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参数资料
| 型号： | MAX1234EGI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC28 |
| 封装： | 5 X 5 MM, 0.80 MM HEIGHT, QFN-28 |
| 文件页数： | 22/44页 |
| 文件大小： | 706K |
| 代理商： | MAX1234EGI |
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M
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
22
______________________________________________________________________________________
A/D3
A/D2
A/D1
A/D0
FUNCTION
0
0
0
0
Configures the ADC reference as selected by RES [1:0] bits as shown in Table 13. No measurement
is performed.
0
0
0
1
Measures X/Y touch position and returns results to the X and Y data registers.
0
0
1
0
Measures X/Y touch position and Z1/ Z2 touch pressure and returns results to the X, Y, Z1, and Z2
data registers.
0
0
0
0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
Measures X touch position and returns results to the X data register.
Measures Y touch position and returns results to the Y data register.
Measures Z1/Z2 touch pressure and returns results to the Z1 and Z2 data register.
Measures Battery Input 1 and returns results to the BAT1 data register.
Measures Battery Input 2 and returns results to the BAT2 data register.
Measures Auxiliary Input 1 and returns results to the AUX1 data register.
Measures Auxiliary Input 2 and returns results to the AUX2 data register.
Measures temperature (single ended) and returns results to the TEMP1 data register.
1
0
1
1
Measures Battery Input 1, Battery Input 2, Auxiliary Input 1, Auxiliary Input 2, and temperature
(differential), and returns results to the appropriate data registers.
1
1
1
1
1
1
1
1
0
0
1
1
0
1
0
1
Measures temperature (differential) and returns results to the TEMP1 and TEMP2 data registers.
Turns on Y+, Y- drivers. No measurement is performed.
Turns on X+, X- drivers. No measurement is performed.
Turns on Y+, X- drivers. No measurement is performed.
Table 7. ADC Scan Select (Touch Screen, Battery, Auxiliary Channels, and Temperature)
RES1
RES0
ADC
RESOLUTION
INTERNALLY TIMED
REFERENCE POWER-UP
DELAY* (μs)
0
0
1
1
0
1
0
1
8 bit
8 bit
10 bit
12 bit
31
31
37
44
Table 8. ADC Resolution Control
*
Applicable only for temperature, battery, or auxiliary
measurements in auto power-up reference mode.
AVG1
0
0
1
1
AVG0
0
1
0
1
FUNCTION
No data averages (default)
4 data averages
8 data averages
16 data averages
Table 9. ADC Averaging Control
CNR1
CNR0
FUNCTION
0
0
3.5μs/sample
(1.5μs acquisition, 2μs conversion)
0
1
3.5μs/sample
(1.5μs acquisition, 2μs conversion)
1
0
10μs/sample
(5μs acquisition, 5μs conversion)
1
1
100μs/sample
(95μs acquisition, 5μs conversion)
Table 10. ADC Conversion Rate Control
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1234EGI+ | 制造商:Maxim Integrated Products 功能描述:TOUCH SCREEN CONTROLLER 28-PIN QFN EP - Rail/Tube |
| MAX1234EGI-T | 功能描述:触摸屏转换器和控制器 RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234ETI+ | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234ETI+T | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234EVC16 | 功能描述:数据转换 IC 开发工具 MAX1233/34 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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