參數(shù)資料
型號： TSC2046IPWRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO16
封裝： GREEN, PLASTIC, TSSOP-16
文件頁數(shù)： 33/33頁
文件大小： 774K
代理商： TSC2046IPWRG4
TSC2046
SBAS265G OCTOBER 2002 REVISED JANUARY 2008
www.ti.com
9
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, +VCC = +2.7V, IOVDD = +1.8V, VREF = External +2.5V, 12-bit mode, PD0 = 0, fSAMPLE = 125kHz, and fCLK = 16 fSAMPLE = 2MHz,
unless otherwise noted.
TEMP1 DIODE VOLTAGE vs +V
CC
2.7
3.0
3.3
+V
CC (V)
T
E
MP
1
D
iode
V
o
lt
age
(m
V
)
720
718
716
714
712
710
THEORY OF OPERATION
The TSC2046 is a classic successive approximation
register (SAR) analog-to-digital converter (ADC). The
architecture is based on capacitive redistribution, which
inherently includes a sample-and-hold function. The
converter is fabricated on a 0.6
m CMOS process.
The basic operation of the TSC2046 is shown in Figure 1.
The device features an internal 2.5V reference and uses
an external clock. Operation is maintained from a single
supply of 2.7V to 5.25V. The internal reference can be
overdriven with an external, low-impedance source
between 1V and +VCC. The value of the reference voltage
directly sets the input range of the converter.
The analog input (X-, Y-, and Z-Position coordinates,
auxiliary input, battery voltage, and chip temperature)
to the converter is provided via a multiplexer. A unique
configuration of low on-resistance touch panel driver
switches allows an unselected ADC input channel to
provide power and the accompanying pin to provide
ground for an external device, such as a touch screen.
By maintaining a differential input to the converter and
a differential reference architecture, it is possible to
negate the error from each touch panel driver switch
on-resistance (if this is a source of error for the
particular measurement).
+V
CC
+V
CC
X+
Y+
X
Y
V
BAT
AUX
B1
C1
D1
E1
G2
G3
G6
E7
G4
G5
A2
A3
A4
A5
A6
B7
C7
D7
DCLK
CS
DIN
BUSY
DOUT
PENIRQ
IOVDD
V
REF
Serial/Conversion Clock
Chip Select
Serial Data In
Converter Status
Serial Data Out
+
1
∝F
to
10
∝F
(Optional)
+2.7V to +5V
TSC2046
Auxiliary Input
To Battery
Voltage
Regulator
Touch
Screen
0.1
∝F
Pen Interrupt
GND
NOTE: VFBGA package and pin names shown.
Figure 1. Basic Operation of the TSC2046
相關PDF資料
PDF描述
TSC2046IRGVRG4 SPECIALTY CONSUMER CIRCUIT, PQCC16
TSC2046IZQCT SPECIALTY CONSUMER CIRCUIT, PBGA48
TSC2046EIPWRG4 SPECIALTY CONSUMER CIRCUIT, PDSO16
TSC2046IRGVTG4 SPECIALTY CONSUMER CIRCUIT, PQCC16
TSC2046IPWG4 SPECIALTY CONSUMER CIRCUIT, PDSO16
相關代理商/技術參數(shù)
參數(shù)描述
TSC2046IRGVR 功能描述:觸摸屏轉換器和控制器 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
TSC2046IZQCR 功能描述:觸摸屏轉換器和控制器 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
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*