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YAMAHA
YAMAHA


YAS526C

Magnetic field Sensor


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YAS526C pdf
YAS526C
MS-2
Magnetic field Sensor
„ Overview
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 I2C) on a
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
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.
Three A/D input pins for inclination sensor
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.
Temperature sensor for inclination sensor temperature characteristics correction
Others.
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 field measurement ................. 27 mW (VDD = 3.0 V)
Inclination sensor A/D conversion ........ 6 mW (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)
A/D input section
Input range ............................................ 0.5 V to 2.5 V
Resolution ............................................. 3.0 mV
Measuring time
Magnetic sensor measurement .............. within 8 ms (Three axes collective measurement)
Inclination sensor A/D .......................... within 4 ms (per 1 channel)
YAS526C CATALOG
CATALOG No.: LSI-BAS526C20
2007.6



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„ Pin Description
Here is a figure for pin assignment and a table for pin descriptions.
YAS526C
28 Pin QFN Top View
Pin Descriptions
Pin No. Pin Name I/O
Function
1 I1 A A/D input 1
2 I2 A A/D input 2
3 I3 A A/D input 3
6 VSS1 - Ground
7
IOVDD1
-
Power supply for Interface
8 SCL1 I Serial clock
14 SDA1 I/Od Serial data
15 VDD1 - Power supply for Core
16 T1 I Test mode (connecting with VDD)
18 VSS2 - Ground
19 T2 I Test mode (connecting with VDD)
20 IOVDD2 -
Power supply for interface
21 SCL2 I Serial clock
22 SDA2 I/Od Serial data
28 VDD2 - Power supply for Core
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 (4, 5, 9, 10, 11, 12, 13, 17, 23,
24, 25, 26, 27) except the above.
A : Analog input
I : Digital Input
Od : Open drain output
2



Part Number YAS526C
Description Magnetic field Sensor
Maker YAMAHA - YAMAHA
Total Page 10 Pages
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