (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive Ultrasonic Kick-to-Open Reference Design
TIDA-01424 — This reference design uses ultrasonic sensing to detect a kicking motion indicating the user's desire to activate a power lift-gate, power trunk, or power sliding door on an automobile.  Ultrasonic sensing allows detection of more than one object, and gives a measure of distance to each object (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 16 View options

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