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AK4650 Datasheet(PDF) 8 Page - Asahi Kasei Microsystems |
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AK4650 Datasheet(HTML) 8 Page - Asahi Kasei Microsystems |
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8 / 86 page  [AK4650] MS0502-E-01 2007/04 - 8 - No. Pin Name I/O Function B7 TSVDD - Touch Screen Controller Power Supply Pin A7 XP I/O Touch Screen X+ plate Voltage Supply Pin X axis Measurement: Supplies the voltage. Y axis Measurement: This pin is used as the input for the A/D converter. Pen Pressure Measurement: This pin is the input to the A/D converter at Z1 measurement. VBAT/IN1/IN2 Measurement: OPEN state. Pen Interrupt: pulled-up by an internal resistor (typ.50k Ω). Power-down State: OPEN state. When PDN pin is “L”, XP pin is pulled-up by an internal resistor (typ.50k Ω). A6 YP I/O Touch Screen Y+ plate Voltage Supply Pin Y axis Measurement: Supplies the voltage. X axis Measurement: This pin is used as the input for the A/D converter. Pen Pressure Measurement: Supplies the voltage. VBAT/IN1/IN2 Measurement: OPEN state. Pen Interrupt: OPEN state. Power-down State: OPEN state. B6 XN I/O Touch Screen X − plate Voltage Supply Pin X axis Measurement: Supplies the voltage. Y axis Measurement: OPEN state. Pen Pressure Measurement: Supplies the voltage. VBAT/IN1/IN2 Measurement: OPEN state. Pen Interrupt: OPEN state. Power-down State: OPEN state. A5 YN I/O Touch Screen Y − plate Voltage Supply Pin Y axis Measurement: Supplies the voltage. X axis Measurement: OPEN state. Pen Pressure Measurement: This pin is the input to the A/D converter at Z2 measurement. VBAT/IN1/IN2 Measurement: OPEN state. Pen Interrupt: connected to GND. Power-down State: OPEN state. B5 TSVSS - Touch Screen Controller Ground Pin B4 VBAT I Analog Input Pin for Battery Monitor A4 IN1 I Auxiliary 1 Analog Input Pin B3 TEST2 - Test 2 Pin This pin should be floating. A3 VREF I/O Voltage Reference Input/Output Outputs 2.5V at PMVREF bit = “1”. B2 INTN O Pen Interrupt Output Pin This pin should be pulled up via a 100k Ω resistor. A2 ADEXE I SYNC Signal Input Pin for ADC of Touch Screen Controller C3 NC - No Connect Pin No internal bonding. This pin should be open or connected to the ground. |
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