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參數(shù)資料
| 型號： | AT42QT5480-CU QS444 |
| 廠商： | Atmel |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SENSOR DUAL TOUCH 49-BGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | QTwo™ |
| 類型： | 電容式觸摸屏控制器 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | I²C |
| 電流 - 電源： | 4.9mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 49-BGA |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AT42QT5480-CU QS444DKR |
Advanced Technology that is Flexible, Adaptable
and Easy to Use
Atmel’s patented scanning technique provides many configuration possibilities, including the
creation of true dual-touch touchscreens.
Precision Touch Sensing with QTwo
Atmel’s QTwo ICs make use of timed multiplex sensing to read a matrix array of sense
electrode nodes arranged on the touch panel. Each node is scanned sequentially at high
speed to provide precise identification of the position and degree of the user’s touch.
Different configurations of X and Y lines provide custom performance levels that can be
configured for the specific application. The raw output data from the scan can be used in
many different ways.
Genuine Two Touch Touchscreens
When the touchscreen is touched with a dual-finger gesture, the ICs generate precise X-Y
coordinates for two, fully independent touch positions. These positions can be identified and
tracked anywhere across the screen surface on screens of up to 8" diagonal (QT5480 only
– the maximum screen size for the QT5320 IC is 4.3").
Both ICs have a full palette of Two Touch interface gestures built in:
■
Pinch (zoom in)
■
Stretch (zoom out)
■
Rotate
■
Press and Tap
■
Press and Double Tap
■
Press and Flick
■
Press and Drag
■
Two-finger drag
Multikey Keypads
In QMatrix mode, the QT5480 can also control up to 48 (or 32 for the QT5320) discrete touch
keys in a 8x6 (8x4) X-Y input matrix.
The chips can control a wide range of different sizes and shapes of keys, and the sensitivity
of each key is individually configurable. Atmel’s patented Adjacent Key SuppressionTM (AKSTM)
ensures that tightly spaced keys can be discriminated and a guard channel feature provides
reliable rejection of false inputs.
Multiple Slide Controls
In QSlide/QWheel mode the QT5320 can provide up to 4 sliders and QT5480 can control up
to 8 (or 6 for the QT5320) touch sliders or wheels.
Each slider or wheel requires a single Y line of the keypad input matrix, but the resolution is
selectable and each slider can be from 2 to 8 keys long. Using 8 keys in a slider/wheel will
allow a resolution of up to 8 bits to be achieved.
Hybrid Panels
Both ICs can be configured to allow the creation of hybrid panels containing a mix of
touchscreen, sliders, wheels and discrete keys. A very wide range of object combinations
can be configured – see each IC’s datasheet for full details.
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