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Yamaha LSI Specifications
Device Name: YAS539-PZE2
Specification No.: Reference
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Electronic Devices Division
Yamaha Corporation
203 Matsunokijima, Iwata, Shizuoka 438-0192, Japan
TEL. +81-539-62-4918
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Device Name : YAS539-PZE2
Specification No. :Reference
1. Basic Specifications
2/17
1. Device Name
2. Function
3. Application
4. Production process
5. Package
: YAS539-PZE2
: YAS539 ( MS-3S ) chip integrates a three axis magnetometer with processing
circuits with I2C bus interface to report processed, ready-to-use geomagnetic field
intensity values to the host.
: Compass for Mobile phone, Portable GPS system, and so on
: Si-Gate CMOS process + Magnetic Sensor
: 4-ball WLCSP package (Lead-free solder ball)

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Device Name : YAS539-PZE2
2. Block Diagram
Specification No. :Reference
3/17
Magnetic Sensor
YAS539 has magnetic sensors.
Temperature Sensor
Temperature sensor element is used to correct magnetometer outputs for temperature variations.
A/D Converter
Analog to digital converter digitizes magnetometer and temperature sensor output signals.
Clock Generator
On chip clock generator generates and provides clock signals to internal circuits.

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Device Name : YAS539-PZE2
3. Pin Descriptions
Pin Arrangement
Specification No. :Reference
4/17
Pin Descriptions
Ball No. Name I/O
1A
SCL
Is
1B
VDD
-
2A
SDA
Is/Od
2B
VSS
-
Is : Schmitt trigger input
Od : Open-drain outpu
Description
I2C serial clock
Power (1.8 V typ.)
I2C serial data
Ground

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Device Name : YAS539-PZE2
Specification No. :Reference
4. Electrical Characteristics
5/17
Absolute Maximum Ratings
Parameter
Supply Voltage (VDD)
Digital Input Pin Voltage (SCL, SDA)
Storage Temperature
Maximum Applicable Magnetic Field Intensity
Symbol
VVDD
VIND
Tstg
Hmax
Min.
0.3
0.3
50
Typ. Max. Unit
2.5 V
2.5 V
125 °C
500 mT
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ. Max. Unit
Supply Voltage (VDD)
VVDD
1.65
1.8 1.95 V
Operating Ambient Temperature
TOP 40 25 85 °C
Note: The above operating conditions do not always ensure data sampling accuracy.
In an actual application, the ambient magnetic environment may vary with changes in temperature and affect
data sampling accuracy.
Operating Current
Parameter
Min. Typ.
Standby current(TOP = 25°C, SCL = SDA = VDD = 1.95 V)
Standby current(TOP = 85°C, SCL = SDA = VDD = 1.95 V)
Current drawn during standby (periodic sampling)
10
Current drawn during magnetometer data sampling (See Note 1.)
2.5
Current drawn during temperature data sampling (See Note 1.)
1.5
Current averaged during periodic sampling
(Default configuration, VDD = 1.8 V, 100 sample/s)
Current averaged during periodic sampling (See Note 2.)
(Low current configuration, VDD = 1.8 V, 100 sample/s)
280
160
Current during activating reset coils
95
Note 1: After data sampling, the device automatically powers down to enter the standby state.
Note 2: See 9.2.6. AVRR: Averaging Filter for further information.
Max.
1.5
15
Unit
μA
μA
μA
mA
mA
µA
µA
mA
Magnetic Sensor Characteristics
Parameter
(Conditions: TOP = 25°C, VDD = 1.8 V)
Min. Typ. Max.
Unit
Maximum measurable magnetic field intensity
(See Note 1.) - 2000 -
μT
Magnetic field sensitivity (X, Y, Z)
(See Note 2.) -
0.15 0.3 μT / LSB
Sensitivity axis deviation
(See Note 3.) -
- ±5 deg
Note 1: This value assumes Yamaha device driver is used.
Note 2: Y sensitivity is for (Y1 Y2) / 3 , and Z sensitivity for Y1 Y2.
Note 3: The sensitivity axis deviation is for the value corrected with CAL register values without magnetic fields.