yas526c Yamatake Corporation, yas526c Datasheet

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yas526c

Manufacturer Part Number
yas526c
Description
Ms-2 Magnetic Field Sensor
Manufacturer
Yamatake Corporation
Datasheet
YAS526C is the Triaxial Geomagnetic Sensor IC integrating high sensitivity triaxial Magnetic Sensors, A/D
inputs for inclination sensors, temperature sensor for inclination sensor temperature characteristics correction,
Buffer Amplifiers, A/D Converters, Clock Generators, and Serial Data Interfaces (supports I
multi-chip package.
YAS526C allows you to make up a high sensitive, compact and low-power electronic compass in a portable
GPS system or a mobile phone.
● A manufacturing process that makes magnetic sensor on Si wafer with high precision realizes integration
● High sensitive geomagnetic sensor IC is realized by integrating magnetic sensors and low noise
● Three A/D input pins for inclination sensor
● High noise immunity is improved by digitizing output from geomagnetic sensor IC.
● External interface supports I
● Geomagnetic sensor with superior high board density and low-power consumption.
● Automatic power-down control mode is available after geomagnetic measurements.
● Others.
● Temperature sensor for inclination sensor temperature characteristics correction
Overview
Features
with peripheral circuits on one chip.
amplifiers.
Manufacturing process .................................. CMOS + Magnetic Sensor
Package ......................................................... Lead-free 28-pin QFN package (YAS526C-QZ)
Supply voltage for Core ................................ 2.5 V to 3.6 V
Supply voltage for Interface .......................... 1.7 V to VDD
Operating temperature ................................... -20 to +85 °C
Power consumption during operation.
Magnetic sensor section
A/D input section
Measuring time
Magnetic field measurement ................. 27 mW (VDD = 3.0 V)
Inclination sensor A/D conversion ........ 6 mW (VDD = 3.0 V)
Measuring magnetic field range ........... ±300 µT
Resolution ............................................. ≦0.6 µT/count (X,Y), ≦1.2 µT/count (Z)
Input range ............................................ 0.5 V to 2.5 V
Resolution ............................................. 3.0 mV
Magnetic sensor measurement .............. within 8 ms (Three axes collective measurement)
Inclination sensor A/D .......................... within 4 ms (per 1 channel)
YAS526C
2
C bus (100kbps/400kbps, slave mode).
Magnetic field Sensor
MS-2
CATALOG No.: LSI-BAS526C20
YAS526C CATALOG
2007.6
2
C) on a

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yas526c Summary of contents

Page 1

... Buffer Amplifiers, A/D Converters, Clock Generators, and Serial Data Interfaces (supports I multi-chip package. YAS526C allows you to make up a high sensitive, compact and low-power electronic compass in a portable GPS system or a mobile phone. Features ● ...

Page 2

... SCL2 22 SDA2 28 VDD2 Note) Connection of I3(A/D input 3) pin to VDD is recommended when using YAS526C with a biaxial inclination sensor connected. Connecting I1, I2, and I3 to VSS is recommended when an inclination sensor is not connected. Pin 16 and pin 19 are used, connecting with VDD. When used, no connection should be made to the pins ( 10, 11, 12, 13, 17, 23, 24, 25, 26, 27) except the above ...

Page 3

... Serial data input/output pin. These pins are used with an external pull-up register. Analog Input I1, I2 A/D input pin Connection of I3 pin to VDD is recommended when using YAS526C with a biaxial inclination sensor connected. Connecting I1, I2, and I3 to VSS is recommended when an inclination sensor is not connected. ...

Page 4

... Block Diagram Here is the internal block diagram of YAS526C. Magnetic Sensor - 1 Initialization Coils Magnetic Sensor - 2 Magnetic Sensor - 3 gain Initialization Coils Temperature Sensor XY-chip gain A/D Clock Generator Z-chip A/D Clock Generator Block Diagram T1 Powerdown VDD1 Control Serial IOVDD1 Data Interface SCL1 SDA1 ...

Page 5

... The sensor operates only when temperature is measured. A/D Converter (ADC) ○ The integrating A/D converter (ADC) using switched capacitor is mounted on YAS526C. XY chip and Z chip has one each. The ADC of XY chip has Magnetic field Rough Offset Measurement and Magnetic field Normal Measurement modes. ...

Page 6

... Digital Circuit Section Serial Data Interface ○ YAS526C serial data interface supports I SCL (SCL1, SCL2) SDA (SDA1, SDA2) Communication is performed through the above pins serial interface and operates in the slave mode. : Serial clock input pin : Serial data input/output pin ...

Page 7

Example of System Configuration Here is an example of system configuration. Example of system configuration 7 ...

Page 8

Package Outline Drawing Notice : Do not expose wirings of the mount board within a square area (1 side) centering around the center of the chip. Since a part of the lead frame is exposed on the ...

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... YAS526C ...

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