Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

AK4160 Datasheet(PDF) 11 Page - Asahi Kasei Microsystems

Part # AK4160
Description  16-channel Capacitive Touch Sensor IC
Download  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AKM [Asahi Kasei Microsystems]
Direct Link  http://www.akm.com
Logo AKM - Asahi Kasei Microsystems

AK4160 Datasheet(HTML) 11 Page - Asahi Kasei Microsystems

Back Button AK4160 Datasheet HTML 7Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 8Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 9Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 10Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 11Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 12Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 13Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 14Page - Asahi Kasei Microsystems AK4160 Datasheet HTML 15Page - Asahi Kasei Microsystems Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 40 page
background image
[AK4160]
MS1313-E-01
2011/11
- 11 -
Correction of Environment Drifts
The Capacitance of a sense terminal is influenced from the hydrothermal condition and the grime of the surface.
The AK4160 monitors the measurement value continuously. If the value is changed by the environment, “The Noncontact
Reference Value” is corrected. The reference value is charged very slowly following the measurement value of not
touched status by the correction circuit. The threshold of touch detection and release detection is synchronized with the
reference value. In case of the touch detection, the reference value is not followed to the measurement value.
The increasing rate and the decreasing rate of the reference value can be configured independently. When a finger
approaches slowly to the touch switch, the measurement value is decreased gradually. The decreasing rate of the reference
value must be configured slower than the increasing rate to avoid false detection.
Touch Threshould
V
T
Touch
Release Threshould
Reference Value
Measurement Value
V
T
Reference Value
Measurement Value
Release Threshould
Touch Threshould
Environmental Drift
Figure 8. The Voltage of Sense Terminal and Automatic Correction of Environmental Drift
The initial reference value after the reset release can be selected from a user configuration and the automatic
configuration that configured to 32/32, 31/32, and 30/32 of the first measurement value. (Address 0x70 RIM1-0 bits)
Debounce
The touch status is updated when the output of the second filter is judged as touched or released for N times continuously
for a stabilized touch detection. The count “N” is user-selectable from 0 to 15 times. (Address 0x71 DEBT3-0, DEBR3-0
bits) The Update rate of the touch status is calculated as follows. “Sampling Rate of Second Filter x Sample Count of
Second Filter x Debounce Count”
Automatic Initial Setting
The capacitance of a sensor is different according to the size and the shape of a touch switch. The charge current and the
charge period should be configured adequately for optimal sensitivity to every touch switches. (Address 0x45-0x54
CCn5-0 bits, Address 0x55-0x5C CTn2-0 bits) The AK4160 has the automatic initial calibration that configured to the
optimal setting. (Address 0x5F ACC)
External Reset
The RSTN pin is input terminal for a low-active asynchronous reset with an internal pull-up resistor. A measurement
operation is aborted and the internal circuit is initialized immediately by the reset. The serial interface transaction is also
aborted. If the reset is executed in a transaction, an unintended access may occur. Therefore, the reset must be executed
without transaction of serial interface.


Similar Part No. - AK4160

ManufacturerPart #DatasheetDescription
logo
Asahi Kasei Microsystem...
AK4161 AKM-AK4161 Datasheet
617Kb / 11P
   6-channel Capacitive Touch Sensor IC
AK4161 AKM-AK4161 Datasheet
415Kb / 12P
   6-channel Capacitive Touch Sensor IC
logo
ACCUTEK MICROCIRCUIT CO...
AK4161024D ACCUTEK-AK4161024D Datasheet
113Kb / 2P
   262,144 X 8 Bit MOS Dynamic Random Access Memory
AK4161024D ACCUTEK-AK4161024D Datasheet
89Kb / 2P
   16,384 x 32 Bit CMOS / BiCMOS Static Random Access Memory
AK4161024D ACCUTEK-AK4161024D Datasheet
82Kb / 2P
   32,768 x 32 Bit CMOS/BiCMOS Static Random Access Memory
More results

Similar Description - AK4160

ManufacturerPart #DatasheetDescription
logo
Asahi Kasei Microsystem...
AK4161 AKM-AK4161 Datasheet
415Kb / 12P
   6-channel Capacitive Touch Sensor IC
AK4161EN AKM-AK4161EN Datasheet
617Kb / 11P
   6-channel Capacitive Touch Sensor IC
logo
Microchip Technology
CAP1208 MICROCHIP-CAP1208 Datasheet
605Kb / 67P
   8-Channel Capacitive Touch Sensor
10/28/13
CAP1106 MICROCHIP-CAP1106 Datasheet
784Kb / 48P
   6 Channel Capacitive Touch Sensor
01/27/15
CAP1208 MICROCHIP-CAP1208_15 Datasheet
812Kb / 64P
   8-Channel Capacitive Touch Sensor
07/14/15
CAP1203 MICROCHIP-CAP1203 Datasheet
655Kb / 59P
   3-Channel Capacitive Touch Sensor
07/14/15
CAP1206 MICROCHIP-CAP1206 Datasheet
707Kb / 63P
   6-Channel Capacitive Touch Sensor
07/14/15
logo
Renesas Technology Corp
LDS6200 RENESAS-LDS6200 Datasheet
778Kb / 36P
   PureTouch®* Low Channel Capacitive Touch Sensor IC Family
2011
logo
EM Microelectronic - MA...
EM6420 EMMICRO-EM6420 Datasheet
110Kb / 1P
   Ultra Low Power Capacitive Touch Sensor Interface IC
EM6420 EMMICRO-EM6420_12 Datasheet
849Kb / 54P
   Ultra Low Power Capacitive Touch Sensor Interface IC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com