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參數(shù)資料
| 型號： | TSC2200EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | TSC2200 Touch Screen Controller Evaluation Module(TSC2200觸摸屏控制器評估模塊) |
| 中文描述： | TSC2200觸摸屏控制器評估模塊（TSC2200觸摸屏控制器評估模塊） |
| 文件頁數(shù)： | 34/45頁 |
| 文件大?。?/td> | 468K |
| 代理商： | TSC2200EVM |
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Operation
3-16
operation of this program, since only 1MHz or 2MHz clock rates will allow 12-bit
resolution to be chosen.
Panel Voltage Stabilization Time
This is the time that the TSC2200 allows for the touch screen to settle after turning the
drivers on.
Precharge Time
Sense Time
These two parameters are the time allowed to precharge the touch panel capacitance
and then sense to see if the screen is touched. For more details on these parameters,
refer to the TSC2200 data sheet.
Averaging
Several readings may be taken and then averaged to give a single result. No
averaging can be chosen, or 4, 8, or 16 readings can be averaged.
Note that these settings apply to all operations of the A/D converter, not just the touch
screen operations. Thus, resolution and averaging can be changed to increase
accuracy in the data acquisition functions.
3.4.2.2 Reference Section
The touch screen function is always performed using a ratiometric mode; for all other A/D
functions, a reference voltage is needed for the A/D converter. Figure 4 shows this
section with the TSC2200's internal reference chosen. This reference voltage can be set
to either 1.25V or 2.5V.
The internal reference powers down between conversions, to save power. Using the
Powered at all times
checkbox, this can be overidden and the reference will not power
down. If the reference is allowed to power down, the TSC2200 then must allow a delay
time for the reference to power up when a conversion is to take place. This delay time can
be set using the slider in this section.
If an external reference is to be used, it may be selected as shown in Figure 5. The value
of the external reference should be entered in the text box shown.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TSC2200IPW | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2200IPWG4 | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2200IPWR | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2200IPWRG4 | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2200IRHB | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/12-Bit 125KHz ADC & Key Ifc RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
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