IQS128EV04 S Azoteq, IQS128EV04 S Datasheet

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... Personal Media Players White goods and appliances Advantages Allows for sensor drift in periods of activation and non-activation Improved digital filtering to reduce external noise -40°C to 85°C Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series ® - ProxSense ® ...

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... ATI ................................................................................................................................................................... 19 8.2 S ATI ........................................................................................................................................ 20 ENSITIVITY DUE TO 8.3 ATI P .................................................................................................................................................. 20 ROCEDURE 9 DYCAL SPECIFIC SETTINGS .................................................................................................................................21 9.1 REL_T : R T ELEASE HRESHOLD THR 9.2 DYCAL_OUTPUT (IQS128L) ............................................................................................................................. 21 Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series ............................................................................................................................ 14 ............................................................................................................................. 15 (IQS128L) ............................................................................................................ 21 IQS128 & IQS128LP Datasheet v2.4 Page April 2013 ...

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... EVICE ACKAGING ONVENTION 11 ...................................................................................................................................... 30 RDERING NFORMATION 12 ERRATA .............................................................................................................................................................31 13 DATASHEET REVISION HISTORY .........................................................................................................................32 14 CONTACT INFORMATION ..................................................................................................................................33 Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series ..................................................................................................................... 22 25°C) ..................................................................................................... 22 EASURED AT 25°C) ...................................................................................................... 23 ........................................................................................................................... 29 IQS128 & IQS128LP Datasheet v2.4 Page April 2013 ...

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... DYCAL™ (Dynamic Calibration) special form of hysteresis that can track slow varying environmental change even while the sensor touch state. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series Functionality DYCAL ...

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... VDDHI OUT VSS VREG GND Note: A 100pF capacitor can be places in parallel with the existing capacitors between VDDHI and GND as well as between VREG and GND for added RF immunity. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series CX OUT 6 ...

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... CTRL/ND OUT VSS VREG GND Note: A 100pF capacitor can be places in parallel with the existing capacitors between VDDHI and GND as well as between VREG and GND for added RF immunity. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series VDDHI 1 8 ...

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... Active High bit 0 EXT_CTRL: Selects external control option on OUT 0 = Charge Halt 1 = Halt LTA filter 1 Only applicable for OUT pin. If CTRL is configured as output push-pull output. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series 3.1 Configuring Devices Azoteq offers a Configuration Tool (CTxxx) and (USBProg ...

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... Input for external control from MCU (used with 1 = Output Mode Operation Table 3-3: IQS128 Bit 7 6 Name ~ ~ Default ~ ~ bit 7-4 bit 2-1 bit 0 Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series Bank 1 User Selectable Options HALT1 ...

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... Active High bit 0 EXT_CTRL: Selects external control option on OUT 0 = Charge Halt 1 = Halt LTA filter 2 Only applicable for OUT pin. If CTRL is configured as output push-pull output. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series Bank 0 User Selectable Options ...

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... Unimplemented Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series Bank 1 User Selectable Options ...

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... CHARGE Cx pin 1 Figure 4.1 Charge cycles as can be see LP_CHARGE Cx pin 1 Figure 4.2 Charge cycles as charged in LP modes (IQS128L only) Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series requirements. With CS larger than +/-1865 on the the gain of the system may become too high ...

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... HIGH 1 OUT 0 IQS128: REL_T = 75% THR IQS128LP: REL_T = 75% or 87.5% THR Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® IQ Switch ProxSense Series touchpad is released • LTA will track CS as long below P • CS goes above LTA Recallibrate LTA • ...

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... If the CS were to exceed the LTA by a release threshold (REL_T ) the touch detection will THR stop and the OUT pin will return to its original state. Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series . THR IQS128 & ...

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... LTA will be reset to the CS, forcing the OUT pin to its original state. T PULSE 1 CTRL 0 Figure 6.2 Master Output signal on CTRL to force a Reseed Condition Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved ® ® ProxSense Series 6.1.1 Charge Halt If CTRL is sampled high for longer than ...

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... The capacitor between VDDHI and VSS as well as between VREG and VSS, must be placed as close as possible to the IC. A 100 pF capacitor should be placed in parallel with the 1uF capacitor Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series between VDDHI and VSS. Another ...

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... Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series 6.6 CTRL_DIRECTION The CTRL pin can be configured as an input (default output. If configured as input, the IC has an internal pull-up resistor enabled ...

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... There exist 4 LP modes. The LP modes will decrease the sampling frequency of CS which will reduce the power consumption of the device. However, this will also increase the response time of the device. Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense ...

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... Start Stop – Start Figure 7.1 Debug: 1-wire streaming Debug Mode The following table defines the bit definitions for the IQS128/IQS128L devices during Streaming Mode. Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series 1. Communications initiated by a START bit ...

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... Automatic Tuning Implementation). ATI makes adjustments through external reference capacitors unnecessary required by most other solutions) to obtain optimum performance. Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series 8.1 ATI The IQS128/IQS128L implements an ATI algorithm. parameters electrode’s connection to the device. ...

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... The ATI function aims to maintain a constant CS, regardless of the capacitance of the sense electrode (within the maximum range of the device). The effects of ATI on the application are the following: Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Automatic adjustment of the device ...

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... DYCAL_OUTPUT (IQS128L) The IQS128L can be configured to activate the OUT pin with either a proximity event or a touch event. Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Choosing a proximity event, will make the activation of OUT more sensitive. ...

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... D/S V DDHI BOD D/S 3 Maximum voltage applied for OTP programming and not intended for operation. 4 CTRL = Input and CTRL = HIGH (Charge halt). Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series , OUT, CTRL, Cx) SS IQS128/IQS128L General Operating Conditions Conditions ...

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... Minimum Detection and Release times = Detection = MIN LP_CHARGE Release = MIN LP_CHARGE Maximum time = Dependent on speed at which user approaches electrode Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Table 10.3 OUT Characteristics (mA) Conditions ...

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... IQS128. Prox debounce is 6 and I/O is toggled after next charge transfer cycle, requiring 7 charge cycles for the minimum time of a decision to be made. 8 IQS128 only available in Boost Power Mode. Minimum Detection and Release times = Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ...

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... TSOT23 Dimension Drawing not on Scale Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Figure 11.1 TSOT23-6 Packaging Table 11.1 TSOT23-6 Dimensions Min Max 2.80 mm typ 1.60 mm typ 2.90 mm typ 0.40 mm 0.95 mm typ 1.00mm 0.05 mm 0.40 mm 4° ...

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... IQ Switch 11.1.2 TSOT23-6 Tape 11.1.3 DFN8 (2x3) NOTE: Both Package length and width do not include mold flash and burr Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Figure 11.2 IQS128Tape Specification IQS128 & IQS128L Datasheet v2 C=0.250x45° ...

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... IQ Switch 11.1.4 DFN8 Tape 10 Drawing not on Scale Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series Figure 11.3 DFN8 (2x3) Packaging Table 11.2 DFN8(2x3) Dimensions Dimension Min (mm) A 2.0±0.1 B 3.0±0.1 C 0.70 C1 0~0.050 C2 0.203TYP D1 1.60TYP D2 1.50TYP E 0.250TYP E1 0.500TYP F 0.400TYP Figure 11.4 DFNTape Specification IQS128 & ...

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... Components such as thin fine-pitch devices and ball grid arrays could be damaged Table 11.3 Package TSOT23-6 DFN8 (2x3) Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series during SMT reflow when moisture trapped inside the component expands. The expansion of trapped moisture can ...

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... IQ Switch 11.2 Device Packaging Convention 11.2.1 IQS128 11.2.1.1 Top IC NAME 11.2.1.2 Bottom 11.2.2 IQS128L 11.2.2.1 Top IC NAME BATCH Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series 128XX zzzzz CONFIGURATION IQS128 zzzXX CONFIGURATION IQS128 & IQS128L Datasheet v2.4 BATCH Page April 2013 ...

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... Only full reels can be ordered and orders will be subject to a MOQ (Minimum Order Quantity full reel. Contact the official distributor for sample quantities. A list of the distributors can be found under the “Distributors” section of www.azoteq.com. For large orders, Azoteq can provide pre-configured devices. ...

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... It must be noted that the previous packaging for the IQS128L is still being phased out and for this reason IC’s can still be found with the below packaging convention and device markings. Packaging Convention: IC NAME Device Markings: Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series ...

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... Made Revision History a section on its own - Added Tape Specification - Added Errata to accommodate previous packaging Version 2.5 - Fixed TSOT23-6 Package dimension information Copyright © Azoteq (Pty) Ltd 2012 All Rights Reserved ® ® ProxSense Series IQS128 & IQS128L Datasheet v2.4 Page April 2013 ...

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... IQ Switch®, ProxSense®, LightSense™, AirButton® and the trademarks of Azoteq. The information in this Datasheet is believed to be accurate at the time of publication. Azoteq assumes no liability arising from the use of the information or the product. The applications mentioned herein are used solely for the purpose of illustration and Azoteq makes no warranty ...