Datasheet > PGA450-Q1_14

PGA450-Q1_14

更新时间： 2024-11-29 02:58:19

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德州仪器 - TI		/
页数	文件大小	规格书
58页	1125K
描述
ULTRASONIC-SENSOR SIGNAL CONDITIONER

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PGA450-Q1_14 数据手册

PGA450-Q1

www.ti.com

SLDS185A –APRIL 2012–REVISED APRIL 2012

ULTRASONIC-SENSOR SIGNAL CONDITIONER

Check for Samples: PGA450-Q1

FEATURES

APPLICATIONS

•

Dual NMOS Low-Side Drivers

Configurable Burst Generator

Low-Noise Amplifier

•

Automotive Park Distance

Blind Spot Detection

Object Detection Applications

12-Bit SAR ADC

DESCRIPTION

Configurable Digital Band-Pass Filter

Digital Signal Envelope Detect

On-Chip 8-Bit Microprocessor

LIN 2.1 Physical Interface and Protocol

Watchdog Timer

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.

Four-Wire SPI for Testability / Programming

8K Bytes OTP

768 Bytes of FIFO RAM

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.

256 Bytes Scratchpad RAM

8K Bytes of Development RAM

32 Bytes of EEPROM for Application

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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