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參數資料
| 型號： | UCB1200 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Advanced modem/audio analog front-end |
| 中文描述： | 先進的調制解調器/音頻模擬前端 |
| 文件頁數： | 13/54頁 |
| 文件大小： | 1052K |
| 代理商： | UCB1200 |
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1998 Jul 22
13
Philips Semiconductors
Product specification
Advanced modem/audio analog front-end
UCB1200
TOUCH SCREEN MEASUREMENT MODES
The UCB1200 contains an on chip interface for a 4 wire resistive touch screen. This interface supports three modes of
touch screen measurements: position, pressure and plate resistance.
POSITION MEASUREMENT
Two position measurements are needed to determine the location of the pressed spot. First an X measurement, secondly
a Y measurement. The X plate is biased during the X position measurement of the X plate and the voltage on one or both
Y terminals (TSPY, TSMY) measured. The circuit can then be represented by a potentiometer, with the TSPY and/or
TSMY electrode being the ‘wiper’. The measured voltage on the TSPY/TSMY terminal is proportional to the X position
of the pressed spot of the touch screen.
In the Y position mode the X plate and Y plate terminals are interchanged, thus the Y plate is biased while the voltage
on the TSPX and/or TSMX terminal is measured.
Fig.8 Touch screen setup for position measurement.
Vposition
tspx
tsmx
tspy
tsmy
Vtscbias
相關PDF資料 |
PDF描述 |
|---|---|
| UCB1200BE | Advanced modem/audio analog front-end |
| UCB1300 | Advanced modem/audio analog front-end |
| UCB1300BE | Advanced modem/audio analog front-end |
| UCB1400BE | Audio codec with touch screen controller and power management monitor |
| UCB1400 | Audio codec with touch screen controller and power management monitor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| UCB1200B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UCB1200B |
| UCB1200BE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced modem/audio analog front-end |
| UCB1300 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced modem/audio analog front-end |
| UCB1300BE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced modem/audio analog front-end |
| UCB1400 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio codec with touch screen controller and power management monitor |
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