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PDF YAS529 Data sheet ( Hoja de datos )
| Número de pieza | YAS529 | |
| Descripción | Magnetic field Sensor | |
| Fabricantes | YAMAHA | |
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YAS529
MS-3C
Magnetic field Sensor
Overview
YAS529 is the Triaxial Geomagnetic Sensor IC integrating buffer amplifier, A/D converter, clock generator,
and serial data interface circuit (supports I2C bus) on one chip package.
YAS529 allows you to make up a high sensitive, compact and low-power electronic compass in a portable
GPS system or a mobile phone.
Features
● A manufacturing process that makes magnetic sensor on Si wafer with high precision realizes integration
with peripheral circuits on one chip.
● High sensitive geomagnetic sensor IC is realized by integrating magnetic sensors and low noise
amplifiers.
● High noise immunity is improved by digitizing output from geomagnetic sensor IC.
● External interface supports I2C bus (100kbps/400kbps, slave mode).
● Geomagnetic sensor with superior high board density and low-power consumption.
● Automatic power-down control mode is available after geomagnetic measurements.
● Three A/D input pins for an inclination sensor
● Power-down control of an inclination sensor with a standby pin by the use of the General-Purpose Output
(GPO) Pin
● Others.
Manufacturing process ......................... CMOS + Magnetic Sensor
Package ................................................ Lead-free 10-pin WLCSP package (YAS529-PZ)
Supply voltage for core ........................ 2.5 V to 3.6 V
Supply voltage for Interface ................. 1.65 V to VDD (Operating temperature : -20 to +95 °C)
2.30 V to VDD (Operating temperature : -40 to +95 °C)
Operating temperature .......................... -40 to +95 °C (Supply for the interface : 2.30V to VDD)
Consumption current during operation.
Magnetic field measurement ....... 4 mA (VDD = 3.0 V)
Magnetic sensor section
Measuring magnetic field range .. ±300 µT
Resolution .................................... ≦0.6 µT/count (X,Y), ≦1.2 µT/count (Z)
Measuring time
Magnetic sensor measurement .... within 10 ms (Three axes collective measurement)
Inclination sensor A/D ................ within 10 ms (Three axes collective measurement)
YAS529 CATALOG
CATALOG No.: LSI-BAS529A20
2007.6
1 page  
YAS529
Function Descriptions
z Analog Circuit Section
○ Magnetic Sensor
YAS529 includes three Magnetic Sensors.
Only the sensor of an axis to measure at the time of magnetic field measurement is operated.
○ Buffer Amplifier
The buffer amplifier amplifies a signal output from the bridge of magnetic sensor.
The amplifier operates only when magnetic field measurement is made.
○ Temperature Sensor
This is the sensor to correct the temperature characteristics of the magnetic sensor.
The sensor operates only when temperature is measured.
○ A/D Converter (ADC)
The A/D converter converts input signals from magnetic sensor output amplified by the buffer
amplifier, temperature sensor output, and external input pin.
The converter operates only when a measurement is performed.
○ Clock Generator
The clock generator supplies clocks to ADC and digital circuits.
The generator operates only when a measurement is performed.
○ Power-on Reset
The Power-on Reset circuit detects a rising edge of the supply voltage for the core and
initializes the circuits.
○ Initialization Coil
The coils are used when the magnetic sensor cannot exert the original characteristics due to
receiving high magnetic field.
Generating magnetic field with the initialization coils initializes the magnetic sensor
characteristics.
○ Analog External Input A/D
The A/D measures values from analog external input.
Input range is from 0.5 to 2.5V. One count of A/D converter is about 3.0mV.
5
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet YAS529.PDF ] | |
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