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參數(shù)資料
| 型號： | MPR032EPR2 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 11/33頁 |
| 文件大小： | 0K |
| 描述： | IC CTLR TOUCH SENSOR 8-DFN |
| 產(chǎn)品培訓模塊： | MPR03x - Low-Power Proximity Sensors |
| 特色產(chǎn)品： | MPR03x Proximity Capacitive Touch Sensor Controllers |
| 標準包裝： | 1 |
| 類型： | 電容性 |
| 觸摸面板接口： | 2 線 |
| 評估套件： | 可供 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 數(shù)據(jù)速率/采樣率 (SPS，BPS)： | 400k |
| 電源電壓： | 1.71 V ~ 2.75 V |
| 電流 - 電源： | 43µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-UFDFN |
| 供應商設備封裝： | 8-QFN-D（2x2） |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 2808 (CN2011-ZH PDF) |
| 其它名稱： | MPR032EPR2DKR |
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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
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相關代理商/技術參數(shù) |
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|---|---|
| MPR03X | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR03X_09 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR03XEJ | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR03XEP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR03XQ | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
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