- 您现在的位置：买卖IC网 > PDF目录9707 > MAX11801ETC/V+ (Maxim Integrated Products)IC TOUCH SCREEN CTRLR LP 12WQFN PDF资料下载
参数资料
| 型号： | MAX11801ETC/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/59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： | I²C，串行 |
| 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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页
MAX11800–MAX11803
Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I2C/SPI Interface
______________________________________________________________________________________
19
Pressure Measurements
Z1 and Z2 measurements determine the resistance
between the two planes within the panel sensor during
a touch (RTOUCH). Depending on the known physical
properties of the panel, one of two equations extract the
value of RTOUCH, providing information about the pres-
sure and area of the touch applied to the panel. Allow
adequate time for the panel to settle when switching
between position and pressure measurements. Figure 5
shows the physical setup of the panel when performing
pressure measurements.
Z1 and Z2 measurements allow observation of the volt-
age on either side of the effective RTOUCH resistance.
With both Z1 and Z2 measurements available, compute
RTOUCH as follows:
If only a Z1 measurement is available, compute
RTOUCH as follows:
The power applied across the panel during pressure
measurements is greatly dependent on RTOUCH and
the physical position of the touch. The maximum power
dissipation in the panel during a pressure measurement
is approximately PZ = VDD2/RTOUCH. This maximum
R
RX
TOUCH
XPLATE POSITION
NBITX
NBI
=
2
T
TZ
YPLATE
POSITION
NBIT
Z
R
Y
1
11
2
Y
RR
XZ
Z
TOUCH
XPLATE
POSITION
NBITX
=
2
1
2
1
OPERATION
MODE
PSU
PMC CMC TDM
LPM
AVG
FIFO
APER
PUR
PUF
CONT
MTAG
ETAG
X, Y,
Z1, Z2
EINT
CINT
COR
INT
DCM
MAX11800–
MAX11803
Yes
No
Yes
No
Yes
2
Yes
2
Yes
No
ACM
MAX11800/
MAX11801
Yes
1
Yes
1
Yes
1
Yes
No
Yes
No
Yes
AUX
No
Yes
3
No
—
Yes
3
No
Table 2. Operating Modes, Conditions, and Options
1In ACM, the choices are limited to X and Y scan, or X and Y and Z1 scan, or X and Y and Z1 and Z2 scan.
2In DCM, MTAG is always used. For DCM with CONT = 0, the following ETAGs are used: 00 = touch present (data valid), 10 = no
touch present (data may be invalid), 11 = measurement in progress (data invalid). For DCM with CONT = 1, the panel cannot be
scanned for a touch because panel setup switches are configured in a measurement mode; therefore, ETAG = 00 is used if a mea-
surement is not in progress, or ETAG = 11 if a measurement is in progress.
3A separate configuration register for delay time, sampling time, averaging, and ADC resolution settings configures the AUX input.
RTOUCH
X+
Y+
Y-
X-
Z1 PRESSURE MEASUREMENT
ADC
INPUT
PANEL
RTOUCH
VDD
X+
Y+
Y-
X-
Z2 PRESSURE MEASUREMENT
ADC
INPUT
PANEL
VDD
Figure 5. Pressure Measurements
RTOUCH
VDD
X+
Y+
Y-
X-
X POSITION MEASUREMENT
ADC
INPUT
PANEL
RTOUCH
VDD
X+
Y+
Y-
X-
Y POSITION MEASUREMENT
ADC
INPUT
PANEL
Figure 4. Position Measurements
相关PDF资料 |
PDF描述 |
|---|---|
| V24B24M150B | CONVERTER MOD DC/DC 24V 150W |
| M83723/86R1002N | CONN PLUG 2POS STRAIGHT W/SCKT |
| V24B15M150BL3 | CONVERTER MOD DC/DC 15V 150W |
| M83723/75R1415N | CONN PLUG 15POS STRAIGHT W/SCKT |
| MS27473E14F35PD | CONN PLUG 37POS STRAIGHT W/PINS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11801EVKIT+ | 功能描述:数据转换 IC 开发工具 MAX11801 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 |
| MAX11801EWC+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX11801EWC+T | 功能描述:触摸屏转换器和控制器 I2C 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 |
| MAX11801GTC/V+ | 功能描述:触摸屏转换器和控制器 I2C 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 |
| MAX11801GTC/V+T | 功能描述:触摸屏转换器和控制器 I2C 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 |
发布紧急采购，3分钟左右您将得到回复。