sx8654 Semtech Corporation, sx8654 Datasheet
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sx8654 Summary of contents
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... ADVANCED COMMUNICATIONS & SENSING G D ENERAL ESCRIPTION The SX8654, SX8655 and SX8656 belong to a family of high performance haptics enabled 4/5-wire resistive touch screen controller with proximity detection, optimized for hand held applications such as mobile phones, portable music players, game machines, point-of-sales terminal consumer and industrial applications ...
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... Analog-to-Digital Conversion (ADC) 5.3 Digital Processing 5.3.1 Overview 5.3.2 PROXRAW Update 5.3.3 PROXUSEFUL Update 5.3.4 PROXAVG Update th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Table of Contents ............................................................................................................ 4 ............................................................................................... 9 ............................................................................... 12 ..................................................................................................... 13 (SX8654/56) ....................................................................... 23 2 Haptics Enabled 4/5-Wire ...
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... ADVANCED COMMUNICATIONS & SENSING 5.3.5 PROXDIFF Update 5.3.6 PROXSTAT Update 5.4 Host Operation 5.4.1 General Description 5.4.2 Proximity Sensing vs Touch Operations 5.4.3 Minimum Scan Period (i.e. PROXSCANPERIOD (SX8654/55) .......................................................................................... 36 APTICS NTERFACE 6.1 Introduction 6.2 ERM Load 6.2.1 Introduction 6.2.2 PWM Mode 6.2.3 I2C Mode 6.3 LRA Load 6.3.1 Introduction 6.3.2 PWM Mode 6.3.3 I2C Mode 6.4 Short-Circuit Protection ...
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... Figure 1 – Marking Information – QFN(left) – CSP(right) 1.1.2 SX8655 Figure 2 – Marking Information – QFN(left) – CSP(right) 1.1.3 SX8656 Figure 3 – Marking Information – QFN(left) – CSP(right) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 4 Haptics Enabled 4/5-Wire www.semtech.com ...
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... CSP Package Note that haptics pins (MVDD, MGND, MIN, MOUTN, MOUTP) are not used on SX8656. (Cf. § 1.3) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 4 – Pin Diagram – QFN Figure 5 – Pin Diagram - CSP 5 Haptics Enabled 4/5-Wire ...
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... Internal Regulator Output (must be connected to an external capacitor; see § 13) SX8654/55 : Haptics Motor Power Supply MVDD P SX8656 : Not used, connect to VDD. SX8654/55 : Haptics Motor Ground (must be electrically connected to GND) MGND P SX8656 : Not used, connect to GND. SX8654/55 : Haptics Motor Positive Drive MOUTP AO SX8656 : Not used, do not connect ...
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... ADVANCED COMMUNICATIONS & SENSING 1.4 Block Diagram th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 6 – SX8654 Block Diagram Figure 7 – SX8655 Block Diagram 7 Haptics Enabled 4/5-Wire www.semtech.com ...
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... ADVANCED COMMUNICATIONS & SENSING th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 8 – SX8656 Block Diagram 8 Haptics Enabled 4/5-Wire www.semtech.com ...
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... T = +25° C, VDD=VDDM=3.3V. A Symbol Description Supply VDD Main supply voltage IDD Main supply current th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Conditions X+/BR, Y+/TR, X-/TL, Y-/BL, VDD, MVDD Other pins X+/BR, Y+/TR, X-/TL, Y-/BL, VDD, MVDD Other pins X+/BR, Y+/TR, X-/TL, Y-/BL, VDD, MVDD Other pins X+/BR, Y+/TR, X-/TL, Y-/BL, VDD, MVDD ...
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... RBIAS Biasing resistance Proximity Sensing Interface External capacitance to be CDC compensated t Scan period (reaction time) PROX th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Conditions Min PROX (PENDET/TRG mode, pen up, TOUCHRATE=80cps, PROX ON, SCANPERIOD=200ms, - HIGHIM=ON, SENSITIVITY=Max, FREQ=150kHz, BOOST=OFF, HAPT OFF) ...
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... FOSCL Low frequency internal oscillator FOSCH High frequency internal oscillator (1) Guaranteed by design. (2) PWM mode can introduce an additional error of 2.5% of full scale. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Conditions Cf. § 10 Cf. § 10 Cf. § ...
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... SCANPERIOD(m s) MIDD_OFF vs MVDD vs TEMP 5.00E-08 4.50E-08 4.00E-08 3.50E-08 3.00E-08 2.50E-08 2.00E-08 1.50E-08 1.00E-08 5.00E-09 0.00E+00 2.3 2.5 2.7 2.9 MVDD(V) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 25° 85° C -40° 2.3 2.4 2.5 2.6 2.7 3.1 3.3 3.5 0.0002 0.00019 ...
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... The fifth wire (WIPER) is used for sensing the top sheet voltage. When a pressure is applied on the top sheet, a connection with the lower sheet is established. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 9 – Touchscreen Interface Overview Figure 10 – 4-wire Touchscreen 13 Haptics Enabled 4/5-Wire www ...
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... The X and Y positions output by the ADC correspond to the formulas below: 4095 corresponds to the max output value of the ADC (12 bits => 2 For example, a touch in the center of the screen will output (Xpos, Ypos) = ~(2048, 2048) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 11 – 5-wire Touchscreen R2 Y pos = ...
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... The X and Y total sheet resistance (Rxtot = R1+R2, Rytot = R3+R4) are known from the touch screen supplier proportional to the Y coordinate and its value is given by the total Y plate resistance Rytot multiplied by the fraction of the Y position over the full coordinate range. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing R2 Y pos = 4095 ...
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... When a touch occurs, a current path is created bringing X+ to the level defined by the resistive divider determined by RPNDT and the sum of R1, RT and R4. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Rxtot = R1 ...
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... The parameter FILT is used to select the filter order Nfilt. The noise rejection will be improved with a high order to the detriment of power consumption. Each channel can be sampled times and then processed to get a single consolidated coordinate. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing and digital comparator continue to PNDT and the sum of R1, RT and RW. PNDT ...
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... The parameter SETDLY sets the settling time between the consecutive conversions of the same channel. Figure 18 – POWDLY and SETDLY (FILT=2) In most applications, SETDLY can be set to minimum (0.5us). However, in some particular applications where an accuracy of 1LSB is required SETDLY may need to be increased. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing ∑ c ...
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... CONVSTAT NIRQ (RegIrqMsk[3]=1) Figure 20 – Manual Mode – CONVERT Command (CHAN = SEQ = [X;Y]; PROXSCANPERIOD = 0) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Actions Select and bias CHAN Wait for the programmed settling time (POWDLY) Convert CHAN Select and bias CHAN Table 6 – ...
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... PENTRG mode the host must set TOUCHRATE > 0 and then send PENTRG command. To quit PENTRG mode and stop the touchscreen interface the host must enter MAN mode. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing CONVERT(Y) READ CHANNEL Y ...
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... TOUCHRATE tick NIRQ I2C Read Channel Tconv Trate Idle Pen Detection th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Pen Release Tcom = Touch Conversion Figure 24 – Correct TOUCHRATE setting 21 Haptics Enabled 4/5-Wire Tconv+Tcom < Trate => Actual rate = TOUCHRATE www.semtech.com ...
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... Table 7 – Maximum Throughputs Examples chan = chan filt chan 22 SX8654/SX8655/SX8656 Haptics Enabled 4/5-Wire Trate < Tconv+Tcom < n.Trate => Actual rate = TOUCHRATE SETD LY + 21N + 1 Tos c filt CR ECR SR [kcps] [kcps] [ksps] 6.6 13.2 6.6 7.4 11 ...
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... This is illustrated in figure below th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing (SX8654/56) face, etc Analog Front-End Processing (AFE) SX8654/56 Figure 27 – Proximity Sensing Sequencing 23 Haptics Enabled 4/5-Wire PROXSTAT Digital www.semtech.com ...
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... C phenomenon is illustrated in the figure below. Figure 29 – Proximity Effect on Electrical Field and Sensor Capacitance th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Overlay PCB dielectric Sensor Ground created by its electrical field’ ...
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... From the discussions above we can conclude that the most robust and efficient design will be the one that minimizes C value and variations while improving C Env 5.2.2 AFE Block Diagram Figure 30 – Analog Front-End Block Diagram th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing A ε ε User d ε ...
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... There are five possible compensation sources which are illustrated in the figure below. When set any of these sources, PROXCOMPSTAT will only be reset once the compensation is completed. Figure 32 – Compensation Request Sources th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Env User to which C is subtracted. ...
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... Digital processing sequencing is illustrated in figure below. At every scan period wake-up (defined by PROXSCANPERIOD), the block updates sequentially PROXRAW, PROXUSEFUL, PROXAVG, PROXDIFF and PROXSTAT before going back to Idle mode. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing variations. This is performed Env 27 Haptics Enabled 4/5-Wire ...
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... PROXRAW update consists mainly in starting the AFE and waiting for the new PROXRAW value to be ready compensation was pending it is performed first. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 34 – Digital Processing Sequencing 28 Haptics Enabled 4/5-Wire ...
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... Hz max) and slow environment changes. F(PROXRAW ; PROXUSEFUL[n-1] ; PROXRAWFILT PROXRAWFILT).PROXRAW + PROXRAWFILT.PROXUSEFUL[n-1] th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 35 – ProxRaw Update Figure 36 – PROXUSEFUL Update 29 Haptics Enabled 4/5-Wire ...
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... PROXAVGNEGFILT. Typically we have PROXAVGPOSFILT > PROXAVGNEGFILT to filter out (abnormal) negative events faster. To prevent PROXAVG to be “corrupted” by user activity (should only reflect environmental changes freezes when proximity is detected. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Env Figure 37 – ProxAvg vs Proximity Event 30 Haptics Enabled 4/5-Wire . ...
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... ADVANCED COMMUNICATIONS & SENSING F(PROXUSEFUL ; PROXAVG[n-1] ; PROXAVGxxxFILT PROXAVGxxxFILT).PROXUSEFUL + PROXAVGxxxFILT.PROXAVG[n-1] xxx = POS or NEG th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 38 – ProxAvg Update 31 Haptics Enabled 4/5-Wire www.semtech.com ...
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... PROXTHRESH and finally updating PROXSTAT accordingly. When PROXSTAT=1, PROXAVG is frozen to prevent the user proximity signal averaging and hence absorbed into C th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing ) and extract only the user related variations i.e. C Env Figure 39 – ProxDiff Update ...
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... In MAN mode, a CONVERT command (if not preceded by a SELECT command) will perform a proximity sensing operation before the touchscreen operation, whatever the pen status. Hence please note that if the th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing User out of range User out of range 33 Haptics Enabled 4/5-Wire www ...
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... NIRQ I2C Read RegIrqSrc Idle Touch Conversion Pen Detection Proximity Sensing Figure 45 – Pen Detect Mode (RegIrqMsk[6:2] = 00011 ; PROXSCANPERIOD = 001 ie 1/TOUCHRATE) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing READ CHANNEL Y POWDLY PROX Y READ CHANNEL PROX Pen Release ...
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... Please note that compensation lasts about ~16 times longer than a normal proximity sensing operation. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Pen Release 35 Haptics Enabled 4/5-Wire www.semtech.com ...
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... An ERM motor with an off-balance load to create a vibration. Speed and direction are controlled by the applied voltage. The ERM load is selected when HAPTTYPEEN = 10. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 47 – Haptics Interface Overview 36 Haptics Enabled 4/5-Wire ...
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... Q factors so that the drive frequency must match the resonant frequency within a few Hz to get optimum amplitude. LRA load is selected when HAPTTYPEEN = 01. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 48 – ERM Drive Signal Example VMOUT = 0V 37 Haptics Enabled 4/5-Wire ...
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... Under a short-circuit event (HAPTSHORTSTAT=1) the haptics block will stop operation (MOUTN & MOUTP grounded). When the short-circuit is removed the haptics operations will resume normally. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 49 – LRA Drive Signal Example OR VMOUT_Envelope = 0V ...
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... If the user was running some manual operation (SELECT, CONVERT), the corresponding command will have to be re-issued. The haptics operations will resume directly. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 50 – Temperature Sensor Overview (Op. Mode ...
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... Each time NIRQ falling edge occurs, read RegIrqSrc to know which “time-critical” event occurred (+ read channel data if relevant addition, RegStat can be read anytime to get the whole picture including also what is considered to be “non time-critical” information. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 40 Haptics Enabled 4/5-Wire www.semtech.com ...
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... By the host (RegAux0-1) to monitor any RegStat and/or RegIrqSrc bits in real time without having to use NIRQ or perform I2C polling. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 41 Haptics Enabled 4/5-Wire www.semtech.com ...
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... In case of ESD event, the chip can reset to protect its internal circuitry. NIRQ will go low during the reset phase and chip can be accessed normally again after NIRQ rising edge. Additionally bit RESETSTAT will be set (cleared when reading RegStat). th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing VPOR ...
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... This sequence will be repeated until the host terminates the transfer with the stop condition [P]. The register address increments automatically when successive data bytes (WD1...WDn) are supplied by the host. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Address Description First I2C address 0x48 (1001000) 0x49 (1001001) ...
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... The chip will synchronize these events by the use of clock stretching if that is required. The stretching occurs directly after the last received command bit (see figure above). th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 53 – I2C Read Register Figure 54 – I2C Write Command 44 Haptics Enabled 4/5-Wire www ...
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... The channel data is sent with the following order Z1, Z2 coded as described in figure below Typical applications require only X and Y coordinates, thus only 4 bytes of data will be read in this case. 0 CHAN(2:0) th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Function X Chan(2:0) Select and bias channel. X Chan(2:0) Convert channel ...
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... For example if the chip converts X and Y and the host tries to read and Z2. a conversion has been done while the screen wasn’t touched , i.e. pen up (not detected). th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 46 Haptics Enabled 4/5-Wire www.semtech.com ...
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... Reserved bits should be left to their default value unless otherwise specified. 3) Proximity related registers/bits do not apply to SX8655. 4) Haptics related registers/bits do not apply to SX8656. th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Touchscreen Interface Haptics Interface and Temperature Sensor Proximity Sensing Interface ...
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... Reserved 001 4 TSTYPE 0 3:2 RPNDT 00 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Defines the touch coordinates acquisition rate: 0000 : OFF. 0001 : 10 cps 0010 : 20 cps 0011 : 40 cps 0100 : 60 cps 0101 : 80 cps 0110 : 100 cps 0111 : 200 cps ...
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... Default 7 HAPTMODE 0 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Defines the channel filtering algorithm OFF (Nfilt = sample averaging (Nfilt = sample averaging (Nfilt = sample averaging after removal of extreme values (Nfilt = 7) Table 13 : RegTouch1 (Addr 0x01) Description Defines the bias settling time for each channel’ ...
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... TEMPWRNIRQEDG 0 1 TEMPALRMIRQEDG 0 0 TEMPALWAYSON 0 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Defines the haptics load OFF. Haptics block disabled LRA 10 : ERM 11 : Reserved Defines MIN prescaler value 128 1 : 256 Defines the haptics output gain: 0000 : 1 0001 : ~1.17 0010 : ~1 ...
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... Bits Variable Default 7 PROXRAWFILTSEL 0 6 PROXIRQSEL 0 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Defines the haptics output polarity and level in I2C mode i.e. AmplitudeCode (Cf. § 0xFF : +127 (Max positive) … 0x81 : +1 0x80 : +0 0x00 : -0 0x01 : -1 … 0x7F : -127 (Max negative) HAPTAMP[7] gives the sign of AmplitudeCode (1=> ...
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... Default 7:0 PROXSTUCK 0x00 Bits Variable 7:0 PROXAVGPOSTHRESH th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Defines the proximity detection hysteresis : 00 : OFF 128 11 : 512 Defines the proximity scan period : 0000 : OFF. Proximity sensing disabled 0001 : 1 / TOUCHRATE (Cf. RegTouch0) 0010 : 2 / TOUCHRATE ...
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... PROXAVGNEGFILT 000 1 PROXHIGHIM 0 0 Reserved 0 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Defines the average positive debounce (for compensation) : 000 : OFF 001 : 2 samples 010 : 4 samples 011 : 8 samples 100 : 16 samples 101 : 32 samples 110 : 64 samples 111 : 128 samples ...
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... Variable Default 7:0 PROXOFFSETMSB 0x00 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Provides the proximity raw information for monitoring purposes. Signed, 2's complement format. Read-only (using PROXCONVDONE), do not write. Table 31 : RegProx8 (Addr 0x13) Description Provides the proximity raw information for monitoring purposes. ...
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... Bits Variable Default 7:0 Reserved 0x00 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Description Provides the proximity compensation offset information for monitoring purposes. Read-only (using PROXCONVDONE), do not write. Table 40 : RegProx17 (Addr 0x1C) Description Defines the sensitivity : 000 : 0 (Min) ...
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... PENTOUCHIRQ/ TOUCHCONVDONEIRQ 2 PENRELEASEIRQ 1 TEMPWARNINGIRQ 0 TEMPALARMIRQ Bits Variable 7 HAPTSHORTSTAT 6 RESETSTAT th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Default Description 0 Enables the HaptShort interrupt OFF Enables the ProxClose interrupt OFF Enables the ProxFar/ProxConvDone interrupt. Cf RegProx0[ OFF Enables the ProxCompDone interrupt ...
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... AUX2DIGOUTEN 4 AUX3DIGOUTEN 3:0 AUX1DIGOUT th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 0 Gives the proximity instantaneous status Far (or proximity sensing disabled Close PROXSTAT (and PROXAVG) is automatically frozen to its current value if pen is down (whether TS or AUXi is the sensor) PROXSTAT is NOT frozen while haptics is running, if needed ...
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... Bits Variable 7:4 AUX2DIGOUT 3:0 AUX3DIGOUT Bits Variable 7:0 SOFTRESET th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Default Description 0000 Defines the digital signal to output on AUX2 : 0000 : RegIrqSrc(0) 1000 : RegStat(0) 0001 : RegIrqSrc(1) 1001 : RegStat(1) 0010 : RegIrqSrc(2) 1010 : RegStat(2) 0011 : RegIrqSrc(3) ...
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... CTB capacitance RXY Proximity sensor serial resistor RMOT Motor resistance CMOUT Motor output capacitor Table 52 : External Components Recommended Values th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 57 – Typical Application Circuit Note +/- 20%, ESR<1 +/- 50 Haptics Enabled 4/5-Wire Min Typ ...
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... ADVANCED COMMUNICATIONS & SENSING ACKAGING NFORMATION 14.1 QFN Package th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 58 - Outline Drawing - QFN Figure 59 - Land Pattern - QFN 60 Haptics Enabled 4/5-Wire www.semtech.com ...
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... ADVANCED COMMUNICATIONS & SENSING 14.2 CSP Package th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing Figure 60 - Outline Drawing - CSP Figure 61 - Land Pattern - CSP 61 Haptics Enabled 4/5-Wire www.semtech.com ...
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... Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. Contact Information Semtech Corporation Advanced Communications and Sensing Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 th Rev 1 – 25 July 2011 SX8654/SX8655/SX8656 Resistive Touchscreen Controller with Proximity Sensing 62 Haptics Enabled 4/5-Wire www.semtech.com ...