參數(shù)資料
型號(hào): APT7843
廠商: Anpec Electronics Corporation
英文描述: Touch Screen Controller
中文描述: 觸摸屏控制器
文件頁(yè)數(shù): 17/18頁(yè)
文件大小: 622K
代理商: APT7843
Copyright ANPEC Electronics Corp.
Rev. A.8 - Apr., 2002
APT7843
www.anpec.com.tw
8
FIGURE 2. Simplified Diagram of Analog Input
TABLE I. Input C onfiguration, Single-Ended Reference Mode (SER/ DFR HIGH).
A2
A1
A0
X+
Y+
IN3
IN4
-IN
X SWITCHES Y SWITCHES
+REF
-REF
001
+IN
GND
OFF
ON
+VREF
GND
1
0
1
+IN
GND
ON
OFF
+VREF
GND
0
1
0
+IN
GND
OFF
+VREF
GND
1
0
+IN
GND
OFF
+VREF
GND
TABLE II. Input Configuration, Differential Reference Mode (SER/ DFR LOW).
A2
A1
A0
X+
Y+
IN3
IN4
-IN
X SWITCHES Y SWITCHES
+REF
-REF
0
1
+IN
-Y
OFF
ON
+Y
-Y
1
0
1
+IN
-X
ON
OFF
+X
-X
0
1
0
+IN
GND
OFF
+VREF
GND
1
0
+IN
GND
OFF
+VREF
GND
+IN
-IN
+REF
CONVERTER
-REF
X+
X-
Y+
Y-
IN3
IN4
GND
PENIRQ
+Vcc
VREF
A2-A0
(Shown 001B)
SER/DFR
(Shown HIGH)
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