- 您现在的位置：买卖IC网 > PDF目录1956 > MXB7846EUE+T (Maxim Integrated Products)IC CNTRLR TOUCH RES 16TSSOP PDF资料下载
参数资料
| 型号： | MXB7846EUE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/24页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR TOUCH RES 16TSSOP |
| 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： | 2,500 |
| 类型： | 温度传感器 |
| 输入类型： | 模拟 |
| 输出类型： | 数字 |
| 接口： | 4 线 |
| 电流 - 电源： | 950µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
MXB7846
2.375V to 5.25V, 4-Wire Touch-Screen Controller
with Internal Reference and Temperature Sensor
______________________________________________________________________________________
13
The first method performs pressure measurements
using a known X-plate resistance. After completing
three conversions (X-position, Z1, and Z2), use the fol-
lowing equation to calculate RTOUCH:
The second method requires knowing both the X-plate
and Y-plate resistance. Three conversions are required in
this method: the X-position, Y-position, and Z1-position.
Use the following equation to calculate RTOUCH:
Internal Temperature Sensor
The MXB7846 provides two temperature measurement
options: single-ended conversion and differential con-
version. Both temperature measurement techniques rely
on the semiconductor junction’s temperature character-
istics. The forward diode voltage (VBE) vs. temperature
is a well-defined characteristic. The ambient tempera-
ture can be calculated by knowing the value of VBE at a
fixed temperature and then monitoring the change in
that voltage as the temperature changes. The single
conversion method requires calibration at a known tem-
perature, but only needs a single reading to calculate
R
Z
X
Z
R
Y
TOUCH
XPLATE
POSITION
YPLATE
POSITION
=
×
×
×
11
4096
1
4096
RR
XZ
Z
TOUCH
XPLATE
POSITION
=
() ×
×
4096
1
2
1
RTOUCH
OPEN CIRCUIT
FORCED
LINE
SENSE LINE
MEASURE Z2
MEASURE Z1
X+
X-
Y+
+
-
Y-
RTOUCH
OPEN CIRCUIT
FORCED
LINE
SENSE
LINE
X+
X-
Y+
Y-
MEASURE X- POSITION
X- POSITION
RTOUCH
OPEN CIRCUIT
FORCED
LINE
SENSE
LINE
X+
X-
Y+
Y-
V
+
-
V
+
-
V
Figure 7. Pressure Measurement Block Diagram
NO RESPONSE TO TOUCH
MASK PENIRQ
PENIRQ ENABLED
tTOUCH
SCREEN TOUCHED HERE
INTERRUPT PROCESSOR
S
A2
A1
A0
M
S/D
PD1
PD0
1
2
3
4
5
6
7
8
1
2
3
12
13141516
PENIRQ
CS
DIN
DCLK
Figure 6.
PENIRQ Timing Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| MXD1210CSA-T | IC CTRLR NV RAM CMOS LOPWR 8SOIC |
| MXL1344ACAG+T | IC CABLE TERM MP 24-SSOP |
| MXL1543BCAI+ | IC TXRX MULTIPROTOCOL 28-SSOP |
| MXL1543CAI+T | IC TXRX MULTIPROTOCOL 28-SSOP |
| NB4L858MFAG | IC CROSSPOINT SWITCH DUAL 32LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MXB7846EVC16 | 功能描述:数据转换 IC 开发工具 MXB7846C16 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 |
| MXB7846EVKIT | 功能描述:开发板和工具包 - 其他处理器 Programmers, Development Systems RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: |
| MXB79 | 制造商:MICRO-ELECTRONICS 制造商全称:Micro Electronics 功能描述:1.90 X 3.97MM ROUND RECTANGULAR BARLED LAMP |
| MXB9733H12B-BSR | 制造商:Mechatronics Fan Group 功能描述: |
| MXB9733H24B-BSR | 制造商:Mechatronics Fan Group 功能描述: |
发布紧急采购，3分钟左右您将得到回复。