IQ Switch® ProxSense® Series
Contents
1. ske CH1 CH2 49 CH3 CH4 ele CHS CH6 exe CH7 CH8 feXe SHLDOUT Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 3 of 7 All Rights Reserved Revision 1 0 2 June 2011 IQ Switch 4 A 7 ProxSense Series A O eq 3 Operation 1 Ensure Keypad is connected to EV02 controller PCB 2 Standalone Mode Connect V and V to supply voltage 3 0V 5 5V or flip switch to ON position if optional battery kit is supplied Note Remove battery before connecting to PSU Debug Mode Module can be connected to VisualProxSense on the SPI header to evaluate the real time working of the IQS technology see Appnote for further details AZD006 VisualProxSense Overview verx xx pdf DNP Do Not Populate VDD VDDHI VDDHI VDD SPI Outputs Direct Outputs RFC a 2 R35 5 7 Ci 2 C3 a s x eee 33NF COG 33nF C OG 33n F COG rs lr34 R36 R39 ZC_IN V Vv GND GND IQS221 Reference Design with optional synchronisation input and Driven Shield output Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 4 of 7 All Rights Reserved Revision 1 0 2 June 2011 5 IQ Switch 4 Q ProxSense S2. used solely for the purpose of illustration and Azoteq makes no warranty or representation that such applications will be suitable without further modification nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise Azoteq products are not authorized for use as critical components in life support devices or systems No licenses to patents are granted implicitly or otherwise under any intellectual property rights Azoteg reserves the right to alter its products without prior notification For the most up to date information please contact ProxSenseSupport azoteq com or refer to the website www azoteg com Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 7 of 7 All Rights Reserved Revision 1 0 2 June 2011
3. when EVO2 is used as stand alone kit The keypad is easy removable from the 1QS221 controller PCB This makes the controller PCB a quick design tool when prototyping with the IQS221 9 channel capacitive sensing controller IC The module is assembled with a SO 32 packaged device and SO 32 samples are also included These samples can be used for quick prototyping with any design The IQS221 IC are also packaged in the very compact QFN5x5 32 package Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 2 of 7 All Rights Reserved Revision 1 0 2 June 2011 lj a A Q Or sa aiden 4 Az O teq 2 Motherboard The figure below shows the top view of the EV kit mother board Its features include Battery powered or External power supply powered Modular design Connect the supplied keypad into the main board or wire the main board into a prototype for rapid prototyping Back grid as Shield LEDs indicate proximity AND contact to the buttons 7 touch LEDs Can be used in one of 2 modes Direct mode using onboard LEDs Battery powered and output on LED s Data Streaming Mode Visualization and control from a PC GUI requires Azoteq Configuration Tool CT or Azoteq Data Streamer DS Buzzer Test pads for the driven shield zero cross and analog measurement of key parameters OTP bits can be programmed on the kit requiresC T xxx 2 A SUIT WW NOU UW JO CHO
4. Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 5 of 7 All Rights Reserved Revision 1 0 2 June 2011 E IQ Switch Q S Series GZ Az O te Q SPI For programming and data streaming PROBE_ 1QS126A01 Connector to keypad K1 CHO CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CX1 CX2 CX3 CX4 CX5 CX6 Pull ups to disable Channel OO N O 01 GyNo Optional Buzzer SPI Header Keypad Header Resistors to disable channels Note e Additional hardware not necessary for general designs with 1QS221 o Reverse voltage protection diode 3 3Vpc regulator User can input up to 18Vpc with regulator External selection resistors for sensitivity prototyping purposes Buzzer and related control hardware Synchronising ZC input Active driven shield output o Option to disable individual channels with resistors e R 9 1 populated for additional ESD protection e Sensitivity fine tuning o Increase CS capacitors will increase module sensitivity o Decrease CS capacitor will decrease module sensitivity e Default configuration OTP bits o DIR A Key 7 will not resp
5. E IQ Switch Q E Series 4 Az O te Q 1Q5221 Evaluation Kit 1QS221EV02 AZP075 PCB Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 1 of 7 All Rights Reserved Revision 1 0 2 June 2011 l T A Q os 4 Az oteq Evaluation Kit User Manual IQ Switch ProxSense Series IQS221 EV Kit User Manual Table of Content 1 INTRODUCTION jsiissssccssscassvccsivaceversssecesteressetesiasssnstscuresseddsnadseseessveusssaassdacsscdasseansbdesevadeteudssedesneaessisesiaceivedeserts 2 2 MOTHERBOARD ii csssciasscesssccsiscasiecsssecdescaasicissicasisudssendescsdsicessinsidudsscadsinaaenetasssessincsssuasieaanseaasicassiadeniudsisatesesds 3 3 OPERATION E A A O A O O I 4 4 PROGRAMMING amp STREAMING cnsiiccscicsstiescsccttineddccavesiiedadcacsssiis cccnndssseisedddusestesdsscncibessedadencsdssussecdewsiensededeass 7 1 Introduction This user manual describes the 1QS221 evaluation kit The EV kit is made in two parts consisting of a mother board and keypad It is developed to facilitate application engineers and development engineers in evaluating the 1QS221 9 channel sensor with proximity and touch detection LEDs are used to display the output of the device The design of the EV kit allows for flexibility allowing the user to use the 1QS221 in direct mode streaming mode to a PC Evaluation Kit Contents 1 x AZP075 Controller PCB 1 x Keypad PCB 2 x CR2016 Battery optional Optional CR2016 batteries included
6. eries 4 Az O te Optional Syncronisation Input The IQS221 can be syncronised with an external MCU or High Voltage 50Hz AC through the populating the correct resistors to the ZC pin Driven Shield Output One channel of the IQS221 CX8 for this design can be shielded if it is needed to locate the proximity sensor in a remote location D1 SW 1POLE SLIDE BAT54C S1 R51 R52 R53 R54 z R55 V A V o XD GND GND Optional LEDs to indicate active outputs Ch 7 0 Ch B Ch 7 0 Ch 8 Prox Threshold TO 5 Prox Threshold TO 7 6 Touch Threshold TO 1 0 Touch Threshold TO 4 2 Prox Level selection default Prox Level selection default LL 1 32 LL 1 32 LS LL 6 a LH 2 16 LH 2 16 H 2 LH 12 HH 2 HL 1 16 lt HL 1 16 lt Prox Level selection alternative Prox Level selection alternative HH 3 16 HH 3 16 L 19e LL 16 HL 1 lt H disable LH 32 HH disable VDDHI VDDHI VDDHI VDDHI VDDHI VDDHI VDDHI x a R32 fle R29 R31 R28 R26 R27 TO1 MOSI TOO TO4 SCK TO2 SOMI TO5 SS TO7 SCL TO6 SDAI oO x ai E R23 R24 i r R20 i a V V V GND GND GND GND GND GND GND T lt 7 gt T lt Q 7 gt T lt 8 gt T lt 8 gt P lt 7 gt P lt 8 gt P lt 8 gt Optional External selections for prototyping
7. ond with a LED as there are only 8 TO LEDs populated o Normal power mode o LED will switch off if proximity occur for 15sec or more and no touches are detected environmental filter see datasheet for additional options o RF filter enabled o Shield disabled e User can select custom options for 1QS221 OTP bits with PartNumberGenerator which can be found on www azoteq com under downloads section e Keypad header can be used to connect controller PCB to custom product e Connecting the IQS221 EV02 module to a good ground connection will significantly increase proximity detection distance O O O O 0 0 Copyright Azoteq Pty Ltd 2010 Evaluation Kit User Manual Page 6 of 7 All Rights Reserved Revision 1 0 2 June 2011 E IQ Switch Q proxSense Series 4 Az O te 4 Programming amp Streaming The EV Kit is by default in standalone mode However for some applications it is useful to evaluate the raw data of the 1QS221 Connect the EV kit to a PC through a CT200 Streaming can now be done through VisualProxSense Connect CT200 to PC use 10 pin ribbon cable to EV Kit IQ Switch ProxSense LightSense AirButton and the IQ Logo are trademarks of Azoteq The information appearing in this Application Note is believed to be accurate at the time of publication However Azoteq assumes no responsibility arising from the use of the information The applications mentioned herein are
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