AK4650 Datasheet, PDF (8/86 Pages) Asahi Kasei Microsystems – 16Bit ΔΣ CODEC with MIC/HP/SPK-AMP & TSC

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