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參數(shù)資料
型號(hào)： TSC2046IPWR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO16
封裝： GREEN, PLASTIC, TSSOP-16
文件頁(yè)數(shù)： 2/33頁(yè)
文件大?。?/td> 774K
代理商： TSC2046IPWR
TSC2046
SBAS265G OCTOBER 2002 REVISED JANUARY 2008
www.ti.com
10
ANALOG INPUT
Figure 2 shows a block diagram of the input multiplexer on
the TSC2046, the differential input of the ADC, and the
differential reference of the converter. Table 1 and Table 2
show the relationship between the A2, A1, A0, and
SER/DFR control bits and the configuration of the TSC2046.
The control bits are provided serially via the DIN pin—see the
Digital Interface section of this data sheet for more details.
When the converter enters the hold mode, the voltage
difference between the +IN and –IN inputs (shown in
Figure 2) is captured on the internal capacitor array. The
input current into the analog inputs depends on the
conversion rate of the device. During the sample period, the
source must charge the internal sampling capacitor (typically
25pF). After the capacitor is fully charged, there is no further
input current. The rate of charge transfer from the analog
source to the converter is a function of conversion rate.
ADC
Logic
Level
Shifter
REF
+REF
+IN
IN
V
BAT
AUX
Battery
On
GND
2.5V
Reference
Ref On/Off
X+
X
+VCC
TEMP1
PENIRQ
50k
or
90k
Y+
Y
VREF
IOVDD
TEMP0
7.5k
2.5k
A2 A0
(Shown 001
B)
SER/DFR
(Shown Low)
Figure 2. Simplified Diagram of Analog Input
A2
A1
A0
VBAT
AUXIN
TEMP
Y
X+
Y+
Y-POSITION X-POSITION Z1-POSITION Z2-POSITION X-DRIVERS Y-DRIVERS
0
+IN (TEMP0)
Off
0
1
+IN
Measure
Off
On
0
1
0
+IN
Off
0
1
+IN
Measure
X, On
Y+, On
1
0
+IN
Measure
X, On
Y+, On
1
0
1
+IN
Measure
On
Off
1
0
+IN
Off
1
+IN (TEMP1)
Off
Table 1. Input Configuration (DIN), Single-Ended Reference Mode (SER/DFR high)
A2
A1
A0
+REF
REF
Y
X+
Y+
Y-POSITION
X-POSITION
Z1-POSITION
Z2-POSITION
DRIVERS
0
1
Y+
Y
+IN
Measure
Y+, Y
0
1
Y+
X
+IN
Measure
Y+, X
1
0
Y+
X
+IN
Measure
Y+, X
1
0
1
X+
X
+IN
Measure
X+, X
Table 2. Input Configuration (DIN), Differential Reference Mode (SER/DFR low)
相關(guān)PDF資料
PDF描述
TSC2046IPW SPECIALTY CONSUMER CIRCUIT, PDSO16
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TSC2046IRGVT SPECIALTY CONSUMER CIRCUIT, PQCC16
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TSC2046IZQCR-90 SPECIALTY CONSUMER CIRCUIT, PBGA48
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參數(shù)描述
TSC2046IPWRG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-Wire w/low voltage digital I/O 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
TSC2046IRGVR 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-Wire w/low voltage digital I/O 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
TSC2046IRGVRG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-Wire w/low voltage digital I/O 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
TSC2046IRGVT 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-Wire w/low voltage digital I/O 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
TSC2046IRGVTG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 4-Wire w/low voltage digital I/O 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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