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PDF MMA2200W Data sheet ( Hoja de datos )
| Número de pieza | MMA2200W | |
| Descripción | Sensor | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MMA2200W (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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MOTOROLA
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MMA1201P/D
Micromachined Accelerometer
The MMA series of silicon capacitive, micromachined accelerometers
features signal conditioning, a 4–pole low pass filter and temperature
compensation. 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
• 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
• Two Packaging Options Available:
1) Plastic DIP for Z Axis Sensing (MMA1201P)
2) Wingback for X Axis Sensing (MMA2200W)
Typical Applications
• Vibration Monitoring and Recording
• Appliance Control
• Mechanical Bearing Monitoring
• Computer Hard Drive Protection
• Computer Mouse and Joysticks
• Virtual Reality Input Devices
• Sports Diagnostic Devices and Systems
MMA1201P
MMA2200W
MMA1201P: Z AXIS SENSITIVITY
MMA2200W: X AXIS SENSITIVITY
MICROMACHINED
ACCELEROMETER
± 40g
12 11 10 9
13
14
15
16
8
67
5
4
1 23
DIP PACKAGE
CASE 648C–04
MMA1201P
123 45 6
WB PACKAGE
CASE 456–06
MMA2200W
SIMPLIFIED ACCELEROMETER FUNCTIONAL BLOCK DIAGRAM
G–CELL
SENSOR
INTEGRATOR
GAIN
FILTER
TEMP
COMP
VDD
VOUT
VST
SELF–TEST
CONTROL LOGIC &
EPROM TRIM CIRCUITS
OSCILLATOR
CLOCK GEN.
VSS
REV 0
STATUS
Figure 1. Simplified Accelerometer Functional Block Diagram
© MMotootroolrao, lIanc.S2e0n00sor Device Data For More Information On This Product,
Go to: www.freescale.com
1
1 page  
VDD
LOGIC
INPUT
C1
0.1 µF
Freescale Semiconductor, Inc. MMA1201P MMA2200W
MMA2200W
4
2 ST
R1
6 VDD
VOUT 3 1 kΩ
5 VSS
C2
0.01 µF
STATUS
OUTPUT
SIGNAL
VDD
LOGIC
INPUT
C1
0.1 µF
MMA1201P
6
4 ST
R1
8 VDD
VOUT 5 1 kΩ
7 VSS
C2
0.01 µF
STATUS
OUTPUT
SIGNAL
Figure 4. Wingback Accelerometer with
Recommended Connection Diagram
Pinout Description for the DIP Package
N/C
N/C
N/C
ST
VOUT
STATUS
VSS
VDD
1
2
3
4
5
6
7
8
16 N/C
15 N/C
14 N/C
13 N/C
12 N/C
11 N/C
10 N/C
9 N/C
Pin No.
1
Pin Name
—
2 thru 3
—
4 ST
5 VOUT
6 Status
7
8
9 thru 13
VSS
VDD
Trim Pins
14 thru 16
—
Description
Leave unconnected or connect to
signal ground.
No internal connection. Leave
unconnected.
Logic input pin to initiate self
test.
Output voltage
Logic output pin to indicate
fault.
Signal ground
Supply voltage (5 V)
Used for factory trim. Leave
unconnected.
No internal connection. Leave
unconnected.
Figure 5. DIP Accelerometer with Recommended
Connection Diagram
PCB Layout
STATUS
P1
ST P0
VOUT
VSS
VDD
R A/D IN
1 kΩ C 0.01 µF
C 0.1 µF
VRH
C 0.1 µF
VSS
C 0.1 µF
VDD
POWER SUPPLY
Figure 6. Recommend PCB Layout for Interfacing
Accelerometer to Microcontroller
NOTES:
• Use a 0.1 µF capacitor on VDD to decouple the power
source.
• Physical coupling distance of the accelerometer to the
microcontroller should be minimal.
• Place a ground plane beneath the accelerometer to reduce
noise, the ground plane should be attached to all of the
open ended terminals shown in Figure 6.
• Use an RC filter of 1 kΩ and 0.01 µF on the output of the
accelerometer to minimize clock noise (from the switched
capacitor filter circuit).
• PCB layout of power and ground should not couple power
supply noise.
• Accelerometer and microcontroller should not be a high
current path.
• A/D sampling rate and any external power supply switching
frequency should be selected such that they do not inter-
fere with the internal accelerometer sampling frequency.
This will prevent aliasing errors.
Motorola Sensor Device Data For More Information On This Product,
Go to: www.freescale.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MMA2200W.PDF ] | |
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