参数资料
| 型号： | MPR031EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 11/33页 |
| 文件大小： | 0K |
| 描述： | IC CTLR TOUCH SENSOR 8-DFN |
| 产品培训模块： | MPR03x - Low-Power Proximity Sensors |
| 特色产品： | MPR03x Proximity Capacitive Touch Sensor Controllers |
| 标准包装： | 1 |
| 类型： | 电容性 |
| 触摸面板接口： | 2 线 |
| 评估套件： | 可供 |
| 数据接口： | I²C，串行 |
| 数据速率/采样率 (SPS，BPS)： | 400k |
| 电源电压： | 1.71 V ~ 2.75 V |
| 电流 - 电源： | 43µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-UFDFN |
| 供应商设备封装： | 8-QFN-D（2x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 2808 (CN2011-ZH PDF) |
| 配用： | KITMPR03XEVM-ND - KIT EVAL FOR MPR03X DEMOMPR031-ND - BOARD DEMO FOR MPR031 CTLR |
| 其它名称： | MPR031EPR2DKR |
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MPR03X
Sensors
Freescale Semiconductor
19
7.4
Configuration
From the implementation above, there are two elements that can be configured to yield a wide range of capacitance readings
ranging from 0.455 pF to 2874.39 pF. The two configurable components are the electrode charge current and the electrode
charge time.
The electrode charge current can be configured to equal a range of values between 1
A and 63 A. This value is set in the CDC
in the AFE Configuration register (Section 7.4.1).
The electrode charge time can be configured to equal a range of values between 500 ns and 32
S. This value is set in the CDT
in the Filter Configuration Register (Section 8.3.1).
7.4.1
The AFE (Analog Front End) Configuration Register is used to set both the Charge/Discharge Current and the number of samples
taken in the lowest level filter. The address of the AFE Configuration Register is 0x41.
Figure 25. AFE Configuration Register
7
6
543210
R
FFI
CDC
W
Reset:
0
010000
= Unimplemented
Table 12. AFE Configuration Register Field Descriptions
Field
Description
7:6
FFI
First Filter Iterations – The first filter iterations field selects the number of samples
taken as input to the first level of filtering.
00 Encoding 0 – Sets samples taken to 6
01 Encoding 1 – Sets samples taken to 10
10 Encoding 2 – Sets samples taken to 18
11 Encoding 3 – Sets samples taken to 34
5:0
CDC
Charge Discharge Current – The Charge Discharge Current field selects the
supply current to be used when charging and discharging an electrode.
000000 Encoding 0 – Disables Electrode Charging
000001 Encoding 1 – Sets the current to 1uA
~
111111 Encoding 63 – Sets the current to 63uA
相关PDF资料 |
PDF描述 |
|---|---|
| VE-BT0-MW-F4 | CONVERTER MOD DC/DC 5V 100W |
| D38999/20FF28SN | CONN RCPT 28POS WALL MNT W/SCKT |
| VE-BT0-MW-F2 | CONVERTER MOD DC/DC 5V 100W |
| MS3106A36-1S | CONN PLUG 22POS STRAIGHT W/SCKT |
| MS27473E14B37P | CONN PLUG 37POS STRAIGHT W/PINS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPR031EPR2 | 制造商:Freescale Semiconductor 功能描述:IC CAPACITIVE TOUCH SENSOR FN-8 |
| MPR031EPR2-CUT TAPE | 制造商:Freescale 功能描述:MPR031 Series 2.75 V 8 ? Proximity Capacitive Touch Sensor Controller - UDFN-8 |
| MPR032 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR032EP | 制造商:Freescale Semiconductor 功能描述:CAPACITIVE TOUCH SENSOR 8-PIN UDFN BULK - Bulk |
| MPR032EPR2 | 功能描述:电容触摸传感器 DFN TOUCH PAD RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
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