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AK4182VN Datasheet(PDF) 3 Page - Asahi Kasei Microsystems |
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AK4182VN Datasheet(HTML) 3 Page - Asahi Kasei Microsystems |
3 / 18 page ASAHI KASEI [AK4182] MS0411-E-00 2005/08 3 Pin/Function No. Signal Name I/O Description 1 VCC - Power Supply 2 XP I/O Touch Screen X+ plate Voltage supply X axis Measurement: Supplies the voltage to X+ position input Y axis Measurement: This pin is used as the input for the A/D converter Pen Pressure Measurement: This pin is the input for the A/D converter at Z1 measurement. Temperature/VBAT/IN Measurement: OPEN state Pen Waiting State: Pulled up by an internal resistor (typ.50K Ω). 3 YP I/O Touch Screen Y+ plate Voltage supply Y axis Measurement: Supplies the voltage to Y+ position input X axis Measurement: This pin is used as the input for the A/D converter Pen Pressure Measurement: Supplies the voltage. Temperature/VBAT/IN Measurement: OPEN state Pen Waiting State: OPEN state 4 XN I/O Touch Screen X- plate Voltage supply X axis Measurement: Supplies the voltage to X- position input Y axis Measurement: OPEN state Pen Pressure Measurement: Supplies the voltage. Temperature/VBAT/IN Measurement: OPEN state 5 YN I/O Touch Screen Y- plate Voltage supply Y axis Measurement: Supplies the voltage to Y- position input X axis Measurement: OPEN state Pen Pressure Measurement: This pin is the input for the A/D converter at Z2 measurement. Temperature/VBAT/IN Measurement: OPEN state Pen Waiting State: connected to GND. 6 GND - Ground 7 VBAT I Analog Input for Battery Monitor 8 IN I Auxiliary Analog Input 9 VREF I/O Voltage Reference Input/Output 2.5V reference voltage output at PD1 = “1”. Voltage reference input at PD1 = “0”. 10 IOVDD Digital I/O Power Supply 11 PENIRQN O Pen Interrupt Output This pin is “L” during the pen down on pen interrupt enable state with CSN =“H” otherwise this pin is “H”. This pin is “H” during pen interrupt disable state with the CSN = “H” regardless pen touch. See Power-down Control and Pen Interrupt for the reference. 12 DOUT O Serial A/D Data Output Output A/D data serially at the falling edge of DCLK. MSB is output at the falling edge of BUSY signal. Output “L” at CSN= “L” during A/D data does not output. This pin is Hi-Z state at CSN=”H” 13 BUSY O BUSY Output This pin goes to low at CSN = “L”. BUSY signal is “H” only for the period between the falling edge of 8 th DCLK and the falling edge of 9th DCLK. This pin is Hi-Z state at CSN= “H” 14 DIN I Serial Data Input Inputs 8-bit control command data serially when CSN= “L” AK4182 latches at the rising edge of DCLK. Must keep “L” while not issuing commands. 15 CSN I Chip Select Input Enables writing data to the registers when CSN= “L”. 16 DCLK I External Clock Input |
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