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參數(shù)資料
| 型號： | TSC2008IYZGR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, BGA12 |
| 封裝： | 2 X 1.50 MM, GREEN, DSBGA-12 |
| 文件頁數(shù)： | 7/40頁 |
| 文件大小： | 1028K |
| 代理商： | TSC2008IYZGR |
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ANALOG-TO-DIGITAL CONVERTER
Converter
-REF
+REF
+IN
-IN
PenTouch
Control
Logic
A[2:0]
MedianValueFilter
and
AveragingFilter
(MAV)
V
DD
GND
TEMP1
TEMP2
R
IRQ
90kW
50kW
AUX
GND
X+
X-
Y+
Y-
VDD/REF
PENIRQ
Reference
www.ti.com.......................................................................................................................................................... SBAS406B – JUNE 2008 – REVISED MARCH 2009
Figure 24 shows the analog inputs of the TSC2008. The analog inputs (X, Y, and Z touch panel coordinates, chip
temperature and auxiliary inputs) are provided via a multiplexer to the Successive Approximation Register (SAR)
analog-to-digital converter (ADC). The A/D architecture is based on capacitive redistribution architecture, which
inherently includes a sample-and-hold function.
Figure 24. Analog Input Section (Simplified Diagram)
A unique configuration of low on-resistance switches allows an unselected A/D converter input channel to
provide power and an accompanying pin to provide ground for driving the touch panel. By maintaining a
differential input to the converter and a differential reference input architecture, it is possible to negate errors
caused by the driver switch on-resistance.
The TSC2008 uses an external voltage reference applied to the VDD/REF pin. The upper reference voltage
range is the same as the supply voltage range, which allows for simple, 1.2V to 3.6V single-supply operation of
the chip.
Copyright 2008–2009, Texas Instruments Incorporated
15
Product Folder Link(s): TSC2008
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSC2008IYZGT | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Nano-Pwr Touch Screen Controller 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 |
| TSC2008-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPIa?￠ |
| TSC2008RGVR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPI? |
| TSC2008RGVT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPI⑩ |
| TSC2008TRGVRQ1 | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 AC Nano-Pwr Touch Screen Controller 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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