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參數(shù)資料
| 型號(hào)： | AK4183VT |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | I2C Touch Screen Controller |
| 中文描述： | 觸摸屏控制器的I2C |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 173K |
| 代理商： | AK4183VT |
ASAHI KASEI
[AK4183]
Control Command
The control command, 8 bits, provided to the AK4183 via SDA, is shown in the following table. This command includes start bit,
channel selection bit, power-down bit and resolution bit. The AK4183 latches the serial command at the rising edge of SCL. Refer
to the detailed information regarding the bit order, function, the status of driver switch, ADC input as shown in Table 3.
BIT
Name
7
S
Start Bit. “1” Accelerate and Axis Command, “0”: Sleep mode Command
6-4
A2-A0
Channel Selection Bits. Analog inputs to the A/D converter and the activated driver switches are
selected. Please see the following table for the detail.
3
X1
Don’t care
2
PD0
Power down bit (refer to power-down control)
1
MODE
Resolution of A/D converter. “0”: 12 bit output “1”: 8 bit output
0
X2
Don’t care
MS0500-E-00
2006/04
12
Function
Input
Status of Driver Switch
ADC input (
AIN)
Reference Voltage
(
VREF)
VREF+
XP
YP
YP
YP
XP
YP
YP
YP
S
0
1
1
1
1
1
1
1
1
A2
1
0
0
0
0
1
1
1
1
A1
1
0
0
1
1
0
0
1
1
A0
1
0
1
0
1
0
1
0
1
XP
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
XN
ON
OFF
ON
ON
ON
OFF
ON
ON
YP
OFF
ON
ON
ON
OFF
ON
ON
ON
YN
AIN+
YP
XP
XP
YN
YP
XP
XP (Z1)
YN (Z2)
AIN-
XN
YN
XN
XN
XN
YN
XN
XN
VREF- Note
XN
YN
XN
XN
XN
YN
XN
XN
Sleep
Accelerate X-Driver
Accelerate Y-Driver
Accelerate Y+,
X- Driver
X-axis
Y-axis
Z1 (Pen Pressure)
Z2 (Pen Pressure)
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
Table 3 Control Command List
Power-down Control
A/D converter and power-down control of touch driver switch are determined by PD0 bit.
PD0
PENIRQN
0
Enabled
Auto power-down Mode
A/D converter is automatically powered up at the start of the conversion, and goes to power-
down state automatically at the end of the conversion. All touch screen driver switches except for
YN switch are turned off and relative pins are open state. Only YN driver switch is turned ON
and YN pin is forced to the ground in this case. PEN interrupt function is enabled except for the
sampling time and conversion time.
1
Disabled
ADC ON Mode
When X-axis or Y-axis are selected on the write operation with PD0 = “1” A/D converter and
touch panel driver are always powered up until next conversion. This mode is effective if more
settling time is required to suppress the electrical bouncing of touch plate.
PEN interrupt function is disabled and PENIRQN is forced to “L” state
Function
Table 4 Powers –Down Control
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4184 | TSC with Keypad Scanner and GPIO Expander |
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| AK4220 | 7:3 Audio Switch and 6:3 Video Switch |
| AK4220VQ | 7:3 Audio Switch and 6:3 Video Switch |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4184 | 制造商:AKM 制造商全稱:AKM 功能描述:Analog I/F IC which includes 4-wire resistive Touch Screen Controller |
| AK4184A | 制造商:AKM 制造商全稱:AKM 功能描述:TSC with Keypad Scanner and GPIO Expander |
| AK4184AEG | 制造商:AKM 制造商全稱:AKM 功能描述:TSC with Keypad Scanner and GPIO Expander |
| AK4184VG | 制造商:AKM 制造商全稱:AKM 功能描述:TSC with Keypad Scanner and GPIO Expander |
| AK4185 | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power Touch Screen Controller with SPI? Interface |
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