AK4186 AKM [Asahi Kasei Microsystems], AK4186 Datasheet
AK4186
Related parts for AK4186
AK4186 Summary of contents
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... The AK4186 operates off of supply voltage down to 1.6V in order to connect a low voltage microprocessor. The AK4186 is the best fit for cellular phone, DSC, DVC, smart phone and other portable devices. ...
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... Ordering Guide −40 ∼ +85°C AK4186ECB −40 ∼ +85°C AK4186EN AKD4186 AK4186ECB Evaluation Board AKD4186EN AK4186EN Evaluation Board ■ Pin Layout AK4186ECB AK4186EN TEST MS1068-E-04 12pin CSP (1.66mm x 1.26mm, 0.4mm pitch) 16pin QFN (3mm x 3mm, 0.5mm pitch) 3 AK4186ECB 2 Top View ...
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... Touch Panel Y- Input (4-wire, PANEL bit = “0”) Touch Panel Bottom Left Input (5-wire, PANEL bit = “1” Connection. No internal bonding. This pin must be connected to VSS. - Ground I TEST pin This pin must be connected to VSS Connection. No internal bonding. This pin must be connected to VSS [AK4186] Function 2011/03 ...
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... WARNING: AKM assumes no responsibility for the usage beyond the conditions in this datasheet. MS1068-E-04 ABSOLUTE MAXIMUM RATINGS Symbol VDD IIN IOUTDRV VIN Ta Tstg RECOMMEND OPERATING CONDITIONS Symbol VDD - 4 - Setting This pin must be open. min max -0.3 4.6 - ± −0.3 VDD+0.3 or 4.6 -40 85 -65 150 min typ max 1.6 1.8 3.6 [AK4186] Units °C °C Units V 2011/03 ...
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... VDD - 220 - min typ max 0.8xVDD - - - - 0.2xVDD - VDD-0 0.3 -10 10 -10 10 [AK4186] Units Bits Bits LSB LSB LSB LSB LSB LSB kHz Ω Ω kΩ V μA μA μA μA Units V V μ μA μA 2011/03 ...
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... Cb tR tHIGH tF tHD:DAT tSU:DAT tSU:STA Start Figure 2. Timing Diagram - 6 - min typ max 2.5 3.6 OSC - - 400 1.3 - 0.6 - 1.3 - 0 400 VIH VIL tSP VIH VIL tSU:STO Stop [AK4186] Units 5.1 MHz kHz - μs μs - μ μs μ μs - μs μs 0.3 μs 0.3 μ 2011/03 ...
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... A/D conversion. The full scale (ΔVREF) of the A/D converter OSC depends on the input mode. Position and pen pressure are measured in differential mode, and then IN is measured in single-ended mode. The AK4186 is controlled by 8bit serial command. A/D conversion result is 12bit data output on the SDA pin. ■ ...
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... Table 3. Measurement Mode (5-wire) X-Plate YP-Driver Y-Plate VREF+ YP ADC VREF YN-Driver -Position Measurement Differential Mode 4-wire Touch Screen Construction - 8 - [AK4186] Reference Voltage (ΔVREF) Ref. Mode VREF+ VREF DFR TL BR DFR VDD X-Plate XP Y-Plate AIN+ YP AIN- XN ...
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... WIPER pin to measure the Y-axis of current position at AIN+. The top right and top left contacts at the 4 corners are connected to VDD and the bottom right and bottom left contacts connected to VSS. Then the AK4186 initiates A/D conversion of AIN+ input voltage, and Y-axis position is determined. Terminal ...
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... Y ⎟ ⎟ − ⋅ − ⎜ Position Y - plate Z ⎝ 4096 ⎠ 1 touch VREF+ ADC VREF- Figure 5. Pen Pressure Measurements - 10 - ⎞ ⎟ ⎠ VDD AIN+ AIN Z2-Position Measurement Differential Mode [AK4186] touch 2011/03 ...
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... HIGH defines STOP condition (Figure The AK4186 can perform more than one byte write operation per sequence. After receipt of the third byte the AK4186 generates an acknowledge and awaits the next data. The master can transmit more than one byte instead of terminating the write cycle after the first data byte is transferred ...
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... D4 D3 Figure 10. Byte Structure after the second byte Figure 11. START and STOP Conditions 2 1 Figure 12. Acknowledge on the Data (n+ C-Bus Mode 0 CAD0 R stop condition not acknowledge acknowledge 8 9 clock pulse for acknowledgement 2 C-Bus [AK4186] 2011/03 ...
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... WRITE operation, the AK4186 starts A/D conversion in single mode. The master issues the slave address with the R/W bit “1”. The AK4186 then generates an acknowledge, and outputs ADC data. The ADC data is 2 bytes format (MSB first), and upper 12-bit are valid and lower 4-bit are filled with “0”. ...
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... D8 D7 Figure 17. ADC Data (High Byte Figure 18. ADC Data (Low Byte ADC Data ADC Data P (High Byte) (Low Byte) ADC Data (Low Byte ADC Data ADC Data P (High Byte) (Low Byte [AK4186] 2011/03 ...
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... Z1S9 Z1S8 Z1S3 Z1S2 Z1S1 Z1S0 Z2S11 Z2S10 Z2S9 Z2S8 Z2S3 Z2S2 Z2S1 Z2S0 INS11 INS10 INS9 INS8 INS3 INS2 INS1 INS0 Table 5. AK4186 Register Map - COUNT INTERVAL2 INTERVAL1 INTERVAL0 SEQST3 SEQST2 SEQST1 ...
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... System Reset Upon power-up, the AK4186 must be reset by writing the reset command. (Refer to the “ details) This ensures that all internal register reset to their initial values (00H) and set the channel to X-axis (auto driver = OFF). The System reset can also stop a sequential measurement forcibly, but all data will be cleared. ...
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... The AK4186 starts A/D conversion in sequence mode by setting the COUNT, SEQM2-0, INTERVAL2-0 bits of the register address to 02H. The AK4186 makes six or ten measurements by setting the COUNT bit. The results are used to calculate the average value, discarding the minimum and maximum values, and the result sets the data register of sequence mode ...
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... The AK4186 starts A/D conversion in sequence mode by setting the COUNT, SEQM2-0, INTERVAL2-0 bits of the register address 02H. The AK4186 makes six or ten measurements by setting the COUNT bit. The results are used to calculate the average value, discarding the minimum and maximum values, and the result sets the data register of sequence mode. The AK4186 registers data from address 11H in order of setting the SEQM2-0 bits. The master can read the ADC data by the register read operation after confirming the PENIRQN pin turns to “ ...
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... Single Mode Data Register The AK4186 starts A/D conversion in single mode by receiving a single measurement command, and then outputs MSB first 12bit A/D data. Addr Register Name 20H Single XH 21H Single XL 22H Single YH 23H Single YL 24H Single Z1H 25H Single Z1L 26H Single Z2H ...
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... Sleep mode is controlled by SLEEP1-0 bits. The AK4186 changes to sleep mode on the rising edge of 27th SCL after the micro-controller writes “01” or “10” to SLEEP1-0 bits of AK4186’s register. All touch screen driver switches and A/D converter are powered down in this sleep mode, and it reduces power consumption to the minimum value ...
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... Figure 24. Dummy Address Construction Figure 25. Dummy Command Construction Slave Dummy P S Command Address Figure 26. Power-up Sequence - CAD0 R R/W= “0” Sub Reset P Address Command Reset Command [AK4186] 2011/03 ...
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... In case of the single measurement mode, this touch panel configuration register sets the measurement mode of the AK4186. Touch screen driver switches are turned ON at Driver ON mode (PD0 bit = “1”) on the rising edge of the 27th SCL possible to have longer tracking time even if the source of analog input impedance is high, because the actual sampling is executed at the read operation ...
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... When the sequence is finished, the AK4186 sets the PENIRQN pin to “H” and notifies that sequence is ended. After 20μs (typ.) is passed from the rising edge of the PENIRQN pin, the internal oscillator is powered down and PEN interrupt function is enabled ...
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... Figure 33. ADC Data (Low Byte Tracking, Conversion Tracking, Conversion Tracking, Conversion (X-axis nth) (Y-axis 1st) (Y-axis nth fosc Wait 20 / fosc 20 / fosc ADC Data (12H) ADC Data (13H) ADC Data (14H) MASTER MASTER MASTER ACK ACK NACK [AK4186] PENIRQN Enable DAV P 2011/03 ...
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... Pen Interrupt The AK4186 has pen interrupt function to detect pen touches. Pen interrupt function is enabled at power-down state and PD0 bit = “0” (Figure 34). The YN pin (4-wire pin (5-wire) is connected to VSS at the PEN interrupt enabled state. The XP pin (4-wire) or WIPER pin (5-wire) is pulled up via an internal resistor (R connected to the XP pin (4-wire) or WIPER pin (5-wire) inside. If touch plate is pressed by a pen, the current flows via < ...
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... Auxiliary Analog Input Figure 35. Typical Connection Diagram (4-wire, AK4186ECB) Notes: - VSS of the AK4186 should be distributed separately from the ground of external controllers. - All digital input pins (SCL, SDA, CAD0 pins) must not be left floating. MS1068-E-04 SYSTEM DESIGN shows the system connection diagram for the AK4186. The evaluation board ...
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... AK4186EN <4-wire Touch Screen Input> Digital Ground µP Figure 36. Typical Connection Diagram (4-wire, AK4186EN) Notes: - VSS of the AK4186 should be distributed separately from the ground of external controllers. - All digital input pins (SCL, SDA, CAD0 pins) must not be left floating. MS1068-E-04 4-wire Touch Screen ...
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... AK4186ECB <5-wire Touch Screen Input> Analog Supply 1.6∼3.6V + 10µ Figure 37. Typical Connection Diagram (5-wire, AK4186ECB) Notes: - VSS of the AK4186 should be distributed separately from the ground of external controllers. - All digital input pins (SCL, SDA, CAD0 pins) must not be left floating. MS1068-E-04 5-wire Touch Screen BR TR ...
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... VSS of the AK4186 must be connected to the analog ground plane. System analog ground and digital ground should be connected together near to where the supplies are brought onto the printed circuit board. Decoupling capacitors should be as near to the AK4186 as possible, with the small value ceramic capacitor being the nearest. ...
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... CSP (Unit: mm) Top View 1.66 ± 0.05 XXXX S ■ Material & Lead finish Package molding compound: Epoxy resin, Halogen (bromine and chlorine) free Solder ball material: SnAgCu MS1068-E-04 PACKAGE (AK4186ECB) (0.23 0. [AK4186] Bottom View A 0. φ 0.27 ± 0.05 φ 0. ...
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... Note: The thermal die pad must be open or connected to the ground. ■ Package & Lead frame material Package molding compound: Epoxy Resin, Halogen (bromine and chlorine) free Lead frame material: Cu Alloy Lead frame surface treatment: Palladium Plate MS1068-E-04 PACKAGE (AK4186EN) B 1.50 0. Bottom View 1 ...
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... MS1068-E-04 MARKING (AK4186ECB) XXXX A1 Date Code: XXXX(4 digits) Pin #A1 indication MARKING (AK4186EN) 4186 XXXXX Date Code: XXXXX (5 digits) Pin #1 indication - 32 - [AK4186] 2011/03 ...
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... Setup Sequence Figure 27 was changed. Product AK4186EN was added. Addition Spec 5 ANALOG CHARACTERISTICS Change Gain Error (AK4186EN): -6 → -4.5 (min) Error 3 PIN/FUNCTION Correction Pin No. D3, 12: BL IMPORTANT NOTICE , and AKM assumes no responsibility for such use, except for the use Note2 → +3.5 (max) “ ...