mma3201keg Freescale Semiconductor, Inc, mma3201keg Datasheet

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mma3201keg

Manufacturer Part Number
mma3201keg
Description
Surface Mount Micromachined Accelerometer
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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MMA3201KEG
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VXP
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MMA3201KEG
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20 000
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mma3201kegR2
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Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2009. All rights reserved.
Surface Mount
Micromachined Accelerometer
accelerometers features signal conditioning, a 4-pole low pass filter and
temperature compensation, and separate outputs for the two axes. Zero-g offset
full scale span and filter cut-off are factory set and require no external devices. A
full system self-test capability verifies system functionality.
Features
Typical Applications
MMA3201EG
MMA3201EGR2
MMA3201KEG*
MMA3201KEGR2*
*Part number sourced from a different facility.
The MMA3201 series of dual axis (X and Y) silicon capacitive, micromachined
ST
Device Name
Sensitivity in two separate axes: 40g X-axis and 40g Y-axis
Integral Signal Conditioning
Linear Output
Ratiometric Performance
4th Order Bessel Filter Preserves Pulse Shape Integrity
Calibrated Self-test
Low Voltage Detect, Clock Monitor, and EPROM Parity Check Status
Transducer Hermetically Sealed at Wafer Level for Superior Reliability
Robust Design, High Shocks Survivability
Qualified AEC-Q100, Rev. F Grade 2 (-40°C/ +105°C)
Vibration Monitoring and Recording
Impact Monitoring
Appliance Control
Mechanical Bearing Monitoring
Computer Hard Drive Protection
Computer Mouse and Joysticks
Virtual Reality Input Devices
Sports Diagnostic Devices and Systems
Figure 1. Simplified Accelerometer Functional Block Diagram
Self-test
Sensor
G-Cell
Temperature Range
Integrator
EPROM Trim Circuits
–40 to +125°C
–40 to +125°C
–40 to +125°C
–40 to +125°C
ORDERING INFORMATION
Control Logic &
STATUS
Gain
Case No,
475A-02
475A-02
475A-02
475A-02
Oscillator
Filter
SOIC-20, Tape & Reel
SOIC-20, Tape & Reel
Comp
Temp
Generator
Package
SOIC-20
SOIC-20
Clock
V
V
V
OUT
DD
SS
MMA3201KEG: XY-AXIS SENSITIVITY
STATUS
AV
X
V
N/C
N/C
N/C
N/C
V
OUT
ST
MMA3201KEG
DD
DD
SS
Figure 2. Pin Connections
KEG SUFFIX (Pb-FREE)
ACCELEROMETER
MICROMACHINED
20-LEAD SOIC
CASE 475A-02
1
2
3
4
5
6
7
8
9
10
±40g
Rev 0, 11/2009
MMA3201KEG
20
19
18
17
16
15
14
13
12
11
GND
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
Y
OUT

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mma3201keg Summary of contents

Page 1

... SOIC-20, Tape & Reel 475A-02 SOIC-20 475A-02 SOIC-20, Tape & Reel V DD Temp V Gain Filter Comp OUT Clock Oscillator Generator V SS MMA3201KEG Rev 0, 11/2009 MMA3201KEG MMA3201KEG: XY-AXIS SENSITIVITY MICROMACHINED ACCELEROMETER ±40g KEG SUFFIX (Pb-FREE) 20-LEAD SOIC CASE 475A-02 N/C GND N/C N/C N N/C N/C ...

Page 2

... Although the Freescale accelerometers contain internal 2 kV ESD protection circuitry, extra precaution must be taken by the user to protect the chip from ESD. A charge of over 2000 volts can accumulate on the human body or associated test equipment. A charge of this magnitude can alter the MMA3201KEG 2 Symbol G pd ...

Page 3

... V — DD — –110 –300 2.0 – — 0.4 — — 3.25 4.0 — 260 0.2 — — V –0.25 DD — 100 300 — — 5.0 % FSO 10 — /2. DD MMA3201KEG (1) ) Unit V mA ° mV μ kHz Ω kHz 3 ...

Page 4

... Acceleration Acceleration Figure 3. Transducer Figure 4. Equivalent Physical Model MMA3201KEG 4 PRINCIPLE OF OPERATION Filtering The Freescale accelerometers contain an on board 4-pole switched capacitor filter. A Bessel implementation is used because it provides a maximally flat delay response (linear phase) thus preserving pulse shape integrity ...

Page 5

... This will prevent aliasing errors. STATUS R1 1 kΩ X Output Signal C2 0.01 μ kΩ Y Output Signal A kΩ 0.1 μ A 0.1 μF 1 kΩ C 0.1 μ 0.1 μ 0.1 μF Power Supply Accelerometer to Microcontroller to decouple the power DD Figure MMA3201KEG 6. 5 ...

Page 6

... X and Y outputs 1516 Front View * When positioned as shown, the Earth’s gravity will result in a positive 1g output in the X channel. MMA3201KEG 6 Dynamic Acceleration Sensing Direction +Y N/C GND N/C ...

Page 7

... It is always recommended to design boards with a solder mask layer to avoid bridging and shorting between solder pads. 0.380 in. 9.65 mm 0.080 in. 2.03 mm Figure 7. Footprint SOIC-20 (Case 475A-01) 0.050 in. 1.27 mm 0.024 in. 0.610 mm MMA3201KEG 7 ...

Page 8

... MMA3201KEG 8 PACKAGE DIMENSIONS CASE 475A-02 ISSUE C 20-LEAD SOIC PAGE Sensors Freescale Semiconductor ...

Page 9

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 475A-02 CASE 475A-02 ISSUE C ISSUE C 20-LEAD SOIC 20-LEAD SOIC PAGE MMA3201KEG 9 ...

Page 10

... RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http:/www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program http://www.freescale.com/epp. MMA3201KEG Rev. 0 11/2009 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products ...

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