參數(shù)資料
型號(hào)： UCB1400
廠商： NXP Semiconductors N.V.
元件分類： Codec
英文描述： Audio codec with touch screen controller and power management monitor
中文描述： 音頻編解碼器與觸摸屏控制器和電源管理監(jiān)控
文件頁(yè)數(shù)： 27/63頁(yè)
文件大?。?/td> 674K
代理商： UCB1400
Philips Semiconductors
UCB1400
Audio codec with touch screen controller
and power management monitor
Product data
Rev. 02 — 21 June 2002
27 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
10.2.2
Pressure measurement
The pressure applied to the touch screen can be determined. In fact, the contact
resistance between the X and Y plates is measured, which is a good indication of the
size of the pressed spot and the applied pressure. A soft stylus, e.g., a finger, leads to
a rather large contact area between the two plates when a large pressure is applied.
A hard stylus, e.g., a pen, leads to less variation in measured contact resistance
since the contact area is rather small.
One plate is biased at one or both terminals during this pressure measurement,
whereas the other plate is grounded, again on one or both terminals. The current
flowing through the touch screen is a direct indication for the resistance between both
plates. A compensation for the series resistance, formed by the touch screen plates
and the internal 1 k
resistance of the UCB1400 will improve the accuracy of this
measurement.
Fig 19. Touch screen setup for pressure-1 measurement (see
Table 9
).
TSPY
TSMX
TSPX
VBIAS
TO ADC
TSMY
TO ADC
TSPY
TSPX
VBIAS
TSMY
TSMX
TOUCH
R
Y1
R
Y2
R
t
R
X1
R
X2
SN00248
VBIAS
1 k
1 k
VBIAS
相關(guān)PDF資料
PDF描述
UCB1500 PCI to AC97 bridge/host controller
UCC1913D Very low drop voltage regulators with inhibit
UCC1913DTR Analog IC
UCC1913J Very low drop voltage regulators with inhibit
UCC1913N Very low drop voltage regulators with inhibit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UCB1400BE 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
UCB1400BE,128 功能描述:接口—CODEC AUDIO CODEC WITH TOUCHSCREEN RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
UCB1400BE,151 功能描述:接口—CODEC AUDIO CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
UCB1400BE,157 功能描述:接口—CODEC DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
UCB1400BEFE 功能描述:IC AUDIO CODEC W/TCH SCRN 48LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*