Datasheet > ATA5283_07

ATA5283_07

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
14页	259K
描述
Interface IC for 125 kHz Wake-up Function

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ATA5283_07 数据手册

Features

• Wake-up Function for a Microcontroller with Preamble Detection

• 1 mV_rmsSensitivity

• 1 µA Standby Current

• Power Supply: 2V to 3.8V

• Baud Rate: up to 4 kbps (ASK Modulation)

• Operation Temperature: up to 125°C

• Withstands +175°C

• Few External Components

Interface IC for

125 kHz

Application

• Tire Pressure Monitoring (TPM)

Wake-up

1. Description

Function

The ATA5283 is a 125 kHz ultra-low power receiver used for the wake-up function of

Tire Pressure Monitoring (TPM) application. The sensitive input stage of the IC ampli-

fies and demodulates the carrier signal from the antenna coil to a digital output signal

for a microcontroller. During the standby mode the preamble detection unit monitors

the incoming signal and activates the wake-up output and the data output, if the IC

receives a proper 125 kHz carrier signal.

ATA5283

By combining the IC with an antenna coil, a microcontroller, an RF transmitter/trans-

ceiver, a battery, temperature- and pressure sensor, it is possible to design a

complete Tire Pressure Monitoring system (TPM).

Figure 1-1. Block Diagram

Battery

VDD

ATA5283

Amplifier

with AGC

COIL

RESET

Vref

N_WAKEUP

N_DATA

Condi-

tioner

Preamble

check

TST1

TST2

GND

4598H–AUTO–03/07

12 3 4 5 6 7...14

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