MMA1201P Freescale Semiconductor, MMA1201P Datasheet - Page 5

• Manufacturer Part Number: MMA1201P
• Description: SENS ACCEL Z-AXIS +-38G 16-DIP
• Manufacturer: Freescale Semiconductor

Specifications of MMA1201P

• Axis: Z
• Acceleration Range: ±38g
• Sensitivity: 50mV/g
• Voltage - Supply: 4.75 V ~ 5.25 V
• Output Type: Analog
• Bandwidth: 400Hz
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Package Type: PDIP
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 6.6mm
• Mounting: Through Hole
• Pin Count: 16
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

14 thru 16
Motorola Sensor Device Data
V DD
9 thru 13
Pin No.
2 thru 3
0.1 F
1
4
5
6
7
8
C1
LOGIC
INPUT
Figure 4. Wingback Accelerometer with
Pinout Description for the DIP Package
Recommended Connection Diagram
STATUS
Pin Name
Trim Pins
V OUT
Status
V OUT
V DD
V SS
V DD
V SS
N/C
N/C
N/C
ST
2
6
5
ST
—
—
—
ST
V DD
V SS
1
2
3
4
5
6
7
8
MMA2200W
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
Leave unconnected or connect to
No internal connection. Leave
Logic input pin to initiate self
Output voltage
Logic output pin to indicate
Signal ground
Supply voltage (5 V)
Used for factory trim. Leave
No internal connection. Leave
signal ground.
unconnected.
test.
fault.
unconnected.
unconnected.
V OUT
16
15
14
13
12
11
10
Freescale Semiconductor, Inc.
9
For More Information On This Product,
Description
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
3
0.01 F
4
C2
1 k
R1
Go to: www.freescale.com
STATUS
OUTPUT
SIGNAL
NOTES:
PCB Layout
V DD
Use a 0.1 F capacitor on V DD 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 k and 0.01 F 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.
Figure 6. Recommend PCB Layout for Interfacing
Figure 5. DIP Accelerometer with Recommended
0.1 F
STATUS
C1
V OUT
LOGIC
INPUT
V DD
V SS
ST
Accelerometer to Microcontroller
C 0.1 F
POWER SUPPLY
1 k
4
8
7
R
Connection Diagram
ST
V DD
V SS
C
MMA1201P
C
0.01 F
MMA1201P MMA2200W
0.1 F
V OUT
P1
P0
A/D IN
V RH
6
5
0.01 F
C2
1 k
R1
V DD
V SS
STATUS
C
OUTPUT
SIGNAL
0.1 F
5