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AD5228BUJ10 PDF预览

AD5228BUJ10

更新时间： 2024-02-25 02:47:57
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管转换器电阻器
页数 文件大小 规格书
20页 337K
描述
IC 10K DIGITAL POTENTIOMETER, PUSH-BUTTON CONTROL INTERFACE, 32 POSITIONS, PDSO8, 2.9 x 3 MM, SOT-23, 8 PIN, Digital Potentiometer

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AD5228BUJ10 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOT-23
包装说明：VSSOP, TSSOP8,.1针数：8
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.85
其他特性：IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY标称带宽：0.6 kHz
控制接口：PUSH-BUTTON转换器类型：DIGITAL POTENTIOMETER
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：2.9 mm功能数量：1
位置数：32端子数量：8
最高工作温度：105 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装等效代码：TSSOP8,.1封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
电源：3/5 V认证状态：Not Qualified
电阻定律：LINEAR最大电阻容差：30%
最大电阻器端电压：3 V最小电阻器端电压：
座面最大高度：1 mm子类别：Digital Potentiometers
标称供电电压：3 V表面贴装：YES
技术：CMOS标称温度系数：35 ppm/ °C
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
标称总电阻：10000 Ω宽度：1.6 mm
Base Number Matches：1

AD5228BUJ10 数据手册

 浏览型号AD5228BUJ10的Datasheet PDF文件第13页浏览型号AD5228BUJ10的Datasheet PDF文件第14页浏览型号AD5228BUJ10的Datasheet PDF文件第15页浏览型号AD5228BUJ10的Datasheet PDF文件第17页浏览型号AD5228BUJ10的Datasheet PDF文件第18页浏览型号AD5228BUJ10的Datasheet PDF文件第19页 
AD5228  
AUDIO AMPLIFIER WITH VOLUME CONTROL  
AUTOMATIC LCD PANEL BACKLIGHT CONTROL  
The AD5228 and SSM2211 can form a 1.5 W audio amplifier  
with volume control that has adequate power and quality for  
portable devices such as PDAs and cell phones. The SSM2211  
can drive a single speaker differentially between Pins 5 and 8  
without any output capacitor. The high-pass cutoff frequency is  
With the addition of a photocell sensor, an automatic brightness  
control can be achieved. As shown in Figure 44, the resistance  
of the photocell changes linearly but inversely with the light  
output. The brighter the light output, the lower the photocell  
resistance and vice versa. The AD5228 sets the voltage level that  
is gained up by U2 to drive N1 to a desirable brightness. With  
the photocell acting as the variable feedback resistor, the change  
in the light output changes the R2 resistance, therefore causing  
U2 to drive N1 accordingly to regulate the output. This simple  
low cost implementation of an LED controller can compensate  
for the temperature and aging effects typically found in high  
power LEDs. Similarly, for power efficiency, a PWM signal can  
be applied at the gate of N2 to switch the LED on and off  
without noticeable effect.  
f
H1 = 1/(2 × π × R1 × C1). The SSM2211 can also drive two  
speakers as shown in Figure 45. However, the speakers must be  
configured in single-ended mode, and output coupling capacitors  
are needed to block the dc current. The output capacitor and  
the speaker load form an additional high-pass cutoff frequency  
as fH2 = 1/(2 × π × R5 × C3). As a result, C3 and C4 must be  
large to make the frequency as low as fH1.  
±2.5V p-p  
R2  
10kΩ  
AUDIO_INPUT  
U1  
5V  
V
DD  
C5  
0.1μF  
5V  
C6  
C7  
0.1μF  
5V  
5V  
PRE  
10μF  
C3  
R2  
PHOTOCELL  
470μF  
C1  
1μF  
R1  
PUSH-UP  
BUTTON  
A
D1  
R1  
1kΩ  
W
10kΩ  
6
V+  
U2  
4
–
R5  
8Ω  
WHITE  
LED  
5
8
PU  
PD  
10kΩ  
5V  
C3  
5V  
B
SSM2211  
0.1μF  
3
GND  
V–  
C44  
470μF  
PUSH-DOWN  
BUTTON  
+
1
V+  
C1  
C2  
U1  
7
N1  
1μF  
0.1μF  
–
R3  
2
AD5228  
4.75kΩ  
R6  
8Ω  
U2  
AD8531  
V
C2  
0.1μF  
DD  
PUSH-UP  
BUTTON  
A
5V  
2N7002  
W
–
+
U3  
AD8591  
PU  
PD  
10kΩ  
B
V–  
R3  
10kΩ  
N2  
+
PRE  
GND  
PUSH-DOWN  
BUTTON  
R4  
10kΩ  
PWM  
2N7002  
Figure 45. Audio Amplifier with Volume Control  
Figure 44. Automatic LCD Panel Backlight Control  
Rev. A | Page 16 of 20  
 
 
 
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