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參數(shù)資料
| 型號： | MMA1270D |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Low G Micromachined Accelerometer(小重力微電機(jī)加速計) |
| 中文描述： | 低摹微加速度計（小重力微電機(jī)加速計） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 249K |
| 代理商： | MMA1270D |
5
Motorola Sensor Device Data
BASIC CONNECTIONS
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Figure 4. Pinout Description
Pin No.
Pin Name
Description
1 thru 3
V
SS
Redundant connections to the internal
V
SS
and may be left unconnected.
Output voltage of the accelerometer.
4
V
OUT
STATUS
5
Logic output pin used to indicate fault.
6
V
DD
V
SS
ST
The power supply input.
7
The power supply ground.
8
Logic input pin used to initiate self–
test.
9 thru 13
Trim pins
Used for factory trim.
Leave unconnected.
14 thru 16
—
No internal connection.
Leave unconnected.
$%
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'
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'
!&%
!&%"&%
$
#
+
μ
!
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'
μ
Figure 5. SOIC Accelerometer with Recommended
Connection Diagram
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PCB Layout
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'
μ
+
μ
μ
"!(# $&""*
#
μ
Figure 6. Recommended PCB Layout for Interfacing
Accelerometer to Microcontroller
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NOTES:
Use a 0.1
μ
F capacitor on V
DD
to decouple the power
source.
Physical coupling distance of the accelerometer to the mi-
crocontroller should be minimal.
Place a ground plane beneath the accelerometer to reduce
noise, the ground plane should be attached to all internal
V
SS
terminals shown in Figure 4.
Use an RC filter of 1 k
and 0.1
μ
F on the output of the ac-
celerometer 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.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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| MMA1270EG | 功能描述:加速計 - 板上安裝 COLOSSUS 2.5G RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| MMA1270EGR2 | 功能描述:加速計 - 板上安裝 COLOSSUS 2.5G RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
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| MMA1270KEGR2 | 功能描述:加速計 - 板上安裝 COLOSSUS 2.5G RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| MMA-15 | 制造商:ASTRODYNE 制造商全稱:Astrodyne Corporation 功能描述:15W Medical Grade Ultraminiature Switching Power Supplies |
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