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AD7147 Datasheet(PDF) 39 Page - Analog Devices

Part # AD7147
Description  CapTouch??Programmable Controller for Single-Electrode Capacitance Sensors
PDF  68 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7147 Datasheet(HTML) 39 Page - Analog Devices

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AD7147
Rev. 0 | Page 39 of 68
TYPICAL APPLICATION CIRCUITS
SCROLL
WHEEL
PLANE AROUND SENSORS CONNECTED TO ACSHIELD
BUTTON
BUTTON
BUTTON
BUTTON
1
CIN6
2
CIN7
3
CIN8
4
CIN9
5
CIN10
6
CIN11
GPIO
18
INT
17
CS
16
SCLK
15
SDI
14
SDO
13
AD7147
INT
SS
SCK
MOSI
MISO
VHOST
HOST WITH SPI
INTERFACE
VCC 2.7V TO 3.6V
1.8V
1μF TO 10μF
(OPTIONAL)
0.1μF
10nF
VDRIVE
2.2kΩ
SENSOR PCB
Figure 59. Typical Application Circuit with SPI Interface
1
CIN6
2
CIN7
3
CIN8
4
CIN9
5
CIN10
6
CIN11
GPIO
18
INT
17
ADD1
16
SCLK
15
ADD0
14
SDA
13
AD7147-1
INT
SCK
SDO
HOST WITH I2C
INTERFACE
2.2kΩ
2.2kΩ
2.2kΩ
BUTTON
BUTTON
BUTTON
2-WAY
SWITCH
VDRIVE
VDRIVE
VDRIVE
VCC 2.7V TO 3.6V
1μF TO 10μF
(OPTIONAL)
0.1μF
10nF
Figure 60. Typical Application Circuit with I2C Interface



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