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PDF MMA6262QR2 Data sheet ( Hoja de datos )
| Número de pieza | MMA6262QR2 | |
| Descripción | 1.5g Dual Axis Micromachined Accelerometer | |
| Fabricantes | Motorola Semiconductors | |
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Freescale Semiconductor
Technical Data
±1.5g Dual Axis
Micromachined Accelerometer
The MMA6200 series of low cost capacitive micromachined accelerometers
feature signal conditioning, a 1-pole low pass filter and temperature compen-
sation. 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 function-
ality.
Features
• High Sensitivity
• Low Noise
• Low Power
• 2.7 V to 3.6 V Operation
• 6mm x 6mm x 1.98 mm QFN
• Integral Signal Conditioning with Low Pass Filter
• Linear Output
• Ratiometric Performance
• Self-Test
• Robust Design, High Shocks Survivability
Typical Applications
• Tilt Monitoring
• Position & Motion Sensing
• Freefall Detection
• Impact Monitoring
• Appliance Control
• Vibration Monitoring and Recording
• Smart Portable Electronics
ORDERING INFORMATION
Device Name
MMA6260Q
MMA6260QR2
MMA6261Q
MMA6261QR2
MMA6262Q
MMA6262QR2
MMA6263Q
MMA6263QR2
Bandwidth
Response
50 Hz
50 Hz
300 Hz
300 Hz
150 Hz
150 Hz
900 Hz
900 Hz
IDD
1.2 mA
1.2 mA
1.2 mA
1.2 mA
2.2 mA
2.2 mA
2.2 mA
2.2 mA
Case No.
1477-01
1477-01
1477-01
1477-01
1477-01
1477-01
1477-01
1477-01
Package
QFN-16, Tube
QFN-16,Tape & Reel
QFN-16, Tube
QFN-16,Tape & Reel
QFN-16,Tube
QFN-16,Tape & Reel
QFN-16, Tube
QFN-16,Tape & Reel
MMA6260Q
Rev. 2, 10/2004
MMA6260Q
MMA6261Q
MMA6262Q
MMA6263Q
MMA6260Q Series: X-Y AXIS SENSITIVITY
MICROMACHINED ACCELEROMETER
±1.5 g
Bottom View
16 LEAD QFN
CASE 1477-01
Pin Assignment
Top View
16 15 14 13
N/C 1
12 ST
N/C 2
VDD 3
11 N/C
10 N/C
VSS 4
9 N/C
56 7 8
© Freescale Semiconductor, Inc., 2004. All rights reserved.
1 page  
BASIC CONNECTIONS
Top View
16 15 14 13
N/C 1
12 ST
N/C 2
VDD 3
11 N/C
10 N/C
VSS 4
9 N/C
56 7 8
Figure 3. Pinout Description
Pin No.
1, 5 - 7, 13, 16
14
15
3
4
2, 8 - 11
12
Pin
Name
N/C
YOUT
XOUT
VDD
VSS
N/C
ST
Description
No internal connection.
Leave unconnected.
Output voltage of the accelerometer. Y
Direction.
Output voltage of the accelerometer. X
Direction.
Power supply input.
The power supply ground.
Used for factory trim.
Leave unconnected.
Logic input pin used to initiate
self-test.
VDD
0.1 µF
Logic
Input
MMA6260Q
Series
3 VDD
YOUT 14 1 kΩ
4 VSS
12
ST
0.1 µF
XOUT 15 1 kΩ
0.1 µF
Figure 4. Accelerometer with Recommended Connection
Diagram
ST P0
XOUT
R A/D IN
1 kΩ C 0.1 µF
YOUT
VSS
VDD
R A/D IN
1 kΩ C 0.1 µF
C 0.1 µF
VRH
C 0.1 µF
VSS
VDD
C 0.1 µF
POWER SUPPLY
Figure 5. Recommend PCB Layout for Interfacing
Accelerometer to Microcontroller
Notes:
1. Use 0.1 µF capacitor on VDD to decouple the power
source.
2. Physical coupling distance of the accelerometer to the
microcontroller should be minimal.
3. Flag underneath package is connected to ground.
4. 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 5.
5. Use an RC filter with 1.0 kΩ and 0.1 µF on the outputs of
the accelerometer to minimize clock noise (from the
switched capacitor filter circuit).
6. PCB layout of power and ground should not couple power
supply noise.
7. Accelerometer and microcontroller should not be a high
current path.
8. A/D sampling rate and any external power supply
switching frequency should be selected such that they do
not interfere with the internal accelerometer sampling
frequency (16 kHz for Low IDD and 52 kHz for Standard
IDD for the sampling frequency). This will prevent aliasing
errors.
Sensor Device Data
Freescale Semiconductor
MMA6200 SERIES
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MMA6262QR2.PDF ] | |
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