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iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 1 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 iqs 680 datasheet combination sensor with dual channel capacitive proximity/touch, passive infrared radial sensor and metal detection capabilities the IQS680 proxfusion ? ic is a multifunctional capacitance, pyroelectric infrared radial (pir) & inductance sensor designed for applications such as domestic energy efficient lighting applications with movement detection . the IQS680 is an ultra - low power solution designed for short or long term activations through any of the sensing channels. the iqs 6 80 operates standalone or via the i 2 c protocol and custom configur ations are stored in an on - chip eeprom . features ? unique combination of sensors: o capacitive s ensing o inductive sensing o pir sensing ? capacitive sensing o 2pf to 200pf external capacitive load capability o fully adjustable sensing options o mutual - or self - capacitance. ? inductive sensing o distinguish between ferrous and non - ferrous metals o only external sense coil required (pcb trace) ? pir s ensing: o dsp algorithm for long range movement detection. o automatic drift compensation. ? multiple integrated ui s ? automatic tuning implementation (ati) C performance enhancement (10bit ati) ? eeprom included on - chip for calibration data and settings. ? minimal external components ? standard i 2 c interface (polling with sub 1ms clock stretching) ? optional rdy indication for event mode operation ? low power consumption: o 300ua o (100 hz response ) o 10ua o ( 10 hz response) ? supply voltage: 1.75v to 3.6v ? low profile dfn(3x3) C 10 pin package figure 1: under cabinet ui (pir and prox) figure 2: in cabinet u i (inductive sensor) applications ? under cabinet lighting (ucl) ? standard pir sensor cost reduction ? smart lights ? night lights ? battery powered pir sensors solutions ? movement detection available packages t a dfn10 - 40c to 85c IQS680 dfn10 representations only, not actual markings
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 2 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 table of contents 1 introduction ................................ ................................ ................................ ................................ .................. 5 1.1 p rox f usion ? ................................ ................................ ................................ ................................ ...................... 5 1.2 f eatures ................................ ................................ ................................ ................................ ............................. 5 1.3 o peration ................................ ................................ ................................ ................................ ........................... 5 2 hardware ................................ ................................ ................................ ................................ ........................ 6 2.1 p ackaging and p in - out ................................ ................................ ................................ ................................ ........ 6 t able 2.1: p in - out descriptions ................................ ................................ ................................ ................................ ........ 6 2.2 r eference schematic ................................ ................................ ................................ ................................ ........... 7 2.3 s ensor channel combin ations ................................ ................................ ................................ ............................. 7 t able 2.2: s ensor - channel allocation ................................ ................................ ................................ ............................. 7 2.4 h ardware configuratio n ................................ ................................ ................................ ................................ .... 8 t able 2.3: hardware description per ui ................................ ................................ ................................ ............................ 8 3 user interface ................................ ................................ ................................ ................................ ................ 9 3.1 m ovement detection ui ................................ ................................ ................................ ................................ .... 10 3.2 m etal detection ui ................................ ................................ ................................ ................................ ........... 10 3.3 e vent output response s ................................ ................................ ................................ ................................ .... 11 4 measuring capacitanc e using the charge transfer method ................................ ............................... 12 5 user configurable se ttings (ucs) ................................ ................................ ................................ ............... 13 5.1 s ampling frequency ................................ ................................ ................................ ................................ .......... 13 t able 5.1: s ample frequency opti ons ................................ ................................ ................................ .............................. 13 5.2 i nput options ................................ ................................ ................................ ................................ .................... 13 t able 5.2: u ser i nput options ................................ ................................ ................................ ................................ ......... 13 5.3 o utput format options ................................ ................................ ................................ ................................ ..... 13 t able 5.3: o utput formats ................................ ................................ ................................ ................................ ............. 13 5.4 o u tput modes ................................ ................................ ................................ ................................ ................... 13 t able 5.4: o utput modes ................................ ................................ ................................ ................................ ................ 13 5.5 a uto - off ................................ ................................ ................................ ................................ .......................... 14 5.6 p roximity thresh old ................................ ................................ ................................ ................................ ......... 14 5.7 t ouch threshold ................................ ................................ ................................ ................................ .............. 14 5.8 pir event threshold ................................ ................................ ................................ ................................ .......... 14 5.9 pir deviation threshold ................................ ................................ ................................ ................................ .... 14 t able 5.3: pir deviation thresholds ................................ ................................ ................................ ................................ 15 5.10 n umber of pir events ................................ ................................ ................................ ................................ ....... 15 5.11 pir event t imeout ................................ ................................ ................................ ................................ ............. 15 5.12 m inimum pir s tabilization t ime ................................ ................................ ................................ ........................ 15 6 auto tuning implementation (ati) ................................ ................................ ................................ ............ 16 6.1 t he ati base ................................ ................................ ................................ ................................ ...................... 16 t able 6.1: otp b ank 2 bits 7 - 6 ................................ ................................ ................................ ................................ ......... 16 6.2 t he ati target ................................ ................................ ................................ ................................ .................. 16 t able 6.2: otp b ank 2 bits 5 - 4 ................................ ................................ ................................ ................................ ......... 16 6.3 s ensitivity due to ati ................................ ................................ ................................ ................................ ........ 17 7 electrical character istics ................................ ................................ ................................ .......................... 18 7.1 a bsolute m aximum s pecifications ................................ ................................ ................................ ..................... 18 a bsolute maximum spec ification ................................ ................................ ................................ ................................ .... 18 7.2 p ower o n - reset /b rown out ................................ ................................ ................................ ............................. 18 p ower on - reset and brown out detection specificat ions ................................ ................................ ................................ 18 7.3 d igital input / output trigger level s ................................ ................................ ................................ ................... 18 d igital input / output trigger level specifications ................................ ................................ ................................ ............ 18 7.4 c urrent consumptions ................................ ................................ ................................ ................................ ..... 19 c apacitive sensing cu rrent consumption ................................ ................................ ................................ ........................ 19 h all - effect current consu mption ................................ ................................ ................................ ................................ .. 19 7.5 c apacitive loading li mits ................................ ................................ ................................ ................................ ... 20 7.6 h all - effect measurement l imits ................................ ................................ ................................ ........................ 20 8 package information ................................ ................................ ................................ ................................ .. 21
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 3 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 8.1 dfn10 package and footprin t specifications ................................ ................................ ................................ ..... 21 8.2 d evice m arking and ordering information ................................ ................................ ................................ ....... 22 8.3 t ape s pecification ................................ ................................ ................................ ................................ ............. 23 8.4 msl l evel ................................ ................................ ................................ ................................ ......................... 24 9 datasheet revisions ................................ ................................ ................................ ................................ ..... 25 9.1 r evision history ................................ ................................ ................................ ................................ ................ 25 9.2 e rrata ................................ ................................ ................................ ................................ .............................. 25 appendix a contact information ................................ ............................... error! bookmark not defined.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 4 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 list of abbreviations ati automatic tuning implementation bod brown out detection fov field of view gnd ground i 2 c inter - integrated circuit ici internal capacitor implementation lta long term average msl moisture sensitivity level otp one - time programmable pir pyroelectric infrared radial por power on reset pwm pulse width modulation thr threshold to time - out ui user interface list of symbols c ati ati c ompensation cs pir pir sensor current samples cs ss steady - s tate cs pir cs t touch current samples c s internal reference capacitor c x sense electrode d thr pir current samples deviation threshold ? s sampling frequency m ati ati m ultiplier p thr proximity event threshold r x receiving electrode t thr touch event threshold t x transmission electrode v dd supply voltage v ss ground
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 5 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 1 introduction 1.1 proxfusion ? the proxfusion ? sensor series provide all of the proven proxsense ? engine capabilities with additional sensors types. a combined sensor solution is available within a single p latform. all specification as provided , except where specifically noted , are subject to the following conditions : ? temperature: - 40 c to +85 c ? supply voltage (v dd ): 1.8v to 3.6v 1.2 features the iqs 680 is a capacitive sensing controller designed for both integrated and standalone pyroelectric i nfrared radial (pir) sensing applications. the device offers highly dynamic and adjustable pir sensing range , depending on the lens chosen (0 C 12m), as well as a h igh sensitivity proximity ( prox ) and conta ct (touch) detection through a dedicated sensor line ( c x ). the device includes a dvanced digital signal processing (dsp) capabilities for on - chip pir signal analysis . this, c ombined with th e automatic tuning implementation (ati) algorithm which calibrates the device to the sense electrode, yields a high ly stable , high sensitivity movement detection controller. further features of the device include an internal voltage regulator and internal capacitor implementation (ici) to reduce external components. the analogue circuitry is also capable of power on reset (por) detection as well as brown out detection (bod). furthermore, the device has a n inductive sensing mode that allows for the detection of non - ferret metals in close proximity to the sensor. the device can also be configur ed by means of an on - chip eeprom , such as choosing the device output format , event durations, sensitivity and storing calibration data . the output options includes a n open - drain or push - pull, active high or low output with pulse width modulation ( pwm ) as well as the standard i 2 c interface . 1.3 operation the device has been designed to be used in standalone battery operated automated lighting applications with o n /off touch c ontrol capabilities. furthermore , standard i 2 c interface allows the device to be used in an integrated environment. the capacitive sensing line of the device can reliably o bserv e the measured results at various levels, which enables it to distinguish betwe en a p rox or t ouch event. this allows for a variety of user interface (ui) responses. the ati algorithm allows for the adap tation to a wide range of sensing pad sizes .
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 6 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 2 hardware 2.1 packaging and pin - out the IQS680 is available in the dfn10 packaging. the pin - outs and functionality is given below. figure 2 . 1 : iqs 680 pin - out ( dfn10 package ; device markings may differ ) table 2 . 1 : pin - out descriptions pin name type function 1 sda i 2 c i 2 c data bus 2 event digital out active output on movement and when pir is block ed 2 rdy i 2 c i 2 c ready indication bus 3 vdd hi supply input supply: 1 . 75 v C 3 . 6 v 4 vreg regulator output requires external capacitor s 5 output digital out active high/ low open - drain/push - pull output with pwm 6 rx 0 analogue c harge r eceive electrode for sensors 7 rx 1 analogue charge receive electrode for sensors 7 tx 0 analogue c harge transfer electrode for sensors 8 scl i 2 c i 2 c clock bus 9 vdd hi supply input supply: 1 . 75 v C 3 . 6 v 10 vss voltage reference ground connection sda event/ rdy vddhi vreg output rx0 rx1/tx0 scl vss vddhi
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 7 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 2.2 reference schematic figure 2 . 2 : iqs68 0 reference schematic 2.3 sensor channel combinations the table below summarizes the iqs6 8 0s sensor and channel associations. table 2 . 2 : sensor - channel allocation sensor / ui type ch0 ch1 ch2 capacitive movement detection o touch ? pir inductive metal detection o touch rejection ? inductive key: ? - optional implementation o - fixed use for ui
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 8 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 2.4 hardware configuration in the table below are multiple options of configuring sensing (rx) and transmitting (tx) electrodes to rea lize different implementations . table 2 . 3 : hardware description per ui self capacitive configuration pir only pir and button inductive coil
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 9 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 3 user interface although standard i 2 c interface is available, the iqs 680 is designed as a standalone device with a single logic output. t here are three user i nterfaces (uis) on the device, namely movement detection , touch detection and metal detection. the first make use of a pir sensor to detect movemen t over a distance and the second senses touch by means of a capacitive sensing electrode (c x ) . the latter operates with a single copper coil to detect non - ferrite metals in close proximity . f low - diagram s of the three ui s are given in figure 3 . 1 below. note that when the output is in pwm mode, it is not considered to be in an active state. more detai l is provided on this in the subsections that follow . figure 3 . 1 : ui flow - diagra m s
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 10 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 3.1 movement detection ui 3.1.1 pir sensor the pir sensor functions as the movement over a distance interface . typical pir sensor s ha ve a sensing range of up to 12m, with a radial fov of 120 . care should be taken when designing the housing of the pir sensor as well as the choice of lens , as this plays a pivotal role in sensitivity , range and fov of the pir sensor. given that the output i s in an in activate state , t he IQS680 will switch the output into pwm mode if any movement is det ected within the pirs fov. the output will exit pwm mode after a predefined time period, upon which the output will return to an idle state. however, if movem ent is detected whilst the output is already in pwm mode , the deactivation timers will be reset. this implies that the device will only return to an idle state once no movement was detected of the given time period. as long as the output is active, any mov ement detection will be ignored. 3.1.2 touch button there are 2 trigger levels to which the capacitive electrode will respond. the first of these is a prox event. this event should trigger once the user comes within a small distance to the c x ( in the order of 5 c m) . this trigger level will not result in an active output, but instead the device will enter zoom mode. in this mode the device will sample c x at 60hz rather than the selected frequency (? s ) chosen by the designer. this mode switching feature increases th e responsiveness of the touch functionality of the device whilst maintaining low power consumption during idle operation. the second trigger level is a touch event. this is t riggered when the user physically touches the device surface directly above the c x pad. in the case that the output is inactive during the touch event, the output will be activated. if the touch remains for longer than 500ms the output will start to dim. if a pwm duty of 0% is reached, the duty will start to increase. this process will continue until the touch is released. if the output is active when a touch event is registered, the output will be deactivated. 3.2 metal detection ui 3.2.1 inductive coil with a coil connected between the c x0 and c x1 pins, the IQS680 passes a current though the co il and detects any deviations in the current. the IQS680 interpret these fluctuations in current as the presence or ab s ence of metals, such as copper, in the e - field generated by the current passed through the coil. if the IQS680 detect metal in close prox imity to the coil, the output is deactivated and inversely, if no metal is detected the output is activated. a second optional capacity measurement is also done on the coil to detect and compensate for any capacitive effect that may be exerted on the coil. this allows the IQS680 to refrain from responding to any touches made on the coil.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 11 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 3.3 event output responses the fo llowing figure depicts the responses of the device for all the possible user inputs, given all the possible states of the output. figure 3 . 2 : state diagram of the IQS680 output
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 12 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 4 measuring capacitance using the charge transfer method the charge transfer method of capacitive sensing is employed on the iq s680 . the charge transfer principle is thoroughly described in the application note: azd004 - azoteq capacitive sensing. a charge cycle is used to take a measurement of the capacitance of the c x relativ e to ground. it consists of a series of pulses charging c x and discharging c x to c s , at the charge transfer frequency : ? ct = 1 t ct = 1 mhz the number of the pulses required to reach a trip voltage on the reference capacitor is referred to as the count value (cs) which is the instantaneous capacitive measurement. the cs is used to determine if either a physical contact or proximity event occurred, based on the change in cs detected. the typical values of cs, without a touch or proximity condition range b etween 512 and 1280 counts, although other counts can be used based on the application requirements. the iqs 680 schedules a charge cycle every t s seconds to ensure regular samples for processing of results. the duration of the charge cycle is defined as t c and varies according to the counts required to reach the trip voltage. following the charge cycles other activities such as data streaming is completed (if in streaming mode), before the next charge cycle is initiated. please note: attaching a probe to th e cx pin will increase the capacitance of the sense plate and therefore cs. this may have an immediate influence on the counts value (decrease t c ) and cause a proximity or touch event. after a period of t halt seconds has passed since the probe was attached , the system will adjust to accommodate for this change. if the total load on c x , with the probe attached , is still lower than the maximum cs the system will continue to function normally after t halt seconds with the probe attached. figure 4 . 1 : charge cycles as can be seen on c x .
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 13 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 5 user configurable settings (ucs) this section describes the user configurable options of the iqs 680 in detail. user options are selected though the azoteq gui, which is used to write it in the devices eeprom . 5.1 sampling frequency the frequency at which the device samples the sensors directly relates to its power consumption , where a higher sample rate requires a more power . the designer may select 1 of 4 possible sample frequencies as shown in the table below. table 5 . 1 : s ample frequency options freq: device s ampling frequency select 10 hz 50 hz 20 hz 100 hz 5.2 input options the IQS680 includes 3 input modes, which defines what sensors are attached to the device. these options are given in the table 5 . 2 : table 5 . 2 . table 5 . 2 : user input options input: input type select pir sensor only pir and capacitive sensors coil (metal detect) sensor 5.3 output format options the IQS680 includes 4 output formats . these options, given in table 5 . 3 , allow the designer to operate the load in the best configuration for the given application. table 5 . 3 : output formats out put f : out put format select active high & p ush - pull active low & p ush - pull active high & open - drain active low & open - drain 5.4 output modes the IQS680 includes 3 output modes. these options, given in table 5 . 4 table 5 . 3 , allow the designer to operate the load in the best configuration for the given application. table 5 . 4 : output modes out put t : out put mode select on/off varied pwm pulse in t he on/off output mode, the IQS680 will always activate the output on any event with a 100% pwm duty . in the varied pwm mode, the IQS680 will cycle through a 0 C 100% pwm duty when a prolonged touch event is detected (longer than 1s), given that the touch event has activated the load. the pulse mode will only generate a short pulse (10us - 250us, sel ectable) for any event.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 14 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 5.5 auto - off by default the devices output will remain in an active state perpetually, given that the output is in a load driven mode. however, i f the auto - off feature is selected, the output will be deactivated after a period of 1 hour. 5.6 proximity threshold the p roximity t hr eshold (p thr ) defines the minimum required diverges of the touch cs (cs t ) below the long term average ( lta ) for more than 4 consecutive cycles to trigger a proximity event . t he iqs 680 proximity threshold options r ange is 0 - 2 55, where typical values are approximately 8, enabling the designer to obtain the desired sensitivity and noise immunity for the touch electrode . 5.7 touch t hreshold similar t o the proximity threshold, the t ouch t hr eshold (t thr ) defines the minimum required diverges of the cs t below the lta for more than 2 consecutive cycles to trigger a touch event. the following equation illustrates how it is determined whether a touch event has occurred: ? ? ? ? ? ? 256 > ? ? ? ? . the iqs 680 proximity threshold options range is 0 - 2 55 . the touch threshold is selected by the designer to obtain the desired touch sensitivity. 5.8 pir event threshold unlike the touch events, which are based on the absolute cs t measurement, pir events are based on the differential measurement of the pir sensor cs (cs pir ). thus, a pir event threshold (e thr ) defines the minimum required rate of diverges of cs pir from its steady - state cs (cs ss ) to trigger a pir event . the IQS680 pir events threshol d options range is 0 - 2 55 , which is chosen to obtain the desired sensitivity and noise immunity for the pir sensor . 5.9 pir deviation threshold the pir sensor is susceptible to ambient noise such as fluctuation in temperature over the course of 24hrs. these c hanges directly impact the sensitivity of the sensor. in order to maintain a non - variant sensitivity, the IQS680 will monitor the difference of the cs ss value from the selected ati target value and compare it to the pir deviation threshold (d thr ) . if ? ? ? ? ? ? ? ? ? ? ? ? ? d thr , ( 5 . 1 ) t he device will recalibrate the pir sensor. there are 3 possible values for d thr , given in the table below.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 15 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 table 5 . 5 : pir deviation thresholds d thr : pir cs deviation thr select 1/16 most conservative 1/12 1/8 least conservative 5.10 number of pir events in order to improve the IQS680s resilience against false triggers (important for security applications) , the device can be setup to prevent the output from activating until a given number of pir event has occurred in short succession. the number of event may range from 1 to 4. 5.11 pir e vent timeout if a pir event occurred, given that the output is in a load driven mode, the de vices output will go in an active or pwm state for a selected period. this period can be selected in steps of 4 seconds, ranging from 4 to 1024 seconds. should a consecutive pir event triggered before the selected period has elapsed, the internal timer will be reset and the output will remain active. this implies that the pir event timeout defines the time the output will remain active after the last pir event has occurred. 5.12 m inimum pir stabilization time due to the unknown nature of the state in which a pir at the moment the power is applied to the device, it is necessary for the IQS680 to suppress all pir events at start - up. the IQS680 automatically monitors the pir sensor and continue to suppress all pir event until the sensor has stabilized. this can t ake up to 30 seconds. the minimum pir stabilization time define the period in seconds (0 - 255) which the pir must be stable before the IQS680 will stop suppressing pir events.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 16 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 6 auto tuning implementa tion (ati) ati is a sophisticated technology implemented in the latest generation proxsense? devices that optimises the performance of the sensor in a wide range of applications and environmental conditions (refer to application note azd0027 - auto tuning implementation). a ti makes adjustments through external reference capacitors unnecessary (as required by most other solutions) to obtain optimum performance. the device automatically adjusts the ati parameters to optimise the sensing electrodes connection to the device. the ati algorithm execute whenever the device starts - up and or when the counts are not within a predetermined range. ati adjusts internal circuitry according to two parameters, the ati multiplier (m ati ) and the ati compensation (c ati ) . 6.1 the ati base the m ati can be viewed as a course adjustment of the cs, used to achieve the ati base value. the ati base value is important, as this determines the sensitivity of the device at a given ati target. the sensitivity can be defined as: ? ? ? ? ? ? ? ? ? ? ? = ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? . the designer may chose separate ati base for the 2 sensors of the device, i.e., the pir and electrode, from the options given in table 6 . 1 . table 6 . 1 : error! reference source not found. bits 7 - 6 pir base : pir base value t base : touch base value 100 default 75 most sensitive 150 200 least sensitive 6.2 the ati target the c ati is a fine adjustment used to reach the ati target value. the ati target gives the necessary resolution for measuring small changes in the measured signal. the designer may define distinct ati targets for the 2 sensors of the device, i.e., the pir and electrode , from the options given in table 6 . 2 . table 6 . 2 : error! reference sou rce not found. bits 5 - 4 pir ati : pir ati target t ati : touch ati target 1024 default 512 least resolution 768 1280 most resolution
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 17 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 6.3 sensitivity due to ati the adjustment of the ati parameters will result in variations in the count and sensitivity. sensitivity can be observed as the change in count as the result of a fixed change in sensed capacitance. the ati parameters have been chosen to provide significan t overlap. it may therefore be possible to select various combinations of ati multiplier and ati compensation settings to obtain the same count. the sensitivity of the various options may however be different for the same count.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 18 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 7 electrical characteristi cs 7.1 absolute maximum specifications the following absolute maximum parameters are specified for the device: exceeding these maximum specifications may cause damage to the device. absolute maximum specification parameter 3.3v solution a bsolute maximum 5 v solution absolute maximum operating temperature - 40c to 85c supply voltage (vddhi C gnd) 3.6v 5.5 v maximum pin voltage vddhi + 0.5v (may not exceed vddhi max) maximum continuous current (for specific pins) 10ma minimum pin voltage gnd - 0.5v minimum power - on slope 100v/s esd protection 4 kv (human body model) ? 7.2 power on - reset/brown out power on - reset and brown out detection specifications description conditions parameter min max unit power on reset v ddhi slope 100v/s @25c por tbc tbc v brown out detect v ddhi slope 100v/s @25c bod tbc tbc v 7.3 digital input/output trigger levels digital input/output trigger level specifications description conditions parameter min typical max unit all digital inputs vdd = 1.8v input low level voltage tbc tbc tbc v all digital inputs vdd = 1.8v input high level voltage tbc tbc tbc v all digital inputs vdd = 3.3v input low level voltage tbc tbc tbc v all digital inputs vdd = 3.3v input high level voltage tbc tbc tbc v
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 19 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 7.4 current consumptions 7.4.1 capacitive sensing alone capacitive sensing current consumption solution power mode conditions report rate min typical max unit 3.3v np mode vdd = 1.8v tbc tbc tbc ma 3.3v np mode vdd = 3.3v tbc tbc tbc ma 3.3v lp mode vdd = 1.8v tbc tbc tbc ma 3.3v lp mode vdd = 3.3v tbc tbc tbc ma 3.3v ulp mode vdd = 1.8v tbc tbc tbc ma 3.3v ulp mode vdd = 3.3v tbc tbc tbc ma 3.3v halt mode vdd = 1.8v tbc tbc tbc ma 3.3v halt mode vdd = 3.3v tbc tbc tbc ma 5v np mode vdd = 2.5v tbc tbc tbc ma 5v np mode vdd = 5.5v tbc tbc tbc ma 5v lp mode vdd = 2.5v tbc tbc tbc ma 5v lp mode vdd = 5.5v tbc tbc tbc ma 5v ulp mode vdd = 2.5v tbc tbc tbc ma 5v ulp mode vdd = 5.5v tbc tbc tbc ma 5v halt mode vdd = 2.5v tbc tbc tbc ma 5v halt mode vdd = 5.5v tbc tbc tbc ma 7.4.2 hall - effect sensing alone hall - effect current consumption solution power mode conditions report rate min typical max unit 3.3v np mode vdd = 1.8v tbc tbc tbc ma 3.3v np mode vdd = 3.3v tbc tbc tbc ma 3.3v lp mode vdd = 1.8v tbc tbc tbc ma 3.3v lp mode vdd = 3.3v tbc tbc tbc ma 3.3v ulp mode vdd = 1.8v tbc tbc tbc ma 3.3v ulp mode vdd = 3.3v tbc tbc tbc ma 3.3v halt mode vdd = 1.8v tbc tbc tbc ma 3.3v halt mode vdd = 3.3v tbc tbc tbc ma 5v np mode vdd = 2.5 v tbc tbc tbc ma 5v np mode vdd = 5.5 v tbc tbc tbc ma 5v lp mode vdd = 2.5 v tbc tbc tbc ma 5v lp mode vdd = 5.5 v tbc tbc tbc ma 5v ulp mode vdd = 2.5 v tbc tbc tbc ma 5v ulp mode vdd = 5.5 v tbc tbc tbc ma 5v halt mode vdd = 2.5 v tbc tbc tbc ma 5v halt mode vdd = 5.5 v tbc tbc tbc ma
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 20 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 7.5 capacitive loading limits to be completed. 7.6 hall - effect measurement limits to be completed.
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 21 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 8 package information 8.1 dfn10 package and footprint specifications table 8 . 1 : dfn - 10 package dimensions (bottom) dimension [mm] a 3 0.1 b 0.5 c 0.25 d n/a f 3 0.1 l 0.4 p 2.4 q 1.65 table 8 . 2 : d fn - 10 package dimensions (side ) dimension [mm] g 0.05 h 0.65 i 0.7 - 0.8 table 8 . 3 : dfn - 10 landing dimensions dimension [mm] a 2.4 b 1.65 c 0.8 d 0.5 e 0.3 f 3.2 figure 8 . 1 : dfn - 10 package dimensions (side) figure 8 . 2 : dfn - 10 package dimensions (bottom). note that the saddle needs to be connected to gnd on the pcb. figure 8 . 3 : dfn - 10 landing dimensions a d b l q f p c
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 22 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 8.2 device marking and ordering information not available to date
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 23 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 8.3 tape specification
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 24 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 8.4 msl level moisture sensitivity level (msl) relates to the packaging and handling precautions for some semiconductors. the msl is an electronic standard for the time period in which a moisture sensitive device can be exposed to ambient room conditions (approximately 30c/85%rh see j - std033c f or more info) before reflow occur. package level (duration) dfn10 msl 1 (unlimited at 30 c/85% rh) reflow profile peak temperature < 260 c for < 30 seconds
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 25 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 9 datasheet revisions 9.1 revision history v0.1 C preliminary structure v1.0 C preliminary datasheet v1.01 C corrected contact information 9.2 errata
iq switch ? proxfusion tm series copyright ? azoteq 2016 iqs620 preliminary pre - production datasheet revision 1.0 1 page 26 of 26 all rights reserved information in this datasheet is based on products in the design, validation or qualification phase of development. the performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice. august 2016 1 contact information usa asia south africa physical address 6507 jester blvd bldg 5, suite 510g austin tx 78750 usa rm 2125 , glittery city shennan rd futian district shenzhen, 518033 china 109 main street paarl 7646 south africa postal address 6507 jester blvd bldg 5, suite 510g austin tx 78750 usa rm 2125 , glittery city shennan rd futian district shenzhen, 518033 china po box 3534 paarl 7620 south africa tel +1 512 538 1995 +86 755 8303 5294 ext 808 +27 21 863 0033 fax +1 512 672 8442 +27 21 863 1512 email info@azoteq.com info@azoteq.com info@azoteq.com please visit www.azoteq.com for a list of distributors and worldwide representation . the following patents relate to the device or usage of the device: us 6,249,089; us 6,952,084; us 6,984,900; us 7,084,526; us 7,084,531; us 8,395,395; us 8,531,120; us 8,659,306; us 8,823,273; us 9,209,803; us 9,360,510; ep 2,351,220; ep 2,559,164; ep 2,656,189; hk 1,156,120; hk 1,157,080; sa 2001/2151; sa 2006/05363; sa 2014/01541; sa 2015/023634 iq switch ? , swipeswitch?, proxsense ? , lightsense?, airbutton tm , proxfusion?, crystal driver? and the logo are t rademarks of azoteq. the information in this datasheet is believed to be accurate at the time of publication. azoteq uses reasonable effort to ma intain the information up - to - date and accurate, but does not warrant the accuracy, completeness or reliability of the information contained herein. all content and information are provided on an as is basis only, without any represen tations or warranties, express or implied, of any kind, including representations about the suitability of these products or infor mation for any purpose. values in the datasheet is subject to change without notice, please ensure to always use the latest version of this document. application specific operating conditions should be taken into account du ring design and verified before mass production. azoteq disclaims all warranties and conditions with regard to these products and information, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non - infringem ent of any third party intellectual property rights. azoteq assumes no liability for any damages or injury arising from any u se of the information or the product or caused by, without limitation, failure of performance, error, omission, interruption, defec t, delay in operation or transmission, even if azoteq has been advised of the possibility of such damages. the applications mentioned herein are used solely for the purpose of illustration and azoteq makes no warranty or representation that such applicatio ns 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 suppor t devices or systems. no licenses to patents are granted, implicitly, express or implied, by estoppel or otherwise, under any intellectual property rights. in the event that any of the abovementioned limitations or exclusions does not apply, it is agreed that azoteqs total liability for all losses, damages and causes of action (in contract, tort (including without limitation, negligence) or otherwise) will not exceed the amount already paid by the customer for the products. azoteq reserves the righ t to a lter its products, to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and information, its products, programs and services at any time or to move or discontinue any contents, products, programs or ser vices without prior notification. for the most up - to - date information and binding terms and conditions please refer to www.azoteq.com www.azoteq.com/ip info@azoteq.com

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