參數(shù)資料
型號: TSC2302IRGZR
元件分類: Codec
英文描述: PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC
中文描述: 可編程觸摸屏控制器,立體聲編解碼器
文件頁數(shù): 16/81頁
文件大?。?/td> 1211K
代理商: TSC2302IRGZR
www.ti.com
PENIRQ
+V
CC
V
REF
TEMP1
TEMP0
Ref ON/OFF
1.25/2.5 V
+IN
–IN
+REF
Converter
–REF
2.5 k
5.0 k
5.0 k
7.5 k
Battery
on
Battery
on
GND
IN2
IN1
V
BAT2
V
BAT1
Y–
Y+
X–
X+
0V
11...111
11...110
11...101
00...010
00...001
00...000
1 LSB
O
Input Voltage - A
FS = Full-Scale Voltage = V
REF
1 LSB = V
REF
/4096
FS - 1 LSB
TSC2302
SLAS394–JULY 2003
The ADC is controlled by an ADC control register. Several modes of operation are possible, depending upon the
bits set in the control register. Channel selection, scan operation, averaging, resolution, and conversion rate may
all be programmed through this register. These modes are outlined in the sections below for each type of analog
input. The results of conversions made are stored in the appropriate result register.
Figure 42. Simplified Diagram of the Touch Screen Analog Input Section
Data Format
The TSC2302 output data is in straight binary format as shown in Figure 43. This figure shows the ideal output
code for the given input voltage and does not include the effects of offset, gain, or noise.
Figure 43. Ideal Input Voltages and Output Codes
16
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