Automotive Ultrasonic Sensor Signal Conditioner - PGA450-Q1

PGA450-Q1 (ACTIVE)

Automotive Ultrasonic Sensor Signal Conditioner

Description

The PGA450-Q1 is a fully integrated interface device for ultrasonic transducers used in automotive park distance or object detection applications. It incorporates these system blocks: voltage regulators, a 12-bit SAR ADC, an 8-bit microcontroller, a digital band-pass filter, a DAC, dual NMOS low-side drivers, a low-noise amplifier, an oscillator, and a LIN 2.1 physical interface and protocol for interfacing.

The PGA450-Q1 possesses an 8-bit microcontroller and OTP memory for program storage for processing the echo signal and calculating the distance between the transducer and the object. This data is transmitted through the LIN 2.1 communication protocol. The LIN 2.1 physical layer is slave-only and does not implement the LIN wake-up feature. All other LIN 2.1 features can be implemented in software.

Features

  • Dual NMOS Low-Side Drivers
  • Configurable Burst Generator
  • Low-Noise Amplifier
  • 12-Bit SAR ADC
  • Configurable Digital Band-Pass Filter
  • Digital Signal Envelope Detect
  • On-Chip 8-Bit Microprocessor
  • LIN 2.1 Physical Interface and Protocol
  • Watchdog Timer
  • Four-Wire SPI for Testability / Programming
  • 8K Bytes OTP
  • 768 Bytes of FIFO RAM
  • 256 Bytes Scratchpad RAM
  • 8K Bytes of Development RAM
  • 32 Bytes of EEPROM for Application

View more

Parametrics Compare all products in Ultrasonic Analog Front End

 
# Input Channels
Interface
Integrated Features
Active Supply Current (Typ) (mA)
Supply Voltage (Max)
Supply Voltage (Min)
Rating
Pin/Package
Operating Temperature Range (C)
Approx. Price (US$)
PGA450-Q1
1    
LIN / SCI
UART
GPIO
SPI    
System-On-Chip solution
Configurable Transmitter
LNA and PGA
12-bit SAR ADC
Digital Signal Processing
8-bit Microprocessor
LIN/SCI Interface and Protocol
Integrated Temperature Sensor
Watchdog timer    
5    
18    
7    
Automotive    
28TSSOP    
-40 to 125    
2.60 | 1ku    

Related end equipment

  • Automotive Park Distance
  • Blind Spot Detection
  • Object Detection Applications

Click Here