参数资料
| 型号： | MAX1234ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/44页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR TOUCH 28-TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1，4 x 4 小键盘 |
| 分辨率（位）： | 8，10，12 b |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 50k |
| 电压基准： | 内部 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
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MAX1233/MAX1234
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
22
______________________________________________________________________________________
A/D3
A/D2
A/D1
A/D0
FUNCTION
00
Configures the ADC reference as selected by RES [1:0] bits as shown in Table 13. No measurement
is performed.
0
1
Measures X/Y touch position and returns results to the X and Y data registers.
00
10
Measures X/Y touch position and Z1/ Z2 touch pressure and returns results to the X, Y, Z1, and Z2
data registers.
0
1
Measures X touch position and returns results to the X data register.
0
1
0
Measures Y touch position and returns results to the Y data register.
0
1
0
1
Measures Z1/Z2 touch pressure and returns results to the Z1 and Z2 data register.
0
1
0
Measures Battery Input 1 through a 4:1 divider and returns results to the BAT1 data register.
0
1
Measures Battery Input 2 through a 4:1 divider and returns results to the BAT2 data register.
1
0
Measures Auxiliary Input 1 and returns results to the AUX1 data register.
1
0
1
Measures Auxiliary Input 2 and returns results to the AUX2 data register.
1
0
1
0
Measures temperature (single ended) and returns results to the TEMP1 data register.
10
11
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
0
Measures temperature (differential) and returns results to the TEMP1 and TEMP2 data registers.
1
0
1
Turns on Y+, Y- drivers. No measurement is performed.
1
0
Turns on X+, X- drivers. No measurement is performed.
1
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* (s)
0
8 bit
31
0
1
8 bit
31
1
0
10 bit
37
1
12 bit
44
Table 8. ADC Resolution Control
*
Applicable only for temperature, battery, or auxiliary
measurements in auto power-up reference mode.
AVG1
AVG0
FUNCTION
0
No data averages (default)
0
1
4 data averages
1
0
8 data averages
1
16 data averages
Table 9. ADC Averaging Control
CNR1
CNR0
FUNCTION
00
3.5s/sample
(1.5s acquisition, 2s conversion)
01
3.5s/sample
(1.5s acquisition, 2s conversion)
10
10s/sample
(5s acquisition, 5s conversion)
11
100s/sample
(95s acquisition, 5s conversion)
Table 10. ADC Conversion Rate Control
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX1234EVKIT | 制造商:Maxim Integrated Products 功能描述:+15KV ESD-PROTECTED TOUCH-SCREEN CO - Rail/Tube |
| MAX1236EUA | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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