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参数资料
| 型号： | KITMPR083EVM |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 12/35页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL 8POSITION ROTARY TOUCH |
| 标准包装： | 1 |
| 传感器类型： | 触摸，电容式 |
| 传感范围： | 8 个按钮/键 |
| 接口： | I²C |
| 电源电压： | 1.8 V ~ 3.6 V |
| 嵌入式： | 是，其它 |
| 已供物品： | 板，缆线，CD |
| 已用 IC / 零件： | MPR083 |
| 相关产品： | 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 |
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MPR083
Sensors
2
Freescale Semiconductor
1
Device Overview
1.1
Introduction
Freescale Semiconductor’s MPR083 proximity capacitive touch sensor controller is one of a family of products designed to detect
the state of capacitive touch pads. The MPR083 offers designers a cost-efficient alternative to mechanical rotary switches for
control panel applications.
The MPR083 uses an I2C interface to communicate with the host which configures the operation and an interrupt to advise the
host of status changes. The MPR083 includes a piezo sounder drive which provides audible feedback to simulate mechanical
key clicks. The MPR08X family has several implementations to use in your design including control panels and switch
replacements. The MPR083 controls rotary and linear sliders. Other members of the MPR08X family are well suited for other
application interface situations such as individual touch pads or rotary/touch pad combinations.
Freescale offers a broad portfolio of proximity sensors for products ranging from appliance control panels to portable electronics.
Target markets include consumer, appliance, industrial, medical and computer peripherals.
1.1.1
Devices in the MPR08X series
The MPR08X series of Proximity Capacitive Touch Sensor Controllers allows for a wide range of applications and
implementations. Each of the products in Table 1 perform a different application specific task and are optimized for this specific
functionality.
1.1.2
Internal Block Diagram
The MPR083 consists of primary functional blocks; Interrupt Controller, I2C Serial Interface, Sounder Controller, Configuration
and Status registers, Rotary Position Decoder, Magnitude Comparator and Recalibrator, EMI Burst/Noise Rejection Filter,
Capacitance Measurement Analog Front End. Each of these blocks will be described in detail in their respective sections.
Figure 2. Functional Block Diagram
Table 1. MPR08X family Overview
Product
Bus
Sounder
Rotary/Slider
Touch Pad Array
MPR083
I2C
Yes
8-positions
—
MPR084
I2C
Yes
—
8 keys
CONFIGURA
TION
AND
ST
ATUS
REGISTERS
MAGNITUDE
COMP
ARA
TOR
AND
RECALIBRA
TOR
EMI
BURST/NOISE
REJECT
FIL
TER
CAP
ACIT
ANCE
MEASUREMENT
A.F
.E.
8
ROTARY
POSITION
ROTARY
POSITION
IRQ
SDA
SCL
I2C
SERIAL
INTERFACE
INTERRUPT
CONTROLLER
MASKS
SET
RATE
ATTN
AD0
SOUNDER
DRIVER
CONTROLLER
8 POSITION ROTARY
1
4
3
2
8
7
6
5
CLEAR
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