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| 型号： | MAX11800ETC/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/59页 |
| 文件大小： | 0K |
| 描述： | IC TOUCH SCREEN CTRLR LP 12WQFN |
| 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： | 75 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1 TSC |
| 分辨率（位）： | 12 b |
| 评估套件： | 可供 |
| 数据接口： | 串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 105k |
| 电源电压： | 1.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WQFN 裸露焊盘 |
| 供应商设备封装： | 12-TQFN-EP（4x4） |
| 包装： | 管件 |
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MAX11800–MAX11803
Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I2C/SPI Interface
26
______________________________________________________________________________________
Procedure: The EINT mode reduces TIRQ activity.
During EINT, the MAX11800–MAX11803 idle in a TDM.
TIRQ goes low when a new touch is detected on the
panel. TIRQ stays low for a fixed duration as specified
in the configuration register 0x01, indicating to the AP
that a touch is present and measurements are required.
The AP requests specific panel setups and measure-
ments through the serial interface using panel setup
and conversion commands after TIRQ goes low. Once
a measurement is complete (with CONT = 0), the
MAX11800–MAX11803 check for the continued pres-
ence of a touch and tag the data accordingly. See
Table 7. The duration of this operation is programma-
ble, specified in the
Touch-Detect Pullup Timing
Configuration Register (0x07) section. After the data is
tagged, it is available for readback through the serial
interface. The MAX11800–MAX11803 do not return to
TDM when the panel touch is still present (ETAG = 00,
01), but remain in an LPM awaiting further measure-
ment commands. The devices return to TDM when the
panel touch is no longer present (ETAG = 10) and
return control of the TIRQ interrupt to the TDM circuitry
to await the next touch event.
After a touch is indicated, the AP must continue to issue
conversion commands until the touch is removed, alert-
ing the AP when the panel is released (by ETAG = 10).
The MAX11800–MAX11803 return to TDM and observe
the start of the next touch event. Panel commands
issued with CONT = 1 are not capable of fulfilling this
requirement.
The EINT mode provides the least interrupt activity and
the lowest power consumption. Use EINT mode for
general touch-screen applications and applications
requiring high resolution in space and time. When the
TIRQ bus is shared with other functions, poll the gener-
al status register (0x00) to detect the presence of an
interrupt. See Figure 10.
MEASUREMENT
MTAG[3:2]
X00
Y01
Z1
10
Z2
11
EVENT
ETAG[1:0]
Initial touch (data valid)
00
Midpress (data valid)
01
Release/no touch present
(data invalid)
10
Measurement in progress
(data invalid)
11
Table 7. Measurement and Event Tags
(Edge Interrupt Mode)
DCM SCAN
ETAG = 00
DCM SCAN
ETAG = 00
DCM SCAN
ETAG = 00
TDM
TIRQ
PANEL
TOUCH
BEGINNING OF TOUCH EVENT
END OF TOUCH EVENT
tAP
tSD
READBACK OPERATIONS ARE NOT SHOWN, BUT ARE EXECUTED DURING TDM PERIODS.
SCAN INTERVAL (tAP) IS CONTROLLED BY THE AP AND THE INITIATION OF DM SCAN EVENTS.
SCAN DURATION (tSD) IS A FUNCTION OF THE SCAN TYPE AND CONFIGURATION SETTINGS.
DCM = DIRECT CONVERSION MODE
INITIATED AND CONTROLLED BY
THE AP
Figure 9. Continuous Interrupt Mode (Direct Conversion Mode)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11800EVKIT+ | 功能描述:显示开发工具 MAX11800 Eval Kit RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V |
| MAX11800EWC+T | 功能描述:触摸屏转换器和控制器 SPI 4Ch Touch Screen Controller 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 |
| MAX11800GTC/V+ | 功能描述:触摸屏转换器和控制器 SPI 4Ch Touch Screen Controller 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 |
| MAX11800GTC/V+T | 功能描述:触摸屏转换器和控制器 SPI 4Ch Touch Screen Controller 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 |
| MAX11800TEVS+ | 功能描述:显示开发工具 SPI 4Ch Touch Screen Controller RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V |
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