MMA6361LR1 Freescale Semiconductor, MMA6361LR1 Datasheet - Page 5

• Manufacturer Part Number: MMA6361LR1
• Description: IC ACCELER 1.5G XY-AXIS 14LGA
• Manufacturer: Freescale Semiconductor

Specifications of MMA6361LR1

• Sensing Axis: X, Y
• Acceleration: 1.5 g, 6 g
• Sensitivity: 221.5 mV/g, 860 mV/g
• Package / Case: LGA-14
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.2 V
• Supply Current: 400 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Sensors
Freescale Semiconductor
Table 4. Pin Descriptions
Pin Descriptions
Pin No. Pin Name
V DD
10
11
12
13
14
1
2
3
4
5
6
7
8
9
0.1 μF
Figure 5. Accelerometer with Recommended
Logic
Input
Logic
Input
g-Select
Sleep
X
Y
GND
V
V
N/C
N/C
N/C
N/C
N/C
N/C
NC
OUT
OUT
SS
DD
Figure 4. Pinout Description
X
Y
N/C
V
N/C
V
OUT
OUT
10
13
Connection Diagram
DD
SS
Logic input pin to select g level
Connect to Ground.
No internal connection. Leave unconnected.
X direction output voltage.
Y direction output voltage,
Unused for factory trim. Leave unconnected.
Power Supply Ground.
Power Supply Input.
Logic input pin to enable product or Sleep Mode
No internal connection. Leave unconnected.
No internal connection. Leave unconnected.
Unused for factory trim. Leave unconnected.
Unused for factory trim. Leave unconnected.
Unused for factory trim. Leave unconnected.
6
5
7
g-Select
GND
V DD
V SS
Sleep
Top View
MMA6361L
Sleep
N/C
Description
Y OUT
X OUT
GND
N/C
N/C
g-Select
N/C
N/C
2
3
3.3 nF
3.3 nF
BASIC CONNECTIONS
PCB Layout
NOTES:
Figure 6. Recommended PCB Layout for Interfacing
1. Use 0.1 µF capacitor on V
2. Physical coupling distance of the accelerometer to
3. Place a ground plane beneath the accelerometer to
4. Use a 3.3 nF capacitor on the outputs of the
5. PCB layout of power and ground should not couple
6. Accelerometer and microcontroller should not be a
7. A/D sampling rate and any external power supply
8. 10 MΩ or higher is recommended on X
source.
the microcontroller should be minimal.
reduce noise, the ground plane should be attached to
all of the open ended terminals shown in
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 (11 kHz for the sampling
frequency). This will prevent aliasing errors.
Z
relationship between the internal 32 kΩ resistor and
the measurement input impedance.
g-Select
OUT
Sleep
X
Y
GND
V
V
OUT
OUT
DD
SS
Accelerometer to Microcontroller
to prevent loss due to the voltage divider
POWER SUPPLY
C
C
C
DD
C
C
to decouple the power
A/D
A/D
V
P0
P1
RH
IN
IN
OUT
MMA6361L
Figure
, Y
V
V
OUT
DD
SS
6.
and
C
C
5