參數(shù)資料
型號： TSC2302
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
文件頁數(shù)： 28/81頁
文件大?。?/td> 1211K
代理商： TSC2302
www.ti.com
TSC2302
SLAS394–JULY 2003
Bits [3:2] — DL1, DL0
Reference Power-Up Delay. When the internal reference is powered up, a finite amount of time is required for
the reference to settle. If measurements are made before the reference has settled, these measurements are in
error. These bits allow for a delay time for measurements to be made after the reference powers up, thereby
assuring that the reference has settled. Longer delays are necessary depending upon the capacitance present at
the VREFIN pin (see Typical Curves). The delays are shown in Table 13. The default state for these bits is 00,
selecting a 0 microsecond delay. These bits are the same whether reading or writing.
Table 13. Reference Power-Up Delay Settings.
DL1
DL0
DELAY TIME
0
0
0 μs (default)
0
1
100 μs
1
0
500 μs
1
1
1000 μs
Bit 1 —PDN
Reference Power Down. If a 1 is written to this bit, the internal reference are powered down between
conversions. If this bit is a zero, the internal reference is powered at all times. The default state is to power down
the internal reference, so this bit will be a 1. This bit is the same whether reading or writing.
Table 14. PDN Bit Operation
PDN
VALUE
DESCRIPTION
0
Internal reference is powered at all times
1
Internal reference is powered down between conversions. (default)
Note that the PDN bit, in concert with the INT bit, creates a few possibilities for reference behavior. These are
detailed in Table 15.
Table 15. Reference Behavior Possibilities
INT
PDN
REFERENCE BEHAVIOR
0
0
External reference used, internal reference powered down.
0
1
External reference used, internal reference powered down.
1
0
Internal reference used, always powered up
1
1
Internal reference used, powers up during conversions and then powers down.
Bit 0 — RFV
Reference Voltage Control. This bit selects the internal reference voltage, either 1.2 V or 2.5 V. The default value
is 1.2 V. This bit is the same whether reading or writing.
Table 16. RFV Bit Operation
RFV
VALUE
DESCRIPTION
0
1.2-V reference voltage (default)
1
2.5-V reference voltage
28
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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
TSC2303IZQZ 制造商:Texas Instruments 功能描述:
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