YAS525B datasheet(4/8 Pages) YAMAHA

4 / 8 page

YAS525B

Function Descriptions

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.)

X-axis

Y-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].

Digital Circuit Section

○ Serial Data Interface

YAS525B serial data interface supports I2C serial interface and operates in the slave mode.

YAS525B Datasheet(PDF) 4 Page - YAMAHA CORPORATION