YAS529 Datasheet, PDF (5/10 Pages) YAMAHA CORPORATION – MS-3C Magnetic field Sensor

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