On Semi公司的LC717A30UJ是單芯片容性觸摸/接近傳感方案.器件包括一個(gè)用于輸入通道選擇的集成的多路復(fù)用器,模數(shù)轉(zhuǎn)換器,確定電容變化及模擬輸出幅值的雙級放大器,系統(tǒng)時(shí)鐘,上電復(fù)位電路和所需的所有控制邏輯,以創(chuàng)建一個(gè)整體方案.器件提供8個(gè)電容傳感輸入通道,其響應(yīng)時(shí)間測量為16毫秒（ms）,工作電源電壓2.6V至5.5 V，具有1µA的低功耗待機(jī)模式,主要用在應(yīng)用于工業(yè)和消費(fèi)終端產(chǎn)品的各種觸摸或手勢人機(jī)接口,如電磁爐,電冰箱,家庭娛樂系統(tǒng),樓宇自動化設(shè)備,工業(yè)設(shè)備和照明控制等.本文介紹了LC717A30UJ主要特性,框圖和幾種應(yīng)用電路,以及電容觸摸評估板LC717A30UJGEVK特性,電路圖,材料清單和PCB設(shè)計(jì)圖.

The LC717A30UJ is a high performance, low cost, and highlyusable capacitance converter for electrostaTIc capaciTIve touch andproximity sensors.

8 capacitance-sensing input channels ideal for use in any endproducts that needs an array of switches. The LC717A30Jfacilitates a short system development TIme through its automaTIccalibration function and minimal external components. Thedetection result (ON/OFF) for each sensor is read out by the serialinterface (I2C or SPI).

LC717A30UJ主要特性:

? Differential capacitive detection using mutual capacitance.

? Operates with small to large capacitance sensor input pads.

? Capacitance detection down to femto-Farad level.

? Measurement time 16 ms for 8 sensors.

? Minimal external components.

? Selectable interface : I²C or SPI.

? Current consumption : 0.8 mA (VDD = 5.5 V)

? Supply voltage : 2.6 V to 5.5 V

? AEC-Q100 qualified and PPAP capable.

LC717A30UJ典型應(yīng)用:

? Automotive : Smart key, Control switches, Car audio, Proximity

? Consumer : Home Appliance, White goods, Induction Cooking

? Industrial : Security lock

? Computing : PC Peripherals, Audio Visual equipment

? Lighting : Remote control switches

圖1.LC717A30UJ簡化框圖

圖2.LC717A30UJ應(yīng)用電路(1)

圖3.LC717A30UJ應(yīng)用電路(2):8個(gè)小電容傳感器通路,4線SPI接口

圖4.LC717A30UJ應(yīng)用電路(3): 8個(gè)大電容傳感器通路,I2C接口

電容觸摸評估板LC717A30UJGEVK

The Electrostatic capacitive sensor kit (LC717A30UJGEVK) has several evaluation boards to evaluate the operation of various switch patterns and the communication to PC.

電容觸摸評估板LC717A30UJGEVK特性:

Evaluation of 2 channel Proximity Sensor

Evaluation of 8 channel Touch Switch

Evaluation of Liquid Level Sensing

Evaluation of Electrode Sheet of Film Type

Evaluation of Customer’s Sensor Board

Communication Module between this Kit and PC through USB

電容觸摸評估板LC717A30UJGEVK應(yīng)用

Automotive

Consumer

Industrial

Computing

Lighting

圖5.電容觸摸評估板LC717A30UJGEVK外形圖

電容觸摸評估板LC717A30UJGEVK包括:

圖6.主控制板LC717A30UJ00GEVB電路圖

主控制板LC717A30UJ00GEVB材料清單:

圖7.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(1)

圖8.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(2)

圖9.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(3)

圖10.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(4)

圖11.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(5)

圖12.主控制板LC717A30UJ00GEVB PCB設(shè)計(jì)圖(6)

圖13.主控制板LC717A30UJ00GEVB PCB外形尺寸圖

圖14.DIP轉(zhuǎn)換板LC717A30UJDIPGEVB電路圖

DIP轉(zhuǎn)換板LC717A30UJDIPGEVB材料清單:

圖15.DIP轉(zhuǎn)換板LC717A30UJDIPGEVB PCB設(shè)計(jì)圖(1,2)

圖16.DIP轉(zhuǎn)換板LC717A30UJDIPGEVB PCB設(shè)計(jì)圖(3,4)

圖17.DIP轉(zhuǎn)換板LC717A30UJDIPGEVB PCB設(shè)計(jì)圖(5,6)

圖18.DIP轉(zhuǎn)換板LC717A30UJDIPGEVB PCB設(shè)計(jì)圖(7,8)

圖19.FPC轉(zhuǎn)換板LC717A30UJFPCGEVB電路圖

FPC轉(zhuǎn)換板LC717A30UJFPCGEVB材料清單:

圖20.FPC轉(zhuǎn)換板LC717A30UJFPCGEVB PCB設(shè)計(jì)圖(1,2)

圖21.FPC轉(zhuǎn)換板LC717A30UJFPCGEVB PCB設(shè)計(jì)圖(3,4)

圖22.FPC轉(zhuǎn)換板LC717A30UJFPCGEVB PCB設(shè)計(jì)圖(5,6)

圖23.FPC轉(zhuǎn)換板LC717A30UJFPCGEVB PCB設(shè)計(jì)圖(7,8)

圖24.2通路傳感器板LC717A30UJ2CH00GEVB電路圖

2通路傳感器板LC717A30UJ2CH00GEVB材料清單:

圖25.2通路傳感器板LC717A30UJ2CH00GEVB電路圖

圖26.2通路傳感器板LC717A30UJ2CH00GEVB PCB設(shè)計(jì)圖(1,2)

圖27.2通路傳感器板LC717A30UJ2CH00GEVB PCB設(shè)計(jì)圖(3,4)

圖28.2通路傳感器板LC717A30UJ2CH00GEVB PCB設(shè)計(jì)圖(5,6)

圖29.2通路傳感器板LC717A30UJ2CH00GEVB PCB設(shè)計(jì)圖(7,8)

觸摸開關(guān)板ELECTRODE00GEVB

圖30.觸摸開關(guān)板ELECTRODE00GEVB電路圖

觸摸開關(guān)板ELECTRODE00GEVB材料清單:

圖31.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(1)

圖32.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(2)

圖33.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(3)

圖34.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(4)

圖35.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(5)

圖36.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(6)

圖37.觸摸開關(guān)板ELECTRODE00GEVB PCB設(shè)計(jì)圖(7)

圖38.觸摸開關(guān)板ELECTRODE00GEVB電極圖

接近傳感器板ELECTRODE01GEVB

圖39.接近傳感器板ELECTRODE01GEVB電路圖

接近傳感器板ELECTRODE01GEVB材料清單:

圖40.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(1)

圖41.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(2)

圖42.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(3)

圖43.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(4)

圖44.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(5)

圖45.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(6)

圖46.接近傳感器板ELECTRODE01GEVB PCB設(shè)計(jì)圖(7)

液體水平傳感板ELECTRODE02GEVB

圖47.液體水平傳感板ELECTRODE02GEVB電路圖

液體水平傳感板ELECTRODE02GEVB材料清單:

圖48.液體水平傳感板ELECTRODE02GEVB PCB設(shè)計(jì)圖(1,2)

圖49.液體水平傳感板ELECTRODE02GEVB PCB設(shè)計(jì)圖(3,4)

圖50.液體水平傳感板ELECTRODE02GEVB PCB設(shè)計(jì)圖(5,6)

圖51.液體水平傳感板ELECTRODE02GEVB PCB設(shè)計(jì)圖(7,8)

圖52.液體水平傳感板ELECTRODE02GEVB電極圖

感應(yīng)鍵片

圖53.感應(yīng)鍵片圖

感應(yīng)鍵片材料清單: