AK4533 datasheet(5/40 Pages) AKM

5 / 40 page

[ASAHI KASEI]

July 00

No.

Signal Name

I/O

Description

Audio & Touch Panel Control I/F

Control Data Chip Select

When read/write Touch Screen/Audio Control Data, set CS pin to “H”.

Read/Write operation requires 16 CCLK cycles. CS pin must be set to “L”

once per one Read/Write operation.

CCLK

Audio/Touch Screen Data Control Clock Input

Clock signal used for Touch Screen/Audio control I/F.

CDTI

Touch Screen/Audio Control Data Input

Control data is input to CDTI pin. The device latches data at the rising edge

of CCLK.

CDTO

Touch Screen/Audio Control Data Output

Control data is output through CDTO pin. The device outputs data at the

falling edge of CCLK.

Touch Screen & watch Power-supply

TPVREFIN

Touch Screen Reference Voltage Input

The TPVREFIN voltage is referenced as full scale of Touch Screen A/D

converter(TSADC)

This pin should be connected to 4.7uF and 0.1uF capacitors. Note that

maximum voltage is VA.

BTI_1

Battery level check Input_1

Note that maximum voltage is VA.

BTI_2

Battery level check Input_2

Note that maximum voltage is VA.

TSX_TOP

I/O

Touch Screen X_ TOP plate Voltage supply

Measurement of the position on X axis: This pin supplies the voltage to the

top side of the touch screen(normal mode -> VA, reverse mode -> AGND)

Measurement of the position on Y axis: The Input to Touch Screen A/D

converter(TSADC)

Powerdown Mode : OPEN

Pen Waiting Mode: OPEN

TSX_BTM

I/O

Touch Screen X_ BOTTOM plate Voltage supply

Measurement of the position on X axis: This pin supplies the voltage to the

bottom side of the touch screen(normal mode -> AGND, reverse mode ->

VA)

Measurement of the position on Y axis: OPEN

Powerdown Mode : OPEN

Pen Waiting Mode: This pin is connected to AGND through the resister.

TSY_TOP

I/O

Touch Screen Y_ TOP plate Voltage supply

Measurement of the position on Y axis: This pin supplies the voltage to the

top side of the touch screen(normal mode -> VA, reverse mode -> AGND)

Measurement of the position on X axis: The Input to Touch Screen A/D

converter(TSADC)

Powerdown Mode : OPEN

Pen Waiting Mode: OPEN

TSY_BTM

I/O

Touch Screen Y_ BOTTOM plate Voltage supply

Measurement of the position on Y axis: This pin supplies the voltage to the

bottom side of the touch screen(normal mode -> AGND, reverse mode ->

VA)

Measurement of the position on X axis: OPEN

Powerdown Mode : OPEN

Pen Waiting Mode: Supplies VA.

AK4533 Datasheet(PDF) 5 Page - Asahi Kasei Microsystems

AK4533 Datasheet(HTML) 5 Page - Asahi Kasei Microsystems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Datasheet Download

Link URL