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PDF ( 数据手册 , 数据表 ) IQS156

零件编号 IQS156
描述 Minimalist Capacitive Sensor
制造商 Azoteq
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IQS156 数据手册, 描述, 功能
IQ Switch®
ProxSense® Series
IQS156 Datasheet
IQ Switch® - ProxSense® Series
Minimalist Capacitive Sensor with Compensation for Sensitivity Reducing Objects
Unparalleled Features
Sub 6uA current consumption
Automatic tuning for optimal operation in various environments
The IQS156 ProxSense® IC is a fully integrated six channel capacitive contact and proximity
sensor with market leading sensitivity and automatic tuning to the sense electrodes. The IQS156
provides a minimalist implementation requiring as few as 2 external components. The device is
ready for use in a large range of applications while programming options allow customisation for
specialized applications.
Main Features
6 Channel input device
I2C data output
ATI: Automatic tuning to optimum sensitivity
Supply Voltage 3V to 5.5V
8 Power Modes (6µA min)
Internal voltage regulator and reference capacitor
Large proximity detection range
Automatic drift compensation
IQS143 MSOP10
Representations only, not
actual markings
Development and Programming tools available (VisualProxSense and USBProg)
Small outline MSOP10
Applications
White goods and appliances
Office equipment, toys, sanitary ware
Flame proof, hazardous environment Human Interface Devices
Proximity detection that enables backlighting activation (Azoteq Patented)
Wake-up from standby applications
Replacement for electromechanical switches
GUI trigger on proximity detection.
Available options
TA MSOP-10
-40°C to 85°C
IQS156







IQS156 pdf, 数据表
IQ Switch®
ProxSense® Series
C4h-FDh
64
R
R/W
Device Settings
W
9.5.1 Device Information
00H
Product Number
R/W
Bit 7 6 5 4 3 2 1 0
11 H
R
01H Version Number
Bit 7 6 5 4 3 2
10 H
9.5.2 Device Specific Data
10H Prox Status Bits
Bit 7
6
5
4
32
System System System NP
Low
use use use Segment Power
Active Active
ATI
Busy
9.5.3 Proximity Status Bytes
The proximity status of all the channels on the device are shown here.
1
1
RF
Noise
R/W
0
R
R/W
0
Zoom R
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS156 Datasheet
Revision 1.7
Page 8 of 24
October 2012







IQS156 equivalent, schematic
ND Level
ND On
Force Halt
Redo ATI
Reseed
IQ Switch®
ProxSense® Series
Selects the noise detect level
„0‟: 25mV
„1‟: 50mV
Enables the noise detection.
„0‟: Disabled
„1‟: Enabled
Forces the Long Term Average to stop being calculated
„0‟: LTA updates normally
„1‟: LTA is halted
Forces the ATI routine to run when a „1‟ is written into this bit
position. ATI OFF in D4 should not be set.
All channels are reseeded when a „1‟ is written into this bit
position. The LTA‟s are set to 8 counts above the counts.
D6H
Bit 7
Ack
Reset
ProxSense Module Settings 2 (PROX_SETTINGS2)
654321
WDT
Off
Sync
On
Halt1 Halt0
LP2
LP1
R/W
0
LP0 R/W
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS156 Datasheet
Revision 1.7
Page 16 of 24
October 2012










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