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CPT112S 是 TouchXpress 系列中的一員,專為透過 I²C 介面快速新增電容式觸控功能而設計,它省去複雜韌體開發,大幅縮短電容感測應用的開發時程。
此款裝置最多可支援 12 組電容感測輸入,封裝小至 3×3 mm QFN,並透過 I²C 與主控晶片連接,提供簡易的電容觸控解決方案;同時具備抗濕度干擾、趨近喚醒(wake-on-proximity)與蜂鳴器反饋等進階功能,使用者體驗更加直覺;所有觸控參數皆可透過圖形化設定工具調校,無須編寫任何韌體,即可快速完成使用者介面設計,極大降低開發門檻與工時。
KEY FEATURES
The CPT112S device is ideal for a wide range of capacitive touch applications including
the following:
*Silicon Labs Authorized Distributor
此款裝置最多可支援 12 組電容感測輸入,封裝小至 3×3 mm QFN,並透過 I²C 與主控晶片連接,提供簡易的電容觸控解決方案;同時具備抗濕度干擾、趨近喚醒(wake-on-proximity)與蜂鳴器反饋等進階功能,使用者體驗更加直覺;所有觸控參數皆可透過圖形化設定工具調校,無須編寫任何韌體,即可快速完成使用者介面設計,極大降低開發門檻與工時。
KEY FEATURES
- No firmware development required
- Simple GUI-based configurator
- 12 Capacitive Sensor inputs with programmable sensitivity
- Configurable multi-button slider
- I2C interface to communicate to the host
- Lowest power capacitive sense solution
- Active — 200 μA
- Sleep — 1 μA
- Wake on proximity
- Superior noise immunity: SNR up to 270:1
- Moisture immunity
- Mutually-exclusive touch qualifier
- Button touch time-out to avoid false touches
- Buzzer output for audible touch feedback
The CPT112S device is ideal for a wide range of capacitive touch applications including
the following:
- Home appliances
- Instrument / Control panels
- White goods
- Medical equipment
- Consumer electronics
- Lighting control
*Silicon Labs Authorized Distributor


