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參數資料
| 型號： | TSC2003IPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁數： | 9/28頁 |
| 文件大小： | 560K |
| 代理商： | TSC2003IPWRQ1 |
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Pressure Measurement
R
TOUCH
=R
X-Plate
Z
2
Z
1
– 1
X-Position
4096
(2)
R
X-Position
4096
Z
–1 – R
Y-Position
4096
TOUCH
X Plate
1
Y Plate
=
1–
(3)
X-Position
Measure X-Position
Measure Z
1
-Position
Touch
X+
Y+
X–
Y–
Z
1
-Position
Touch
X+
Y+
Y–
X–
Measure Z
2
-Position
Z
2
-Position
Touch
X+
Y+
Y–
X–
www.ti.com ........................................................................................................................................................................................... SBAS454 – DECEMBER 2008
Measuring touch pressure can also be done with the TSC2003. To determine pen or finger touch, the pressure of
the "touch" needs to be determined. Generally, it is not necessary to have high accuracy for this test, therefore,
the 8-bit resolution mode is recommended. However, calculations are shown with the 12-bit resolution mode.
There are several different ways of performing this measurement, and the TSC2003 supports two methods.
The first method requires knowing the X-Plate resistance, measurement of the X-Position, and two additional
cross-panel measurements (Z2 and Z1) of the touch screen, as shown in Figure 10. Use Equation 2 to calculate
the touch resistance:
The second method requires knowing both the X-Plate and Y-Plate resistance, measurement of X-Position and
Y-Position, and Z1. Equation 3 calculates the touch resistance using the second method:
Figure 10. Pressure Measurement Block Diagrams
Copyright 2008, Texas Instruments Incorporated
17
Product Folder Link(s): TSC2003-Q1
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| TSC2003I | 3-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TSC2003IR | 3-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| TSC2008IRGVR | SPECIALTY CONSUMER CIRCUIT, PQCC16 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TSC2003IR | 功能描述:IC TOUCH SCREEN CNTRLLR 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 觸摸屏控制器 系列:- 標準包裝:96 系列:- 類型:- 觸摸面板接口:- 輸入數/鍵:- 分辨率（位）:- 評估套件:* 數據接口:- 數據速率/采樣率 (SPS，BPS):- 電壓基準:- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| TSC2003IZQCR | 功能描述:觸摸屏轉換器和控制器 4-wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率: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 |
| TSC2003-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:I2C TOUCH SCREEN CONTROLLER |
| TSC2004 | 制造商:BB 制造商全稱:BB 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with I2C⑩ Interface |
| TSC2004_12 | 制造商:BB 制造商全稱:BB 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire |
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