YAS525B Datasheet, PDF (4/8 Pages) YAMAHA CORPORATION – MS-1C Magnetic field Sensor

YAS525B
„ ^{Function Descriptions}
z ^{Analog Circuit Section}
○ ^{Magnetic Sensor}
A sensor for X-axis and Y-axis is embedded independently.
(As for sensitivity direction of X-axis and Y-axis, see the following figure.)
Y-axis
X-axis
Chip alignment and X,Y-axis
○ ^{Buffer Amplifier}
The amplifier amplifies a signal from the magnetic sensor output.
○ ^{Thermal Sensor}
The sensor is a thermal sensor for the compensation of temperature characteristics of the
magnetic sensor.
○ ^{A/D Converter (ADC)}
The ADC converts magnetic sensor output and temperature sensor output into digital data.
○ ^{Clock Generator}
The clock generation section supplies clocks for ADC and digital circuits.
○ ^{Power-on Reset}
The section detects a rising of the power–on and initializes circuits.
○ ^{Initialization Coil}
The coil is used when the magnetic sensor cannot give original characteristics due to receiving
strong magnetic field.
Generating magnetic field by the initialization coil initializes the magnetic sensor
characteristics.
The initialization coil is operated by setting Config register CONFR [3:0].
z ^{Digital Circuit Section}
○ ^{Serial Data Interface}
YAS525B serial data interface supports I²C serial interface and operates in the slave mode.
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