ATA5283 Function Datasheet

ATA5283 Datasheet PDF, Equivalent


Part Number

ATA5283

Description

Interface IC for 125 kHz Wake-up Function

Manufacture

ATMEL Corporation

Total Page 14 Pages
PDF Download
Download ATA5283 Datasheet PDF


ATA5283
Features
Wake-up Function for a Microcontroller with Preamble Detection
1 mVrms Sensitivity
1 µA Standby Current
Power Supply: 2 V to 3.8 V
Baud Rate: up to 4 kbps (ASK Modulation)
Operation Temperature: up to 125°C
Withstands +175°C
Few External Components
Application
Tire Pressure Monitoring (TPM)
Description
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.
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. Block Diagram
Interface IC for
125 kHz
Wake-up
Function
ATA5283
Preliminary
Battery
Lx
Amplifier
with AGC
COIL
VDD
ATA5283
RESET
Vref
TST1
TST2
Condi-
tioner
Preamble
check
N_WAKEUP
N_DATA
GND
Rev. 4598D–AUTO–03/04

ATA5283
Pin Configuration
Figure 2. Pinning TSSOP8L
COIL
TST1
TST2
VSS
1
2
3
4
8 VDD
7 N_WAKEUP
6 N_DATA
5 RESET
Pin Description
Pin Symbol
1 COIL
2 TST1
3 TST2
4 VSS
5 RESET
6 N_DATA
7 N_WAKEUP
8 VDD
Function
Antenna coil input
Test pin (reserved)
Test pin (reserved)
Signal ground
External reset input
Data signal
Low active wake-up signal for microcontroller
Battery voltage
2 ATA5283 [Preliminary]
4598D–AUTO–03/04


Features Features • • • • • • • • Wake-up Function for a Microcontroller with Preamble Detection 1 mVrms Sensit ivity 1 µA Standby Current Power Suppl y: 2 V to 3.8 V Baud Rate: up to 4 kbps (ASK Modulation) Operation Temperature : up to 125°C Withstands +175°C Few E xternal Components Application • Tir e Pressure Monitoring (TPM) Descriptio n The ATA5283 is a 125 kHz ultra-low po wer receiver used for the wake-up funct ion of Tire Pressure Monitoring (TPM) a pplication. The sensitive input stage o f the IC amplifies and demodulates the carrier signal from the antenna coil to a digital output signal for a microcon troller. During the standby mode the pr eamble detection unit monitors the inco ming signal and activates the wake-up o utput and the data output, if the IC re ceives a proper 125 kHz carrier signal. By combining the IC with an antenna co il, a microcontroller, an RF transmitte r/transceiver, a battery, temperature- and pressure sensor, it is possible to design a complete Tire Pressure Monitoring sy.
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