At Lab Dcc Dpi7 Only V0.4

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At Lab Dcc Dpi7 Only V0.4

  1. 1. Digital Contact Controller 3rd floor, SeogAm Bld. 1082-12, PoongDuckChun-Dong, SuJi-Gu, YongIn-Shi, KyungGi-Do 449-172, Korea (Tel)+82-31-266-3082, (Fax)+82-31-266-3083 www.atlab.co.kr
  2. 2. Applications Portable Electronics (MP3, Contents Mobile Phone, PMP, PDA, Camera) Home Electronics (TV, DVD, Contents Air conditioner, Refrigerator, Micro oven, LCD, Door Lock, AV) DCC Office & Others (Fax, Copy Contents Machine, ATM, Control Panel)
  3. 3. The Principle of Capacitive Touch • Allow design flexibility: – Free from pad size, pad location, cover thickness, PCB variation – Capable of on-board, not on additional board • Result in same sensitivity all the time Insulator (Set cover) Touch PAD (Copper) A PCB CTouch = ε ATA2508 D Ctouch: The capacitance induced between finger and touch pad when touched. ε : the constant value of permittivity (Air=1,Glass= 10, Acryl=5~10, Rubber=2~3) D : The thickness of Set Cover A : The size of Touch Pad
  4. 4. The Operating Principle of DCC
  5. 5. The Operating Principle of DCC R Sampling ref Clock C Sampling Reference ref Clock R sen sen C Sensing tdiff Csen Sensor generates time delay Sensing delay is compared with a reference delay Delay difference is measured by “ Time Converter ”
  6. 6. ATA2508 Features Patented fully digital architecture Twelve channels (40QFN) or nine channels (32QFN,24SSOP) available Programmable registers to characterize applications I2C for the host interface Different sensitivity assignment to each channel for design flexibility Configurable AIC™ (Automatic Impedance Calibration) Two kinds of interrupts (GINT for general purpose, TINT for touch detection) Eight bit resolution of touch strength data (256 step) APISTM: Mode1, Mode2, Mode3 (Adjacent Pattern Interference Suppression) Configurable twelve DIO pins as direct touch outputs, extended GPIOs, or external interrupt inputs Beep generation for tactile feeling Idle and Sleep modes for power saving De-bounced touch outputs
  7. 7. Consumption Current Strong Point Response Time 1. Consumption Current : 1/10 times comparing to competitors - Because of not using analog technology, circuit architecture is very simple. 2. Response Time 25 times comparing to competitors - Because it dose nor need not complex signal processing, can raise the data sampling rate. Current [mA] 10 C x 25 Faster Speed Q 1 S x 10 Less Power ATLab 0.1 0 1 2 3 4 5 6 Conversion Frequency [KHz]
  8. 8. Differential vs. Single-End Single-End Input Differential Input R ref C Sampling Reference Clock R sen C Sensing Csen
  9. 9. Strong Point Water proof Single-End Differential Sensor Input Sensor Input Sensing Cap. Ctouch Reference Input Water drop Water drop GND Input GND Input
  10. 10. Strong Point RF Susceptibility Test Touch Decision Level Change of Output Frequency [GHz] RF Signal: 3Vp-p swept from 100MHz to 2.4 GHz, Korea MIC Condition
  11. 11. Strong Point ESD Level HBM : 8KV (Input Sensor) Set : 15KV Voltage 8KV 6KV 4KV 2KV Analog DCC Touch Sensor
  12. 12. Strong Point Development Tool PC USB Interface Board Touch Board USB I2C Tuning Kit provides you easy and quick design environment !
  13. 13. Feature APIS mode 1 2 3 1 2 3 APIS Mode I Output Data 4 5 6 4 5 6 Touch Interference strength APIS mode 1 Area 7 8 9 7 8 9 0 # * 0 # * * 8 0 # Real Touch Output Touch Output by APIS I 1 2 3 1 2 3 APIS Mode II Output Data 4 5 6 4 5 6 strength APIS mode 2 Touch Interference Area 7 8 9 7 8 9 Strength Threshold * 0 # * 0 # * 8 0 # Real Touch Output Touch Output by APIS II 1 2 3 1 2 3 APIS Mode III Output Data 4 5 6 4 5 6 strength APIS mode 3 Touch Interference Area 7 8 9 7 8 9 * 0 # * 0 # * 8 0 # Real Touch Output Touch Output by APIS III
  14. 14. Feature Individually Adjustable Sensitivity Sensitivity =a Zin Zref Sensitivity = b Zin Zref
  15. 15. Feature Configurable AIC DCC Tuning Viewer Initial setup Sensitivity Sensitivity =a Zin Zref Sensitivity changed by external environment Sensitivity = b Zin PCB, Temp, Humidity Variation Zref Recovered Sensitivity by AIC Sensitivity =a Zin Keep sensitivity stable Zref • Individual sensitivity setting by registers • Pause/Resume AIC function by Host • Configure AIC interval
  16. 16. Feature LED SIN9 SIN8 SIN7 SIN5 SIN3 SIN1 SIN6 SIN4 SIN2 SIN0 SIN11 SIN10 DIO0 REF_IN LED DIO1 LED DIO2 DIO3 Interrupt Interrupt DIO4 Interrupt DIO5 Interrupt DIO6 DIO1 Interrupt DIO7 GPIO DIO8 GPIO DIO9 GPIO DIO10 DIO11 DATA CLK I2C Supported General purpose DIO
  17. 17. Feature Strength Output Accelerator using touch strength output function. Touch Output [255:0] GND Pad Insulator d Touch Input Pressure = 1 / d
  18. 18. Patent Status % % Layout % Navigation Algorithm Circuit 3 5 4 % 3 Set 5 % Device
  19. 19. Road Map 11 2007 3 6 10 11 2008 2 DPD7 DPD7 Parallel Sampling, Daisy-ch, AIC 7b Parallel Sampling, Daisy-ch, AIC 7b SmartSensor ATA25XX ATA25XX Parallel Sampling, SIF, AIC 7b ATA2501 + 8b MCU DPI14 DPI14 Customized Parallel Sampling, I2C, AIC 14b Parallel Sampling, I2C, AIC 14b ATA2509 ATA2509 • OTP Memory • Peripheral Customized DPS7 • n-ch Delay, Parallel Sampling, SIF, AIC 7b ATA2501 DMI14 DMI14 Multiplexed Sampling, I2C, AIC 14b Multiplexed Sampling, I2C, AIC 14b ATA25XX ATA25XX Customized DPI7 DPI7 Parallel Sampling, I2C, AIC 7b Parallel Sampling, I2C, AIC 7b ATA2508 ATA2508 Customized • n-ch • n-ch Customized • n-ch
  20. 20. Shared Partners ELECTRONICS @Lab ELECTRO-MECHANICS
  21. 21. Thanks ! Make It Easy and Simple ! dcc@atlab.co.kr

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