th July 2011 16 www.semtech.com SX8657/SX8658 Haptics " />
參數(shù)資料
型號： SX8658IWLTRT
廠商： Semtech
文件頁數(shù)： 8/61頁
文件大?。?/td> 0K
描述： IC TOUCH SCREEN 12BIT 20QFN
標(biāo)準(zhǔn)包裝： 1
類型： 電阻式，觸感驅(qū)動(dòng)器
觸摸面板接口： 4，5 線
輸入數(shù)/鍵： 1 TSC，雨刷，鑰匙
分辨率（位）： 12 b
評估套件： *
數(shù)據(jù)接口： I²C，串行
電壓基準(zhǔn)： 內(nèi)部
電源電壓： 2.3 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 20-QFN（4x4）
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： SX8658IWLDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
16
www.semtech.com
SX8657/SX8658
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
Figure 13 – 4-wire Touchscreen Pen Detection
When using a 5-wire touchscreen, the pen detection pull-up resistor RPNDT and digital comparator continue to
monitor the X+/BR pin as in 4-wire mode. The top panel is grounded via the WIPER pin to provide the grounding
path for a screen touch event. When a touch occurs, a current path is created and will bring BR to the level
defined by the resistive divider determined by RPNDT and the sum of R1, RT and RW.
Figure 14 – 5-wire Touchscreen Pen Detection
RPNDT can be configured to 4 different values to accommodate different screen resistive values.
RPNDT should be set to a value greater than 7x(Rxtot + Rytot), it is recommended to set it to max value.
Pen detection uses a bias time of POWDLY/8 (digital comparator => less precision required vs analog
conversion). Increasing POWDLY can improve the detection on panels with high resistance.
A pen touch will set the PENSTAT bit of the RegStat register which will generate an interrupt if enabled in
RegIrqMsk.
A pen release will reset PENSTAT bit of the RegStat register which will generate an interrupt if enabled in
RegIrqMsk.
4.5
Digital Processing
The chip offers 4 types of data processing which allows the user to make trade-offs between data throughput,
power consumption and noise rejection.
The parameter FILT is used to select the filter order Nfilt. The noise rejection will be improved with a high order
to the detriment of power consumption. Each channel can be sampled up to 7 times and then processed to get a
single consolidated coordinate.
相關(guān)PDF資料
PDF描述
VE-20R-MX-F4 CONVERTER MOD DC/DC 7.5V 75W
SX8655IWLTRT IC TOUCH SCREEN 12BIT 20QFN
LDS6128NQGI8 IC SENSOR TCH PURETOUCH 40VFQFPN
LDS6104NQGI8 IC SENSOR TCH PURETOUCH 28VFQFPN
D38999/24WG39SC CONN RCPT 39POS JAM NUT W/SCKT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SX8660 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers and Analog Output
SX8660I06AULTRT 制造商:Semtech Corporation 功能描述:Touch Controller with Enhanced LED Drivers 28-Pin MLPQ-UT EP T/R 制造商:Semtech Corporation 功能描述:TOUCH SCREEN CONTROLLER 制造商:Semtech Corporation 功能描述:IC CAP BUTTON TOUCH PROXIMITY CTRL MLP 制造商:Semtech Corporation 功能描述:SX8660 Series 3.6 V Ultra Low Power Capacitive Button Touch Controller-MLPQ-UT28 制造商:Semtech Corporation 功能描述:IC, CAP BUTTON TOUCH PROXIMITY CTRL, MLPQ-28; Controller Type:Capacitive Touch Screen; IC Interface Type:I2C; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Digital IC Case Style:MLPQ; No. of Pins:28; No. of Channels:8 制造商:Semtech Corporation 功能描述:IC, CAP BUTTON TOUCH CTRL, 8 SENSOR, MLPQ-28; Controller Type:Capacitive Touch Screen; IC Interface Type:I2C; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Digital IC Case Style:MLPQ; No. of Pins:28; No. of Channels:8 制造商:SEMTECH 功能描述:Sensor
SX8660I06YULTRT 制造商:Semtech Corporation 功能描述:Sensor
SX8660I06ZULT 制造商:Semtech Corporation 功能描述:TAPE & REEL VCO
SX8660I06ZULTRT 制造商:Semtech Corporation 功能描述:8-CH CAPACITIVE TOUCH SOLUTION
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*