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AD7873ARQ

更新时间： 2024-02-01 04:05:04
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
28页 831K
描述
Touch Screen Digitizer

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AD7873ARQ 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SSOP
包装说明：SSOP,针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5
其他特性：FUNCTIONALLY IT OPERATES FROM 2.2 TO 5.25V商用集成电路类型：CONSUMER CIRCUIT
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：4.9022 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.7526 mm最大压摆率：0.38 mA
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：2.2 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：3.9116 mm
Base Number Matches：1

AD7873ARQ 数据手册

 浏览型号AD7873ARQ的Datasheet PDF文件第4页浏览型号AD7873ARQ的Datasheet PDF文件第5页浏览型号AD7873ARQ的Datasheet PDF文件第6页浏览型号AD7873ARQ的Datasheet PDF文件第8页浏览型号AD7873ARQ的Datasheet PDF文件第9页浏览型号AD7873ARQ的Datasheet PDF文件第10页 
AD7873  
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS  
16  
15  
14  
13  
12  
1
2
3
+V  
DCLK  
CS  
CC  
16 15 14 13  
X+  
Y+  
X–  
Y–  
DIN  
1
PIN 1  
INDICATOR  
12  
AUX  
Y+  
X+  
+V  
AD7873  
4
5
6
7
8
BUSY  
DOUT  
PENIRQ  
2
3
4
11  
10  
9
V
REF  
AD7873  
TOP VIEW  
(Not to Scale)  
TOP VIEW  
+V  
CC  
CC  
(Not to Scale)  
DCLK  
PENIRQ  
11  
10  
9
GND  
V
+V  
CC  
5
6
7
8
BAT  
AUX  
V
REF  
Figure 4.QSOP/TSSOP Pin Configuration  
Figure 3. LFCSP Pin Configuration  
Table 4. Pin Function Descriptions  
Mnemonic Function  
+VCC  
Power Supply Input. The +VCC range for the AD7873 is from 2.2 V to 5.25 V. Both +VCC pins should be connected directly  
together.  
X+  
Y+  
X–  
X+ Position Input. ADC Input Channel 1.  
Y+ Position Input. ADC Input Channel 2.  
X– Position Input.  
Y–  
Y– Position Input. ADC Input Channel 3.  
GND  
Analog Ground. Ground reference point for all circuitry on the AD7873. All analog input signals and any external reference  
signals should be referred to this GND voltage.  
VBAT  
AUX  
VREF  
Battery Monitor Input. ADC Input Channel ꢀ.  
Auxiliary Input. ADC Input Channel 5.  
Reference Output for the AD7873. Alternatively an external reference can be applied to this input. The voltage range for the  
external reference is 1.0 V to +VCC. For specified performance, it is 2.5 V on the AD7873. The internal 2.5 V reference is  
available on this pin for use external to the device. The reference output must be buffered before it is applied elsewhere in a  
system. A 0.1 µF capacitor is recommended between this pin and GND to reduce system noise effects.  
PENIRQ  
DOUT  
Pen Interrupt. CMOS logic open drain output (requires 10 kΩ to 100 kΩ pull-up resistor externally).  
Data Out. Logic Output. The conversion result from the AD7873 is provided on this output as a serial data stream. The bits are  
clocked out on the falling edge of the DCLK input. This output is high impedance when CS is high.  
BUSY  
DIN  
BUSY Output. Logic Output. This output is high impedance when CS is high.  
Data In. Logic Input. Data to be written to the AD7873 control register is provided on this input and is clocked into the  
register on the rising edge of DCLK (see the Control Register section).  
CS  
Chip Select Input. Active Low Logic Input. This input provides the dual function of initiating conversions on the AD7873 and  
enabling the serial input/output register.  
DCLK  
External Clock Input. Logic Input. DCLK provides the serial clock for accessing data from the part. This clock input is also used  
as the clock source for the AD7873 conversion process.  
Rev. D | Page 7 of 28  
 
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