Azoteq ProxSense Series Manual

Azoteq ProxSense Series Manual Manual pdf 1 page image

IQ Switch®ProxSense® SeriesCopyright © Azoteq (Pty) Ltd 2017. IQS211AEV02 Quick start guide Page 1 of 2All Rights Reserved. Revision 1.2 April 2017IQS211AEV02 Quick start guideSingle Channel Capacitive Proximity/Touch Controller with movement detectionThe IQS211A ProxSense® IC is a self-capacitance controller designed for applications wherean awake/activate on proximity/touch function is required. The IQS211A offers ultra-low poweroptions and uses movement detection for applications that require long term handling duringproximity/touch. The device can be configured via OTP (One Time Programmable) bits.1 Reference design and pin layoutFigure 1.1 Pin Layout Figure 1.2 IQS211AEV02Table 1.1 Pin-out descriptionIQS211A in TSOT23-6Pin Name Type Function1 IO1 / SCL / 1WIRE Digital Input / Output Multifunction IO1 / SCL / 1WIRE (I2C Debug Clocksignal / 1WIRE communication line)2 VSS Signal GND3 IO2 / SDA Digital Input / Output Multifunction IO2 / SDA (I2C Debug Data output)4 VREG Regulator output Requires external capacitor5 VDDHI Supply Input Supply:1.8V – 3.3V6 Cx Sense electrode Connect to conductive area intended for sensorFigure 1.3 IQS211A Reference design2 Ultra-low power configurationFor IQS211A 08000000 TSR devices (OTP Bank4: bit3 = 1 for VREG damping) theIQS211AEV02 main board can be configured to connect IO2 to R3 = 680Ω grounding resistor.This resistance is mandatory for the ultra-low power operational mode.211OUTVSSMOV_OUT &RST/WAKE_INCxVDDHIVREG123654211MOV_OUTVSSCONFIG_INCxVDDHIVREG123654211OUT & MOV_PWMVSSCxVDDHI1265211SCLVSSSDACxVDDHIVREG123654211OUT & MOV_PWMVSSCxVDDHI1265000 -I2C001 -Movement/Touch010 - Movement/ Prox011 - Movement/Input100 - 1Wire + Mov101 - 1Wire Short+Rdy110 - I2C with reset indication000 -I2C110 -I2C with reset indication001 -Movement/Touch (OUT)010 - Movement/ Prox (OUT) 011 – Movement/Input001 -Movement/Touch (OUT)010 - Movement/ Prox (OUT)211OUTVSSCONFIG_INCxVDDHIVREG123654xxx – OUT / Inputxxx – OUT&MOV / Rst&Wake xxx – OUT&MOV / InputIQS211AIO1 / SCL / 1WIREVSSIO2 / SDACxVDDHIVREG123654GNDC11uFGNDC2100pFC4100pFC31uFGNDVDDHIGNDVREGCXR1470RIO1/SCL/DATAIO2/SDA/EVENTVDDHIDS0DS1IO2/SDA/EVENTIO1/SCL/DATAGREENBLUEIO2/SDA/EVENT 3IO1/SCL/1WIRE 1VREG 4CX 6GND2VDDHI5U1IQS211AC510pFGNDR4470RR5470RVDDHIR74k7VDDHIR64k7IO1/SCL/DATA IO2/SDA/EVENTR240R

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