MAGNETIC FIELD SENSOR YAS537 MS-3T 1.2mm×1.2mm WLCSP8 Preliminary 3-AXIS MAGNETIC FIELD SENSOR Simple & Accurate POWER Mounting area is minimized by the smallest package size and the minimum peripheral components. Ultra low power consumption can be realized by 1.8V single power supply and optimization of the internal circuit. 4.00 1.8V 1. 2. 3. 4. 5. 6. 7. Ap p l i c a t i o n D i a gr a m Power-On Reset Voltage Regulator Host CPU I2C Master 0.3μT/count [email protected] P a c ka ge A/D Converter Serial Data Interface (Regisers) Power Down Control VDD WLCSP8 Package 0.2mm 0.4mm 0.4mm 0.2mm VDD18 VSS SCL SDA INT 0.2mm Clock Generator 1.8V SDA N.C. VDD18 0.4mm Temperature Sensor 2000μT SCL VSS 0.4mm Magnetic Sensor‘Y2’Axis ACQUISITION Power Consumption in Measurement: 4mA Measurement Time (Mag.&Temp.): 1.3msec. Package: 1.2mm x 1.2mm WLCSP8 0.2mm Magnetic Sensor‘Y1’Axis Pre Amplifier x74 RESOLUTION 3-Axis Magnetic Field Sensor, LNA and ADC are Packaged in 1 Chip I2C External I/F Supports 400kHz Fast Mode Repeated Data Acquisition Mode & Measurement Completion Interrupt Mode 1.8V Single Power Supply Operation Automatic Power Down Function After Measurement Completion Sensor Driver With Soft-Iron Effect Compensation Algorithm Best-In-Class Ultra Low Power 1chip Magnetic Field Sensor Supply Power Voltage: 1.8V (single) Dynamic Range: 2000μT Sensitivity: 0.3μT/count Magnetic Sensor‘X’Axis 4mA only INTENSITY 4.00 Fe a t u r e s & Sp e c s. Ta r ge t Ap p l i c a t i o n s 1. Smartphone 2. Tablet Computer 3. Mobile GPS Device CURRENT INT N.C. VDD Top View This is a preliminary information, and subject to change without notice. Please refer to the latest information for your design. YAS537 MAGNETIC FIELD SENSOR Low Power Operation I n d u s t r y’ s S m a l l e s t • Tiny 1.2 mm × 1.2 mm package 36% footprint reduction in chip packaging over our previous generation (YAS532 MS-3R) device makes YAS537 one of the smallest on the market. • Industry's smallest e-compass The chip needs just three additional components for complete e-compass subsystem making it the industry's smallest e-compass which easily fits even in today's densely populated smartphone PCBs. • Faster sampling / Self power down New low noise high sensitivity sensor element makes sampling faster and its duty cycle lower making the self power down control more effective to reduce the operating current. • Single 1.8 V supply operation Our sensor element technology allows lower voltage across the sensor bridge and the whole chip runs off a single 1.8 V supply, helping to achieve unmatched low power operation. Sof t Ir on E r r or Fr e e C o n f i gu r a b l e S e l f Ti m e d S a m p l i n g • Repeated periodic sampling Built-in sequencer runs by itself, samples, and updates data at configured interval offloading the host processor which just reads out the current values at its convenient time. • New-data-ready interrupt Doing repeated periodic sampling with this host interrupt makes getting sample sequences at a precise interval easy without using any host timer resources. • Configurable averaging How raw sensor element outputs are averaged can be configured differently for different applications allowing high frequency spurious to be removed to show the underlying signal. • Unique algorithm to dynamically adjust soft iron error Also provided is our YAS537 device driver software specifically equipped with an algorithm to keep adjusting for changing soft iron distortion. This allows the users to run e-compass applications correctly on portable devices even if their construction use some soft iron materials. YAS537 Specification [Preliminary] Recommended Operating Condition Parameter Supply Voltage (VDD) Supply Voltage (VDD18) Operating Ambient Temperature Power supply ramp up time Characteristics Parameter Standby Current (TOP=25℃) Current drawn from VDD during magnetic field acquisition Current drawn from VDD during temperature acquisition Current drawn during standby (Repeated data acquisition) Maximum Measurable Magnetic Field Magnetic Field Sensitivity(X,Y,Z) Sensitivity Axis Deviation Temperature Acquisition Range Temperature Resolution Acquisition Time Initialization Time after all power supplies reach the operating ranges Symbol VVDD VVDD18 TOP TVON Min. Symbol Min. Typ. 1.65 1.65 -40 0.01 Max. 1.8 1.8 25 Typ. Unit 3.6 1.95 85 50 Max. V V o C ms Unit μA 1.5 (TBD) 4 mA 1.5 mA 10 μA 2000 0.3 μT μT/count ±5 85 -40 0.05 1.3 TDOP Semiconductor Div. 203 Matsunoki-jima,Iwata,Shizuoka 438-0192 Japan http://www.yamaha.co.jp/english/product/lsi/ o C C/count ms o 4 ms Customer Service ・The content is subject to change without notice. Head Quarter TEL : +81-539-62-4918 ・Unauthorized use of this document is prohibited. Shanghai Office TEL : +86-21-6247-2211 ・These introductory information cannot be used for designs. Seoul Office TEL : +82-2-3467-330 Check with us for technical ones. Taipei Office TEL : +886-2-2571-5956 ・Brand and product names used are trademarks of their Mail (English) : [email protected] respective holders. Created in Feb. 2014 Document Code: PBAS537A-000-01-e This is a preliminary information, and subject to change without notice. Please refer to the latest information for your design.