MMA6233QR2 Freescale Semiconductor, MMA6233QR2 Datasheet - Page 5

• Manufacturer Part Number: MMA6233QR2
• Description: SENSOR ACCEL X/Y-AXIS 10G 16-QFN
• Manufacturer: Freescale Semiconductor
• Series: MMA6200r

Specifications of MMA6233QR2

• Axis: X, Y
• Acceleration Range: ±10g
• Sensitivity: 120mV/g
• Voltage - Supply: 2.7 V ~ 3.6 V
• Output Type: Analog
• Bandwidth: 900Hz
• Mounting Type: Surface Mount
• Package / Case: 16-QFN Exposed Pad
• Sensing Axis: X, Y
• Acceleration: 10 g
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Sensors
Freescale Semiconductor
Pinout Description
1, 5–7, 13, 16
V
Pin No.
DD
2, 8–11
0.1 µF
Figure 5. Accelerometer with Recommended
14
15
12
3
4
Logic
Input
V
V
Figure 4. Pinout Description
NC
NC
DD
SS
12
3
4
Name
Y
X
V
N/C
V
N/C
Pin
ST
OUT
OUT
ST
Connection Diagram
V
V
DD
SS
2
4
1
3
DD
SS
MMA6200Q
16
5
Series
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.
Top View
15
6
Y
X
14 13
OUT
OUT
7
8
14
15
Description
0.1 µF
0.1 µF
11
10
12
9 N/C
1 kΩ
1 kΩ
N/C
N/C
ST
BASIC CONNECTIONS
X Output
Signal
Y Output
Signal
PCB Layout
NOTES:
1. Use 0.1 µF capacitor on V
2. Physical coupling distance of the accelerometer to the
3. Flag underneath package is connected to ground.
4. Place a ground plane beneath the accelerometer to
5. Use an RC filter with 1.0 kΩ and 0.1 µF on the outputs
6. PCB layout of power and ground should not couple
7. Accelerometer and microcontroller should not be a
8. A/D sampling rate and any external power supply
9. PCB layout should not run traces or vias under the
Figure 6. Recommend PCB Layout for Interfacing
source.
microcontroller should be minimal.
reduce noise, the ground plane should be attached to
all of the open ended terminals shown in
of the accelerometer to minimize clock noise (from the
switched capacitor filter circuit).
power supply noise.
high current path.
switching frequency should be selected such that they
do not interfere with the internal accelerometer
sampling frequency (16 kHz for Low I
Standard I
prevent aliasing errors.
QFN part. This could lead to ground shorting to the
accelerometer flag.
X
Y
V
OUT
OUT
V
ST
DD
SS
Accelerometer to Microcontroller
C
Power Supply
1 kΩ
DD
1 kΩ
0.1 µF
R
R
for the sampling frequency). This will
C
C
C
0.1 µF
0.1 µF
0.1 µF
DD
A/D IN
A/D IN
P0
V
RH
to decouple the power
DD
V
V
DD
and 52 kHz for
SS
Figure
MMA6231Q
C
0.1 µF
6.
5