KIT3376MMA7361LC Freescale Semiconductor, KIT3376MMA7361LC Datasheet

Analog Output Accelerometer Evaluation Board

KIT3376MMA7361LC

Manufacturer Part Number
KIT3376MMA7361LC
Description
Analog Output Accelerometer Evaluation Board
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of KIT3376MMA7361LC

Silicon Manufacturer
Freescale
Application Sub Type
Accelerometer
Kit Application Type
Sensing - Motion / Vibration / Shock
Silicon Core Number
MMA7360
Acceleration
1.5 g, 6 g
Operating Current
400 uA
Operating Voltage
3.3 V
Output Type
Analog
Sensing Axis
Triple Axis
Sensitivity
800 mV/g to 206 mV/g
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
MMA7361LC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Freescale Semiconductor
Application Note
The MMA73x0L Analog Output
Accelerometer Evaluation Boards
by: Kimberly Tuck and John Young
MMA7340L (3g & 11g) and MMA7330L (4g & 12g) evaluation
boards for Freescale’s multi-axis (X, Y, Z) analog output
LGA-14 packaged 3x5x1 mm
accelerometers. This document provides the information
about the evaluation board featuring the accelerometer
boards intended to be used for evaluating the accelerometers
and developing prototypes quickly without requiring a PCB to
be designed to accommodate for the small LGA package. It
also provides a means for understanding the best mounting
position and location of an accelerometer in the product with
the provided board mounting points.
accelerometers are the following:
© Freescale Semiconductor, Inc., 2007. All rights reserved.
Table 1. MMA73x0L Accelerometer Characteristics
MMA7360
MMA7340
MMA7330
Part No.
This application note describes the MMA7360L (1.5g & 6g),
The accelerometer evaluation boards are small circuit
Some examples of the applications for these
Systems and Applications Engineers
Tempe, AZ
3D-Gaming: Tilt and Motion Sensing, Event Recorder
HDD MP3 Player: Freefall Detection
Laptop PC: Freefall Detection, Anti-Theft
Cell Phone: Image Stability, Text Scroll, Motion Dialing,
Pedometer: Motion Sensing
PDA: Text Scroll
Navigation and Dead Reckoning: E-Compass Tilt
Robotics: Motion Sensing
E-Compass
Compensation
Acceleration
1.5/6
3/11
4/12
(g)
INTRODUCTION
Sensitivity
440/117.8
3
308/83.6
800/206
(mV/g)
variable capacitance sensing
Zero g Output
1.65
1.65
(V)
1.4
V
DD
Voltage
(V)
3.3
3.3
2.8
Supply
devices. The operation of the MMA73x0L accelerometers are
explained including the circuit descriptions and diagrams,
showing the pin-outs with the corresponding functionality of
the features. This document also includes a quick start guide
using the evaluation board.
micromachined integrated-circuit accelerometers. These
devices consist of a capacitive sensing g-cell consisting of an
X-Y and a Z cell all within a single package, which is sealed
hermetically at the wafer level using a bulk micromachined
cap wafer. The g-cell is the sensing element of the system
which consists of polysilicon mechanical structures.
Acceleration is detected when a displacement in X, Y, or Z is
detected in the g-cells. The displacement creates a change in
capacitance. The ASIC uses a switched capacitor technique
to measure the g-cell capacitors and the acceleration data is
extracted from a difference in the capacitance. The ASIC
provides signal conditioning and filtering to convert the
capacitance into a high level output voltage which is
ratiometric and proportional to the acceleration. The g-cells
are combined with the signal conditioning ASIC in a single
integrated circuit package.
The MMA73x0L accelerometers are surface-
I
DD
(µA)
Current
400
400
400
Rolloff Frequency
DESCRIPTION
400 X,Y
400 X,Y
400 X,Y
300 Z
300 Z
300 Z
(Hz)
0g-Detect
Yes
Yes
No
Rev 3, 08/2007
Package
AN3376
LGA
LGA
LGA

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KIT3376MMA7361LC Summary of contents

Page 1

... PDA: Text Scroll Navigation and Dead Reckoning: E-Compass Tilt Compensation Robotics: Motion Sensing © Freescale Semiconductor, Inc., 2007. All rights reserved. devices. The operation of the MMA73x0L accelerometers are explained including the circuit descriptions and diagrams, showing the pin-outs with the corresponding functionality of the features ...

Page 2

... N/C Sleep 3 3.3 nF 0.1 μF 3.3 nF ON/OFF V DD Switch Figure 1. Schematic + N Figure 2. Pin-Out and Polarity for MMA73x0L CIRCUIT DESCRIPTION and Figure 2 are circuit schematics of the Figure 3 +Z Top Side View +X Bottom -Z : Arrow indicates direction of package movement. Freescale Semiconductor shows Sensors ...

Page 3

... The pads on the side of the board also provide a means for connecting to the accelerometer analog output by soldering a wire from the evaluation board to another breadboard or system. The main on/off switch enables the power to the accelerometer and helps preserve battery life if a Sensors Freescale Semiconductor Top View ...

Page 4

... Sensitivity and Z outputs are 0g a high signal is sent to the 0g-Detect 800 mV/g output pin. This verifies the self test and the freefall protection functionality. 206 mV/g Sensitivity 440 mV/g 117.8 mV/g g-Range Sensitivity 4g 308 mV/g 12g 83.6 mV Sensors Freescale Semiconductor ...

Page 5

... Self Test Pushbutton Sleep Mode G-Select On/Off Switch Sensors Freescale Semiconductor position. This will activate the device showing X, Y and Z outputs on the X, Y and Z output pads. 4. Connect the X, Y and Z outputs to an oscilloscope to view the outputs, or you can also solder these pads to a microcontroller or any other measuring device ...

Page 6

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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