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型號：	TSC2301IZQZR
廠商：	TEXAS INSTRUMENTS INC
元件分類：	消費家電
英文描述：	SPECIALTY CONSUMER CIRCUIT, PBGA120
封裝：	GREEN, PLASTIC, VFBGA-120
文件頁數(shù)：	35/95頁
文件大小：	1322K
代理商：	TSC2301IZQZR

www.ti.com

coordinate +

2.5 ms ) 2 tPVS ) tPRE ) tSNS ) 2NAVG NBITS

fconv

) 4.4 ms

(4)

coordinate +

4.75 ms ) 3 tPVS ) tPRE ) tSNS ) 4NAVG NBITS

fconv

) 4.4 ms

(5)

TSC2301

SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004

If only X and Y coordinates are to be measured, then the conversion process is complete. Figure 51 shows a

flowchart for this process. The time it takes to go through this process depends upon the selected resolution,

internal conversion clock rate, averaging selected, panel voltage stabilization time, and precharge and sense

times.

The time needed to get a complete X/Y coordinate reading can be calculated by:

where:

tcoordinate = time to complete X/Y coordinate reading;

tPVS = panel voltage stabilization time, as given in Table 11;

tPRE = precharge time, as given in Table 18;

tSNS = sense time, as given in Table 19;

NAVG = number of averages, as given in Table 9; for no averaging, NAVG = 1;

NBITS = number of bits of resolution, as given in Table 8;

fconv = A/D converter clock frequency, as given in Table 10.

If the pressure of the touch is also to be measured, the process continues after the X-conversion is complete,

measuring the Z1 and Z2 values, and placing them in the Z1 and Z2 registers. This process is illustrated in

Figure 52. As before, this process time depends upon the settings described above. The time for a complete

X/Y/Z1/Z2 coordinate reading is given by:

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
TSC2301PAG	制造商:TI 制造商全稱:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
TSC2301PAGR	制造商:TI 制造商全稱:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
TSC2302	制造商:BB 制造商全稱:BB 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
TSC2302IRGZ	功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec 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
TSC2302IRGZG4	功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec 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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