參數(shù)資料
型號(hào)： DEMOMPR083
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 15/35頁(yè)
文件大?。?/td> 0K
描述： BOARD DEMO FOR MPR083 CTLR
產(chǎn)品培訓(xùn)模塊： Sensor Toolbox
標(biāo)準(zhǔn)包裝： 1
傳感器類(lèi)型： 觸摸，電容式
傳感范圍： 8 個(gè)按鈕/鍵
接口： I²C
電源電壓： 1.8 V ~ 3.6 V
嵌入式： 是，MCU，8 位
已供物品： 板，電池
已用 IC / 零件： MPR083
產(chǎn)品目錄頁(yè)面： 2808 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： MPR083EJR2CT-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083QR2-ND - IC CTLR TOUCH SENSOR PROX 16-QFN
MPR083Q-ND - IC CTLR TOUCH SENSOR PROX 16-QFN
MPR083EJR2TR-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083EJ-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083
Sensors
22
Freescale Semiconductor
9
Sensitivity
9.1
Introduction
The MPR083 can operate in a variety of environments with a variety of different electrode patterns. Because of this it is necessary
to adjust the relative sensitivity of the sensor controller. Usually this requires fine tuning in any final application.
There are many factors that must be taken into account, but much of the time this value is relative to the capacitance changes
generated by a touch. Since capacitance is directly proportional to the dielectric constant of the material and the area of the pad,
while inversely proportional to the distance between pads these are the primary factors.
Equation 8
As the relative capacitance rises the sensitivity setting of the MPR083 should be adjusted accordingly. Thus a very high sensitivity
value represents a large A and a small d.
9.2
Adjusting the Sensitivity
The sensitivity of the MPR083 is adjusted by varying the Sensitivity Threshold Register.
9.2.1
Sensitivity Threshold Register
The sensitivity register allows the sensitivity of the MPR083 to be adjusted for any situation. The I2C slave address of the
Sensitivity Threshold Register is 0x04.
Figure 26. Sensitivity Threshold Register
7
6
543210
R
SL
W
Reset:
0
000000
= Unimplemented
Table 16. Sensitivity Threshold Register Field Descriptions
Field
Description
7:0
ST
Sensitivity Threshold – The Sensitivity Threshold selects or reports the sensitivity
setting of the Sensor Controller. The resulting value must be in the range 1 to 64
units. If the value is outside of this range the ST will be set to 00111111.
00000000 Encoding 0 – Sets the sensitivity to level 1
~
00111111 Encoding 63 – Sets the sensitivity to level 64
C
ke0A
d
------------
=
相關(guān)PDF資料
PDF描述
0210390880 CABLE JUMPER 1MM .076M 19POS
EEM28DTBI CONN EDGECARD 56POS R/A .156 SLD
ADR02ARZ-REEL IC VREF SERIES PREC 5V 8-SOIC
EA-OEM-410 KIT LPC3250 259 WITH QVGA
VI-J7P-EZ CONVERTER MOD DC/DC 13.8V 25W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DEMO-MSA 制造商:Avago Technologies 功能描述:DEMOBOARD MSA-XX05,10,11,36,70,86 - Bulk
DEMONB5CP1V1 制造商:OMRON AUTOMATION AND SAFETY 功能描述:NB5 CP1 PLC SALES DEMO
DEMO-NB5CP1V1 制造商:OMRON AUTOMATION AND SAFETY 功能描述:NB5 CP1 PLC SALES DEMO 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:NB5 CP1 PLC Sales Demo
DEMO-NB7CP1V1 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:NB7 CP1 PLC Sales Demo
DEMO-NJ51-KIT-ECT-0-V1 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:NJ5 Demo UGKIT, TJG5ML2 to NJE
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*