参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 144/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description - System Functions
10.10 Touchpen Interface
The touchpen interface controls a resistive touchpen. It has the following features:
Low Power Pen Detect
Measure pen X,Y position
Measure pen pressure (Z-position)
Interrupt, if X,Y,Z data is available; one dedicated output – CURR4_GPIO4 can be configured to be used as
touchpen interrupt output and/or standard interrupt output XINT
The conversion interval can be adjusted
Up to 16 ADC conversion can be averaged internally
The sample time of the ADC can be adjusted
The pin CURR3_GPIO3 can be configured to enable/disable the ADC conversion (useful if the processor updates
the LCD to avoid parallel reading of the touchpen position)
The touchpen interface shares the pins with the SPDIF output and the I2S Output 3. If the touchpen interface is used,
the SPDIF and the I2S Output 3 cannot be used (and has to be disabled).
Note: The touchpen interface and the ‘General Purpose 10 Bit ADC’ can be used at the same time.
Figure 59. Touchpen Block diagram
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