mxb7846 Maxim Integrated Products, Inc., mxb7846 Datasheet - Page 12

• Manufacturer Part Number: mxb7846
• Description: Mxb7846 2.375v To 5.25v, 4-wire Touch-screen Controller With Internal Reference And Temperature Sensor
• Manufacturer: Maxim Integrated Products, Inc.

Figure 3. Single-Ended Y-Coordinate Measurement
Figure 5. PENIRQ Functional Block Diagram
2.375V to 5.25V, 4-Wire Touch-Screen Controller
with Internal Reference and Temperature Sensor
12
______________________________________________________________________________________
GND
Y+
X+
Y-
TOUCH SCREEN
V
DD
+IN
-IN
12-BIT ADC
REF+
REF
REF-
OPEN CIRCUIT
Y+
X+
Y-
ON
ENABLE
PENIRQ
Figure 4. Ratiometric Y-Coordinate Measurement
100kΩ
+V
DD
PENIRQ
GND
Y+
X+
Y-
V
DD
+IN
-IN
12-BIT ADC
REF+
REF-