參數(shù)資料
型號(hào)： TSC2302IRGZ
元件分類： Codec
英文描述： PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
中文描述： 可編程觸摸屏控制器，立體聲編解碼器
文件頁(yè)數(shù)： 48/81頁(yè)
文件大小： 1211K
代理商： TSC2302IRGZ
www.ti.com
Start Clock
Turn off clock
Convert Temperature
Input 2
Store Temperature
Input 2 in TEMP2
Register
Power up ADC
Power Down
Reference
Is Data
Averaging
Done
N
Y
Power Down ADC
DONE
Host Writes A/D
Converter Control
Register
Power Up Reference
(Including Delay)
Set /DAV = 0
TSC2302
SLAS394–JULY 2003
TEMPERATURE INPUT 2
Figure 58. Additional Temperature Measurement for Differential Temperature Reading
OPERATION - BATTERY MEASUREMENT
An added feature of the TSC2302 is the ability to monitor the battery voltage which may be much larger than the
supply voltage of the TSC2302. An example of this is shown in Figure 59, where a battery voltage ranging up to
6 V may be regulated by a dc/dc converter or low-dropout regulator to provide a lower supply voltage to the
TSC2302. The battery voltage can vary from 0.5 V to 6 V while maintaining the voltage to the TSC2302 at a level
of 2.7 V-3.6 V. The input voltage on V
BAT1
is divided down by 4 so that a 6-V battery voltage is represented as
1.5 V to the A/D, while the input voltage on V
BAT2
is divided by 2 so that 3.0-V battery voltage is represented as
1.5 V to the A/D. If the battery voltage is low enough, the 1.2 V internal reference can be used to decrease LSB
size, potentially improving accuracy. The battery voltage on V
BAT1
must be below 4* V
REF
, and the voltage on
V
BAT2
must be below 2* V
REF
. Due to constraints of the internal switches, the input to the A/D after the voltage
divider cannot be above 1.5 V or V
REF
, whichever is lower. In order to minimize the power consumption, the
divider is only ON during the sampling of the battery input.
48
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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
TSC2302IRGZR 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
TSC2302IRGZRG4 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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TSC2303IZQZR 制造商:Texas Instruments 功能描述:
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