Overview

AK8963 is 3-axis electronic compass IC with high sensitive Hall sensor technology.

Small package of AK8963 incorporates magnetic sensors for detecting terrestrial magnetism in the X-axis, Y-axis, and Z-axis, a sensor driving circuit, signal amplifier chain, and an arithmetic circuit for processing the signal from each sensor. Self test function is also incorporated. From its compact foot print and thin package feature, it is suitable for map heading up purpose in GPS-equipped cell phone to realize pedestrian navigation function.

Features

A 3-axis electronic compass IC with high sensitive Hall sensor technology.

Best adapted to pedestrian city navigation use for cell phone and other portable appliance.

Functions:

• 3-axis magnetometer device suitable for compass application

• Built-in A to D Converter for magnetometer data out

• 14-/16-bit selectable data out for each 3 axis magnetic components

- Sensitivity:

0.6 µT/LSB typ. (14-bit)

0.15µT/LSB typ. (16-bit)

• Serial interface

- I2C bus interface.

Standard mode and Fast mode compliant with Philips I2C specification Ver.2.1

- 4-wire SPI

• Operation modes:

Power-down, Single measurement, Continuous measurement,

External trigger measurement, Self test and Fuse ROM access.

• DRDY function for measurement data ready

• Magnetic sensor overflow monitor function

• Built-in oscillator for internal clock source

• Power on Reset circuit

• Self test function with built-in internal magnetic source

Operating temperatures:

• -30°C to +85°C

Operating supply voltage:

• Analog power supply +2.4V to +3.6V

• Digital Interface supply +1.65V to analog power supply voltage.

Current consumption:

• Power-down: 3 µA typ.

• Measurement:

- Average power consumption at 8 Hz repetition rate: 280µA typ.

Package:

AK8963C 14-pin WL-CSP (BGA): 1.6 mm × 1.6 mm × 0.5 mm (typ.)

AK8963N 16-pin QFN package: 3.0 mm × 3.0 mm × 0.75 mm (typ.)