參數(shù)資料
型號(hào)： CAP1014-1-EZK
廠商： STANDARD MICROSYSTEMS CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, QCC32
封裝： 5 X 5 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-32
文件頁(yè)數(shù)： 16/73頁(yè)
文件大?。?/td> 945K
代理商： CAP1014-1-EZK
Multiple Channel Capacitive Touch Sensor and LED Driver
Datasheet
SMSC CAP1014
23
Revision 1.64 (01-15-09)
DATASHEET
all of them are treated as one group. The Group also has different controls and allows for different
behavior such as sliding, tapping, or press and hold.
4.4.3
Sensing Cycle
Each Capacitive Touch Sensor has controls to be activated and included in the sensing cycle. When
the device is active, it automatically initiates a sensing cycle and repeats the cycle every time it
finishes. The cycle polls through each active Sensor starting with CS1 and extending through CS14.
As each Capacitive Touch Sensor is polled, its measurement is compared against a baseline “not
touched” measurement. If the delta measurement is large enough, then a touch is detected and an
interrupt generated.
4.4.4
Recalibrating Sensors
Each sensor is regularly recalibrated at an adjustable rate. By default, the recalibration routine stores
the average 256 previous measurements and periodically updates the base “Not Touched” setting for
the Capacitive Touch Sensor input.
This routine is disabled automatically if a touch is detected
so the touch does not factor into the base "Not Touched" setting.
4.5
Grouped Sensor Behavior
The CAP1014 Grouped sensors function as a single entity that operates differently than the individual
button sensors. This group functions as a slider and offers three different interface functions associated
with it.
4.5.1
Tap
If a touch on any Grouped sensor is detected and held for less than or equal to the M_PRESS bit
settings (default 245ms), then a group press is detected, the TAP bit is set, and an interrupt is
generated. Furthermore, the relative position on the slider is determined and the appropriate UP or
DOWN status bits are set and the appropriate LED is actuated.
No further action is taken. If a slide is subsequently detected, then the TAP status bit is cleared.
4.5.2
Press and Hold
If a touch on any Grouped sensor is held for longer than the M_PRESS bit settings (default 245ms),
then a Group Touch is detected and an interrupt is generated. Furthermore, the relative position on
the slider is determined and the appropriate UP or DOWN status bits are set, the PH bit is set, and
the appropriate LED is actuated.
So long as the Grouped sensor is held, it will flag an interrupt at the programmed repeat rate (as
determined by the RPT_RATE_PH bit settings) indefinitely. Once the touch has been removed, then
the Group is returned to its normal operating condition.
The M_PRESS setting is important to distinguish between Tap, Press & Hold and Sliding. If M_PRESS
is set too low, a Press & Hold may be detected during a slow slide. This will cause user confusion as
the Slide direction and LED may change. Longer M_PRESS settings will ensure that the 3 Group
behaviors are reliably distinct and will add more delay prior to the Press & Hold repeat interrupt
generation.
4.5.3
Slider
The Grouped sensors have the capability to detect a slide in either the “Up” or “Down” direction as
referenced by the sensor numbers that are used. For example, an “Up” direction slide would be
detected if CS8 detected a touch, followed by CS9, then by CS10 etc. Likewise, a “Down” direction
slide would be detected if CS10 detected a touch, followed by CS9, then by CS8 etc.
相關(guān)PDF資料
PDF描述
CAT1021LI-42TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
CAT1023LE-28TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
CAT1021LE-45TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
CAT1023LI-28TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
CAT1023LE-45TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CAP1014-1-EZK-TR 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:Multiple Channel Capacitive Touch Sensor and LED Driver
CAP1014-2-EZK-TR 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:Multiple Channel Capacitive Touch Sensor and LED Driver
CAP1026 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:6 Channel Capacitive Touch Sensor with 2 LED Drivers
CAP1026-1-AP-TR 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:6 Channel Capacitive Touch Sensor with 2 LED Drivers
CAP1028 制造商:SMSC 制造商全稱(chēng):SMSC 功能描述:8 Channel Capacitive Touch Sensor with 2 LED Drivers
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*