參數(shù)資料
型號(hào)： TSC2302IRGZRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC48
封裝： GREEN, PLASTIC, VQFN-48
文件頁數(shù)： 8/85頁
文件大?。?/td> 1483K
代理商： TSC2302IRGZRG4
www.ti.com
PENIRQ
+VCC
VREF
TEMP1
TEMP0
Ref ON/OFF
1.25/2.5 V
Reference
+IN
–IN
+REF
–REF
Converter
2.5 k
5.0 k
5.0 k
7.5 k
Battery
on
Battery
on
GND
IN2
IN1
VBAT2
VBAT1
Y–
Y+
X–
X+
0V
11...111
11...110
11...101
00...010
00...001
00...000
1 LSB
Output
Code
Input Voltage - A
FS = Full - Scale Voltage = VREF
1 LSB = VREF /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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