PGA450-Q1 is an Automotive Ultrasonic Sensor Signal Conditioner

This post sponsored by Texas Instruments.

The PGA450-Q1 is a fully integrated interface device for ultrasonic transducers used in automotive park distance or object detection applications.

It incorporates the following system blocks: voltage regulators, a 12-bit SAR ADC, an 8-bit microcontroller, a configurable 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. Additionally the PGA450-Q1 features a configurable burst generator, a digital signal envelope detector, and a watchdog timer. It also has four-wire SPI for testability and programming, 768 bytes of FIFO RAM, 256 bytes of scratchpad RAM, and 8K bytes of development RAM.

For more information about this product, click here.
For detailed information about the tool mentioned above, click here.
To request a sample, click here.
To download a datasheet, click here.

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