Texas Instruments PGA450-Q1 Ultrasonic-Sensor Signal Conditioner
Texas Instruments PGA450-Q1 Ultrasonic-Sensor Signal Conditioner is a fully integrated interface device for ultrasonic transducers. This device is used in calculating automotive park distance or object detection applications. It incorporates various system blocks. Those system blocks include voltage regulators, a 12-bit SAR ADC, an 8-bit microcontroller, a digital band-pass filter, a DAC, and dual NMOS low-side drivers. It also includes a low-noise amplifier, an oscillator, and a LIN 2.1 physical interface and protocol for interfacing. The PGA450-Q1 from Texas Instruments possesses a microcontroller and OTP memory for program storage. This is used 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.
Features
- Dual NMOS low-side drivers
- Configurable burst generator
- Low-noise amplifier
- 12-bit SAR ADC
- Configurable digital bandpass 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
Applications
- Automotive park distance
- Blind spot detection
- Object detection
Functional Diagram
Additional Resources
Evaluation Module
Texas Instruments PGA450Q1EVM-S Ultrasonic Sensor Evaluation Module
Evaluate the operation and performance of the PGA450-Q1, an ultrasonic-sensor conditioner.
TI Reference Design Library
Opublikowano: 2015-06-09
| Zaktualizowano: 2025-03-11