【应用】Silicon Labs CPT212B电容式触摸控制器支持多达12个电容式传感器输入，助力智能手环应用

时间： 2019-01-27 来源：Silicon Labs

技术问答

智能手环是一种穿戴式智能设备。通过这款产品，用户可以记录日常生活中的锻炼、睡眠、部分还有饮食等实时数据，并将这些数据与手机、平板、ipod touch同步，起到通过数据指导健康生活的作用。智能手环的原理是手环内置低功耗蓝牙4.0模块，可以与手机、平板、PC客户端进行连接，通过传感器采集人们的各种生物体征信息以及活动数据，可以随时随地设置身高、体重、步幅等信息和上传运动数据，甚至能够捕捉神经元的兴奋，从而在一定程度上识别人的情绪。

图1 智能手环功能示意图

触摸传感器已经被广泛使用很多年了。但随着混合信号可编程器件的发展，电容式触摸传感器已成为各种消费电子产品中机械式开关的一种实用、增值型替代方案。任何电容式触摸传感系统的核心都是一组与电场相互作用的导体。人体皮肤下面的组织中充满了传导电解质——这是一种有损电介质。正是手指的这种导电特性使得电容式触摸传感成为可能。

SILICON LABS的CPT212B是一款采旨在通过消除固件复杂性，并缩短电容式传感应用开发周期的12通道TouchXpress电容式触摸控制器，可以通过I2C接口快速添加电容式触摸，支持多达12个电容式传感器输入，为智能手环提供解决方案，是智能手环触控应用的理想选择。

图2 CPT212B内部功能结构图

首先，CPT212B电容式触摸控制器提供很多先进功能，比如防潮、接近唤醒以及蜂鸣器反馈增强用户体验等。该控制器不需要进行固件开发，并且可以使用一个简单的基于GUI的配置程序配置所有的电容触摸感参数。该控制器通过消除对复杂固件开发的需求，能够以最小的开发工作量支持智能手环快速用户界面设计。其次，鉴于尺寸和成本限制以及对积极用户体验的需要，在设计可穿戴设备时要满足的最重要的设计目标就是降低功耗、延长电池寿命。CPT212B工作态电流典型值仅为3.1mA，当12路传感器同时工作时，睡眠电流消耗仅为0.95uA，工作电流消耗仅为200μA，休眠电流消耗为1μA，功耗极低，特别适用于对智能手环等对电能敏感的电池类应用。

此外，CPT212B电容式触摸控制器采用3mm x 3mm的QFN20的封装，可以节省空间，非常适合智能手环这种对空间要求比较高的设备。综上所述， Silicon Labs 的CPT212B电容式触摸控制器可以具有高性能、低功耗、小封装、支持多达12个电容式传感器输入等特点，可以将智能手环的应用于生活、工业的各个方面。世强作为Silicon Labs的代理商可提供充足的货源。

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型号- EFM32GG12B810F1024IL120-A,C8051F974-A-GMR,EFR32MG12P432F1024GM48-BR,C8051F381-GQR,ZGM130S037HGN2,ZGM130S037HGN1,C8051F38A-B-GQ,EFM8BB31F16I-D-QFP32,EFM8LB12F64ES1-B-QFN32,SI7020-A20-GM,C8051F023-GQ,EFR32BG12P433F1024GL125-CR,SI7210-B-13-IM2R,C8051F587-AM,WF200SCR,EFM8BB31F64G-D-QFP32R,EFM32ZG222F32-QFP48,EFM8BB51F16I-C-QFN20R,EFM8LB11F32ES0-C-QFN24R,EFM8SB20F32G-B-QFN32,EFM8LB12F64E-B-QFN24,C8051F531-C-IM,EZR32HG220F64R61G-C0R,EFM32GG390F1024G-E-BGA112R,C8051F011-GQ,C8051F390-A-GMR,C8051F362-C-GM,C8051F930-G-G1DI,EFM8LB12F64ES1-B-QFN24,EFR32FG12P231F1024GM48-CR,EFR32FG12P431F1024GM68-CR,C8051F531-C-IT,EFM32GG12B330F512GQ100-AR,EZR32HG320F64R68G-B0,BGX13S22GA-V31,EFM8BB31F32I-C-QFP32R,SI4011-C100EGTR,C8051F975-A-GM,CP2201-GMR,WF200SDR,EFR32MG1P232F256GM48-C0,EFR32FG22C121F512GM32-C,EFP0108GM20-E,CP2120-GMR,EFP0107GM20-DR,CP2108-B03-GMR,EFM32G840F64G-E-QFN64,EFP0108GM20-D,EFM32GG12B110F1024IM64-A,EFM32GG12B110F1024GQ64-A,EFR32MG13P733F512GM48-DR,BGX220S22HNA21R,EFM32GG230F1024G-E-QFN64R,C8051F125-GQ,EFM8UB20F64G-B-QFP48R,EFM8LB12F32ES0-C-QFN32R,EFR32MG22C224F512GN32-CR,C8051F553-AMR,EFR32FG23B020F128GM40-B,EFM8BB31F16I-C-QFN24R,EFR32MG13P732F512GM32-CR,SI1034-B-GM3,C8051F801-GU,EFM8BB31F16I-B-QSOP24,C8051F124-GQR,SIM3C167-B-GQ,EFR32MG13P733F512GM48-CR,C8051F802-GUR,SIM3C167-B-GM,EFR32MG12P432F1024GM48-CR,C8051F043-GQR,EFM32WG880F256-B-QFP100,C8051F300-E-GDI,EFM8BB51F8G-C-QFN20,SI4355-B1A-FM,EFM8LB11F16ES0-C-QFN24R,EFM8SB20F32G-B-QFN24,EFR32MG12P332F1024GM48-CR,EZR32HG220F64R69G-C0,EFR32FG1V232F256GM32-C0R,C8051F360-C-GQR,EFR32BG22C222F352GM40-CR,EFM32JG1B200F256GM32-C0,CP2102N-A01-GQFN20R,EFR32BG12P432F1024GM48-C,EFR32FG1V032F128GM32-C0,SI1012-C-GM2,C8051F133-GQR,C8051F230-GQR,EFM32HG110F64G-C-QFN24R,SI1152-AB00-GM,SI4432-B1-FMR,EFM32GG11B320F2048GL112-BR,EFM8SB20F32G-B-QFN24R,SI1175E2-B2-GM,EM3587-RTR,C8051F302-GMR,C8051F963-B-GM,EFR32FG23B010F512IM40-B,CP2615-A02-GM,EFM8LB11F32ES1-C-QFN32R,C8051F563-IM,SI4060-B1B-FM,C8051F047-GQ,C8051F531A-ITR,EFR32BG1P333F256GM48-C0,C8051F563-IQ,EFM32ZG110F32-B-QFN24,WF200CR,EFR32MG13P732F512GM32-DR,ZGM130S037HGN1R,EZR32HG220F64R67G-B0,EFM8BB31F32I-C-5QFN32R,EM260-RTR,C8051F310-GQ,C8051F863-C-GS,CPT112S-A02-GMR,EFM32LG230F64G-F-QFN64R,RS14100-SB00110F-B00-X16,SI4362-B1B-FM,SI4421-A1-FT,EFM8SB10F2G-A-QFN20R,EFR32FG12P432F1024GM48-C,EFM32LG230F256G-E-QFN64,C8051F854-C-GM,C8051F921-G-GMR,C8051F365-C-GMR,SI1141-A11-GMR,WF200DR,C8051F369-C-GM,SIM3C156-B-GMR,ZGM130S037HGN2R,SIM3U144-B-GM,SI1082-A-GM,EFM8BB31F32G-C-QSOP24,EFM32PG1B200F128GM48-C0,EFR32MG21A020F768IM32-BR,EFM8UB31F40G-A-QFN24R,C8051F901-D-GMR,EFR32BG1P233F256GM48-C0R,EFM8BB31F64G-C-QFP32,EFR32BG12P232F512GM68-CR,SI1171I3-B2-GM,C8051F502-IM,C8051F575-IM,SI7023-A20-YM1R,EFR32FG1V032F128GM32-C0R,C8051F502-IQ,EFM8LB11F32E-B-QFN24R,EFR32MG12P432F1024GM68-CR,EFM32LG280F256G-F-QFP100,EFR32FG13P231F512GM48-DR,EZR32WG230F128R60G-C0R,C8051F921-G-GM,SI1063-A-GMR,EFM32LG880F256G-F-QFP100,SI1141-A11-GM,EFR32FG12P231F1024GM68-CR,EZR32LG230F128R63G-C0R,EFM8LB10F16ES1-C-QFN24R,EFM8BB31F64I-B-QFP32,EFR32FG12P431F1024IM48-C,C8051F587-IM,C8051F320-GQR,EFR32BG13P632F512GM48-D,EFR32BG13P632F512GM48-C,C8051F587-IQ,EFR32FG12P433F1024GM48-CR,SI7007-A20-IM1R,EFM32GG11B820F2048GQ100-B,EFM8BB31F64I-D-QFN32R,C8051F530-C-ATR,C8051F531A-IT,EFR32BG12P232F1024GM48-C,EFM32TG108F16-D-QFN24R,SI1005-E-GM2R,EFM32GG11B310F2048GQ100-BR,EFM32TG110F32-QFN24T,C8051F043-GQ,EFM32JG1B100F128GM32-C0R,EFR32MG12P132F1024GM48-CR,SI4356-B1A-FMR,EZR32HG320F64R69G-C0R,C8051F531A-IM,SIM3C144-B-GM,EFR32MG12P232F1024GM48-BR,EFM32GG940F1024G-E-QFN64,EFM32JG1B200F128GM48-C0,SI7201-B-05-IV,SI1064-A-GM,EFR32FG14P231F128GM32-BR,EFM32GG12B130F512GM64-A,SI1175I3-B2-GMR,C8051F300-GMR,C8051F041-GQR,SI7204-B-00-FVR,EFR32MG12P232F1024GM48-CR,EFM8UB10F16G-C-QFN28,EZR32HG220F64R67G-C0,SI4420-D1-FT,EFM8BB31F32I-D-4QFN24R,SI7201-B-86-IV,EFM8BB31F64G-C-QFN24R,EFM8UB10F16G-C-QFN20,EFM8BB31F32G-B-QFN32,C8051F985-C-GM,C8051F981-C-GMR,EM357-RT,EFM32GG995F1024G-E-BGA120R,C8051F544-IQR,EFR32FG1P131F256GM48-C0R,EFM32LG942F256G-F-QFP64R,EFM8BB31F32A-C-5QFN32R,C8051F802-GMR,C8051T614-GQR,RS9116W-SB00-B00-X23,SI7201-B-30-IV,RS9116W-SB00-B00-X24,EFR32MG13P732F512IM32-D,EFM8SB10F2G-A-QFN20,EFR32MG13P732F512IM32-C,C8051T631-GM,EFM8LB12F64ES1-B-QFN32R,EFM8BB31F32G-B-QFN24,SI7005-B-GM1R,EM3585-RTR,EFM32ZG210F32-QFN32,C8051F334-GM,EFM8BB31F16I-B-5QFN32,C8051F122-GQR,C8051F580-AQ,C8051F542-IMR,SI7210-B-01-IV,C8051F580-AM,EFM32GG230F512G-E-QFN64R,EFM32HG110F64G-C-QFN24,C8051F585-IMR,EFR32BG21A010F1024IM32-BR,C8051F990-C-GMR,C8051F508-IMR,C8051F302-GM,SI7211-B-00-IBR,SI1142-M01-GM,EFM8LB12F64ES0-B-QFN24R,C8051F800-GMR,EFM32ZG110F32-QFN24T,EFR32FG23A010F256GM40-BR,EZR32WG230F128R67G-C0R,SI4010-C2-GSR,C8051F302-GS,C8051F531A-IMR,EZR32HG220F32R61G-B0R,C8051F986-C-GMR,EZR32LG330F128R68G-C0,SI4012-C1001GT,EFM8LB12F64E-C-QFN24R,EFM8BB52F32I-C-QFN32R,SIM3C144-B-GMR,EFM8UB20F32G-B-QFP48,EFM32LG232F128G-F-QFP64,C8051F067-GQ,EFR32FG13P231F512GM32-D,EFR32FG13P231F512GM32-C,EFM32TG11B340F64GM64-B,MGM13S02F512GA-V3R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2201181164 Drop shipment site change at ASE Chung-Li

型号- C8051F521A-IM,C8051F974-A-GMR,C8051F381-GQR,RS9116N-SB00-B00-B00,SI7020-A20-GM,C8051F920-G-GM,C8051F023-GQ,C8051F920-G-GQ,C8051F587-AM,EFM8BB31F64G-D-QFP32R,EFM8LB11F32ES0-C-QFN24R,EFM8SB20F32G-B-QFN32,C8051F332-GM,C8051F531-C-IM,EZR32HG220F64R61G-C0R,C8051F310-GQR,C8051F011-GQ,C8051F390-A-GMR,C8051F362-C-GM,C8051F132-GQR,C8051F531-C-IT,EFM32GG12B330F512GQ100-AR,C8051F541-IMR,C8051F975-A-GM,CP2201-GMR,EFM32GG11B520F2048GQ100-BR,C8051F394-A-GM,C8051T616-GM,EFM32G840F64G-E-QFN64,EFM8LB11F32ES0-C-QFN24,CPT112S-A02-GU,EFM32GG230F1024G-E-QFN64R,C8051F125-GQ,EFM8UB20F64G-B-QFP48R,EZR32HG320F64R68G-C0R,C8051F585-IM,C8051F230-GQ,CPT112S-A02-GM,C8051F585-IQ,EFM32G230F32G-E-QFN64R,EFM8BB10F2G-A-QFN20,C8051F553-AMR,EM3598-RT,C8051F801-GU,EFM8BB10F2I-A-QFN20R,C8051F124-GQR,SI7054-A20-IMR,C8051F060-GQR,C8051F802-GUR,EFM8BB21F16A-C-QFN20R,EFM8LB12F32ES0-C-QFN24,C8051F043-GQR,SI4461-B1B-FM,EFM32WG880F256-B-QFP100,SI1182-B3-GMR,SI7051-A20-IMR,SI4355-B1A-FM,C8051T604-GSR,C8051F045-GQ,C8051F320-GQ,EFM8LB11F16ES0-C-QFN24R,EFM8SB20F32G-B-QFN24,EZR32HG220F64R69G-C0,EZR32HG320F64R69G-C0,C8051F530A-ITR,EFM32ZG210F32-B-QFN32,C8051F339-GMR,C8051F360-C-GQR,EFM32GG380F512G-E-QFP100R,SI1102-A-GMR,C8051F38C-GQ,EFM32G280F128G-E-QFP100R,SI1012-C-GM2,C8051F133-GQR,C8051F380-GQR,EFM8SB20F32G-B-QFP32,C8051F230-GQR,SI1152-AB00-GM,C8051F38C-GM,EFM8SB20F32G-B-QFN24R,SI1175E2-B2-GM,CF326-SX0261GM,EM3587-RTR,C8051F302-GMR,EFM8SB10F4G-A-QFN20,CP2615-A02-GM,C8051F563-IM,SI4060-B1B-FM,SI4055-C2A-GM,EZR32HG220F64R69G-C0R,C8051F047-GQ,C8051F531A-ITR,C8051F001-GQ,C8051F206-GQR,C8051F563-IQ,EFM32GG12B510F1024IQ100-A,CPT213B-A01-GM,CP2103-GMR,EM260-RTR,EFR32MG21B020F768IM32-BR,C8051F310-GQ,EFM32G880F128G-E-QFP100R,EZR32HG220F64R68G-C0,CPT112S-A02-GMR,C8051F850-C-IMR,EFM32LG230F64G-F-QFN64R,EFM8SB20F64G-B-QFN32R,RS14100-SB00110F-B00-X16,EFM32GG980F1024G-E-QFP100,SI4362-B1B-FM,C8051F301-GMR,EFM8SB10F2G-A-QFN20R,EFM32ZG210F16-B-QFN32,C8051F854-C-GM,C8051F921-G-GMR,C8051F365-C-GMR,SI1141-A11-GMR,C8051F369-C-GM,SI1082-A-GM,C8051F389-B-GM,C8051F389-B-GQ,EFM8UB30F40G-A-QFN20R,EFR32MG21A020F768IM32-BR,SI1000-E-GM2R,C8051F901-D-GMR,SI4063-C2A-GM,C8051F344-GQ,C8051F123-GQR,SI1171I3-B2-GM,EFM32LG230F256G-F-QFN64,C8051F502-IM,C8051F575-IM,SI7023-A20-YM1R,C8051F502-IQ,C8051F550-IMR,EFM32LG280F256G-F-QFP100,SI7023-A20-IM1,C8051F921-G-GM,SI1063-A-GMR,C8051F312-GQ,EFM32LG880F64G-F-QFP100R,EFM32LG880F256G-F-QFP100,SI1141-A11-GM,EFM8LB10F16ES1-C-QFN24R,C8051F587-IM,C8051F320-GQR,C8051F587-IQ,C8051F586-IMR,SI7007-A20-IM1R,C8051F587-IQR,C8051F500-IQ,C8051F500-IM,SI1147-A10-GMR,EFM32GG11B820F2048GQ100-B,C8051F530-C-ATR,C8051F363-C-GQ,C8051F531A-IT,SI1003-E-GM2R,SI4055-B1A-FM,SI1005-E-GM2R,EFM32GG11B310F2048GQ100-BR,C8051F043-GQ,CP2200-GQR,C8051F507-IMR,SI4356-B1A-FMR,EZR32HG320F64R69G-C0R,C8051F531A-IM,EFM32GG940F1024G-E-QFN64,SI1064-A-GM,EFR32BG21A020F1024IM32-BR,SI1175I3-B2-GMR,SI1081-A-GM,C8051F300-GM,C8051F300-GMR,C8051F855-C-GM,SI4461-C2A-GMR,EZR32HG220F64R60G-C0R,C8051F300-GS,EZR32HG220F64R67G-C0,EZR32HG320F64R67G-C0,EFM8UB10F16G-C-QFN20,C8051F981-C-GMR,EM357-RT,C8051F544-IQR,C8051F065-GQ,EFM32LG230F128G-F-QFN64R,C8051F802-GMR,C8051T614-GQR,C8051F220-GQR,EFM8UB20F32G-B-QFN32,C8051F366-C-GQR,C8051F982-C-GMR,EFM8SB10F2G-A-QFN20,C8051F565-IQ,C8051T631-GM,EFR32BG21A010F768IM32-B,C8051T600-GS,EM3585-RTR,C8051F122-GQR,C8051F580-AQ,C8051F542-IMR,C8051T600-GM,C8051F803-GS,C8051F580-AM,EFM32GG230F512G-E-QFN64R,SI4355-C2A-GMR,C8051F530A-IT,C8051F585-IMR,EFR32BG21A010F1024IM32-BR,C8051F990-C-GMR,C8051F508-IMR,C8051F302-GM,C8051F127-GQ,SI1142-M01-GM,EFM32TG840F32-D-QFN64R,C8051F530A-IM,C8051F800-GMR,C8051F586-IQR,SI4010-C2-GSR,C8051F302-GS,EFM8SB20F16G-B-QFN24,C8051F531A-IMR,C8051F986-C-GMR,SI4012-C1001GT,SI4464-B1B-FM,EFM8LB12F64E-C-QFN24R,CP2104-F03-GM,EFM8UB20F32G-B-QFP48,SI1151-AB09-GMR,C8051F067-GQ,SI1064-A-GMR,EFM32GG330F512G-E-QFN64,EFM32LG980F128G-F-QFP100R,C8051F510-IM,SI4010-C2-GTR,C8051F300-GSR,EFM32LG840F256G-F-QFN64,C8051F336-GM,C8051F381-GM,CP2200-GQ,EFR32MG21A020F512IM32-B,EM341-RTR,C8051F121-GQR,C8051F589-IM,SI7020-A20-IM,EFM32LG360F256G-F-CSP81R,C8051F381-GQ,EM3588-RT,C8051F346-GQ,C8051F021-GQ,EFM32GG11B320F2048GQ100-BR,EFM32TG230F32-D-QFN64R,C8051F220-GQ,CP2105P0950FGM,SI4468-A2A-IM,EFM32ZG210F32-B-QFN32R,SI7023-A20-IMR,C8051F34A-GQ,C8051F975-A-GMR,CPT007B-A02-GM,C8051F544-IQ,C8051F524A-IM,C8051F530A-AMR,C8051F221-GQR,C8051F34A-GM,SI1181-B3-GM,C8051T326-GMR,EFM32G880F128G-E-QFP100,EFM8UB20F32G-B-QFP32,SI1144-AAGX-GMR,C8051F569-AM,EFR32BG21B010F768IM32-B,EFM32G200F16G-E-QFN32R,EZR32HG320F32R63G-C0R,EFM8BB10F4I-A-QFN20,EFM32G280F128G-E-QFP100,CPT007B-A02-GU,SI7053-A20-IM,C8051F531-C-AMR,C8051F585-IQR,C8051F313-GMR,C8051F321-GMR,C8051F991-C-GM,SI7021-A20-GM1,EFR32BG21B020F768IM32-B,SI1142-A11-GM,EFM32GG12B310F1024GQ100-AR,C8051F132-GQ,EFR32MG21B010F1024IM32-BR,SI1060-A-GMR,C8051F314-GQR,EFR32MG21A020F512IM32-BR,C8051F120-GQ,SI4464-B1B-FMR,C8051F396-A-GM,C8051F553-IMR,C8051T622-GM,SI4467-A2A-IM,C8051F063-GQ,SI7021-A20-GMR,C8051F567-IQ,SI1151-AB00-GM,EM357-ZRT,C8051F

产品变更通知及停产信息 - SILICON LABS - Jan 18, 2022 PDF 英文下载

2112141154 Minimum Order Quantity (MOQ) Increase for all IC and SiP Module Products

型号- C8051F521A-IM,SI1061-A-GM,SI1001-E-GM2,ZGM130S037HGN2,C8051F38A-B-GQ,SI7020-A20-GM,C8051F000-GQ,C8051F023-GQ,C8051F920-G-GM,C8051F988-C-GU,C8051F321-GM,C8051F046-GQ,C8051F920-G-GQ,C8051F587-AM,C8051F503-IM,SI7201-B-84-IV,C8051F967-B-GM,C8051F503-IQ,C8051F332-GM,C8051F531-C-IM,C8051F011-GQ,WFM200S022XNN3,C8051F902-D-GU,SI7211-B-00-IV,WFM200S022XNN2,C8051F802-GM,C8051F362-C-GM,SI4022-A0-FT,C8051F531-C-IT,BGM220SC22HNA2,BGX13S22GA-V31,C8051F584-IM,C8051F584-IQ,C8051F975-A-GM,C8051F394-A-GM,SI7005-B-GM1,EFP0108GM20-E,C8051T616-GM,C8051F206-GQ,C8051F802-GU,EFP0108GM20-D,EM3597-RT,C8051F012-GQ,SI4463-C2A-GM,C8051F413-GM,CPT112S-A02-GU,WF200D,WF200C,C8051F125-GQ,C8051F343-GQ,C8051F585-IM,C8051F230-GQ,CPT112S-A02-GM,C8051F585-IQ,SI7210-B-11-IM2,EM3598-RT,C8051F801-GU,SI1034-B-GM3,SIM3C164-B-GM,SI4461-B1B-FM,SI4355-B1A-FM,C8051F345-GQ,C8051F045-GQ,C8051F320-GQ,C8051F398-A-GM,SI7201-B-83-IV,SI4432-B1-FM,SI7022-A20-IM1,SI7201-B-04-IV,SI4438-C2A-GM,SI4455-B1A-FM,C8051F996-C-GM,C8051F38C-GQ,C8051F911-D-GU,SI1012-C-GM2,C8051F996-C-GU,C8051F38C-GM,SI1152-AB00-GM,CF326-SX0261GM,SI1175E2-B2-GM,C8051F911-D-GM,C8051F963-B-GM,C8051F981-C-GM,CP2615-A02-GM,C8051F124-GQ,SI7217-B-01-IV,C8051F563-IM,SI4060-B1B-FM,SI4055-C2A-GM,SI7210-B-12-IM2,C8051F047-GQ,C8051F527A-IM,C8051F001-GQ,C8051F812-GM,SI4421-A0-FT,C8051F563-IQ,CPT213B-A01-GM,C8051F311-GM,C8051F972-A-GM,SI7054-A20-IM,SIM3C146-B-GM,C8051F547-IM,CP2615-A01-GM,SD3503A-CNE3,C8051F310-GQ,SI7211-B-00-IB,C8051F863-C-GS,SI4362-B1B-FM,SI4421-A1-FT,C8051F002-GQ,C8051F854-C-GM,C8051F369-C-GM,C8051F333-GM,SIM3U144-B-GM,SI1082-A-GM,C8051F389-B-GM,EM3585-RT,C8051F013-GQ,C8051F389-B-GQ,C8051F800-GM,SIM3C156-B-GM,SI4063-C2A-GM,C8051F344-GQ,C8051F550-AM,C8051F586-IM,C8051F586-IQ,SI1171I3-B2-GM,C8051F502-IM,C8051F575-IM,C8051F502-IQ,SI7201-B-03-IV,C8051F800-GU,C8051F980-C-GM,SI7023-A20-IM1,C8051F921-G-GM,C8051F312-GQ,C8051F066-GQ,SI1141-A11-GM,SI1143-A11-GM,C8051F587-IM,SI7021-A20-GM,C8051F587-IQ,SI7023-A20-YM1,C8051F335-GM,C8051F500-IQ,SI7204-B-00-FV,SI1153-AB9X-GM,C8051F500-IM,CP2105-F01-GM,C8051F301-GM,EM346-RT,BGM121A256V2,EM250-RT,C8051F363-C-GQ,C8051F347-GQ,C8051F301-GS,C8051F531A-IT,SI4055-B1A-FM,C8051F043-GQ,C8051F531A-IM,SI7210-B-13-IM2,SIM3C144-B-GM,SI7201-B-05-IV,C8051F34B-GQ,C8051F501-IQ,SI1064-A-GM,SI1133-AA00-GM,C8051F501-IM,SIM3C154-B-GM,C8051F300-GM,SI1081-A-GM,C8051F855-C-GM,SI7021-A20-IM,C8051F300-GS,SI4420-D1-FT,SI7201-B-86-IV,C8051F862-C-GS,EM357-RT,C8051F804-GS,C8051F065-GQ,SI4032-B1-FM,SI1014-C-GM2,C8051F382-GQ,SI7201-B-30-IV,SI7201-B-41-IV,CP2400-GM,SI1182-B4-GM,WFM200SS22XNA2,C8051F395-A-GM,C8051F565-IQ,WFM200SS22XNA3,C8051F221-GQ,C8051T631-GM,C8051F020-GQ,C8051T600-GS,CP2400-GQ,C8051F580-AQ,C8051F826-GS,C8051T600-GM,C8051F803-GS,SI7210-B-01-IV,C8051F010-GQ,C8051F580-AM,C8051F530A-IT,C8051F852-C-GU,C8051F545-IQ,C8051F127-GQ,C8051F302-GM,SI1142-M01-GM,C8051F852-C-GM,SI1141-M01-GM,BGM220SC12WGA2,C8051F530A-IM,SI7210-B-14-IM2,SIM3C134-B-GM,SI1084-A-GM,C8051F302-GS,C8051T632-GM,BGM123A256V2,SI4012-C1001GT,C8051F365-C-GM,SI4464-B1B-FM,CP2104-F03-GM,C8051F588-IM,C8051F850-C-GM,C8051F960-B-GQ,CP2201-GM,SI1021-B-GM3,C8051F067-GQ,C8051F380-GQ,CP2110-F01-GM,EM3587-RT,C8051F510-IM,C8051F022-GQ,SI4356-B1A-FM,SI7201-B-85-IV,SI4031-B1-FM,EM3555-RT,C8051F336-GM,C8051F381-GM,CP2200-GQ,C8051F860-C-IS,C8051F397-A-GM,C8051F589-IM,SI7020-A20-IM,C8051F965-B-GM,C8051F381-GQ,EM3588-RT,C8051F346-GQ,C8051F850-C-GU,C8051F021-GQ,C8051F511-IM,SIM3U166-B-GM,C8051F044-GQ,C8051F220-GQ,CP2105P0950FGM,C8051F581-AQ,SI7201-B-40-IV,SI7201-B-06-IV,C8051F970-A-GM,SI4468-A2A-IM,SI7210-B-00-IV,C8051F34A-GQ,CPT212B-A01-GM,CPT007B-A02-GM,C8051F390-A-GM,C8051F544-IQ,C8051F34A-GM,C8051F524A-IM,C8051F850-C-IM,C8051F931-G-GM,SI1181-B3-GM,C8051F126-GQ,SIM3U156-B-GM,C8051F231-GQ,SI7203-B-00-FV,C8051F850-C-IU,C8051F814-GU,C8051F860-C-GS,C8051T610-GQ,SI7005-B-FM1,SI4010-C200RGT,SI4463-C2A-AM,C8051F313-GM,CPT007B-A02-GU,SI7053-A20-IM,SI4021-A1-FT,C8051F533-C-IT,C8051F991-C-GM,SI7021-A20-GM1,EFP0102GM20-E,SI1142-A11-GM,C8051F132-GQ,C8051F350-GQ,C8051F555-IM,SI7210-B-15-IM2,SI7201-B-08-IV,C8051F120-GQ,C8051F384-GQ,C8051F396-A-GM,SI4467-A2A-IM,SI7210-B-02-IV,C8051F063-GQ,C8051F567-IQ,SI1151-AB00-GM,SI4010-C2-GT,EM357-ZRT,SI4010-C2-GS,C8051F567-IM,SI7201-B-32-IV,C8051F326-GM,C8051F508-IM,C8051F360-C-GQ,C8051F861-C-GS,CP2402-GM,BGX220S22HNA21,C8051F005-GQ,C8051F590-IM,CP2130-F01-GM,C8051F315-GM,C8051F543-IM,C8051F314-GQ,C8051F385-GM,SI7022-A20-IM,C8051F385-GQ,C8051F392-A-GM,SI4063-B1B-FM,C8051F509-IM,SI7005-B-FM,SI7007-A20-IM,EFP0107GM20-D,SI1080-A-GM,EFP0107GM20-E,CP2403-GM,C8051F521-C-IM,C8051F006-GQ,C8051F337-GM,SI7201-B-21-IV,SI1002-E-GM2,SI4320-J1-FT1,SIM3U167-B-GM,C8051F040-GQ,SI7202-B-01-IV,C8051F017-GQ,EM3581-RT,C8051F133-GQ,SI4362-C2A-GM,SI4355-C2A-GM,SI1102-A-GM,C8051F582-AM,C8051F367-C-GM,C8051F364-C-GQ,EM357-IRT,SI7201-B-07-IV,C8051F351-GM,C8051F383-GM,EFP0109GM20-D,EFP0109GM20-E,SIM3U154-B-GM,C8051F580-IQ,SI7201-B-10-IV,SI1083-A-GM,C8051F580-IM,C8051F348-GQ,C8051F568-IM,C8051F383-GQ,CP2401-GQ,C8051F961-B-GM,S

产品变更通知及停产信息 - SILICON LABS - Dec 14, 2021 PDF 英文下载

TouchXpress™ Family CPT212B Data Sheet

型号- CPT212B-A01-GMR,CPT212B-A01-GM,CPT212B

数据手册 - SILICON LABS - Rev. 1.1 - June 30th, 2017 PDF 英文下载查看更多版本

2201251170 Addendum to 2112141154 MOQ Increase for all IC and SiP Module Products（2022-01-11-1170）

型号- 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

产品变更通知及停产信息 - SILICON LABS - Jan 11, 2022 PDF 英文下载

【经验】12 通道电容式触摸控制器CPT112S评估板操作使用说明

CPT112S是Silicon Labs公司推出的一款 12 通道电容式触摸控制器。采用 QSOP24 封装，其设有一个可重新配置的 I2C 接口。 CPT112S TouchXpress 评估板设有 12 个电容式感应垫、一个可选的 4 通道滑动条以及一个用于触控反馈的蜂鸣器。该板可通过扩展头或拆分引脚连接至主处理器，并使用 USB 连接器连接至 PC。本文基于该连接方法，对其操作进行说明。

新产品发布时间 : 2018-06-19

CPT213B-A01-GM Schematic Footprints and Symbols

型号- CPT213B-A01-GM

CAD模型库 - SILICON LABS - 2023/10/26 BXL 英文下载

使用触摸芯片CPT112S demo进行触摸测试时，发现灵敏度非常高，手还没接触到触摸按键就已经触发了按键，是什么原因？怎么处理？

由于原厂demo默认设置的active值比较低，而且demo的触摸信噪比非常高，当手接近触摸按键的时候会引起触摸值的明显变化，如果active值过低，则会触发按键时间。所以需要使用capactive sense profiler工具对demo的测试，根据触摸值曲线来对触摸delta值、active以及inactive值进行调整，并将active值设置到可靠触摸下的触摸值增量，这样就可以降低误触的概率，如有必要可以增加去抖次数来防止误触事件。

技术问答发布时间 : 2017-05-05