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PT2262_08 PDF预览

PT2262_08

更新时间: 2024-01-01 21:20:59
品牌 Logo 应用领域
普诚科技 - PTC 遥控编码器遥控器
页数 文件大小 规格书
20页 459K
描述
Remote Control Encoder

PT2262_08 数据手册

 浏览型号PT2262_08的Datasheet PDF文件第4页浏览型号PT2262_08的Datasheet PDF文件第5页浏览型号PT2262_08的Datasheet PDF文件第6页浏览型号PT2262_08的Datasheet PDF文件第8页浏览型号PT2262_08的Datasheet PDF文件第9页浏览型号PT2262_08的Datasheet PDF文件第10页 
Tel: 886-2-66296288  
Fax: 886-2-29174598  
URL: http://www.princeton.com.tw  
Remote Control Encoder  
PT2262  
IR OPERATION  
In the IR Type of Operation, the functions are similar to the above descriptions except for the output  
waveform that has a carrier frequency of 38KHz. Details are as follows:  
CODE BITS  
The Code Bits are further modulated with a 38KHz carrier frequency and can be “0”, “1” or “f” bit. Their  
waveforms are shown in the diagram below.  
OSC  
160λ  
0
20λ  
1
60λ  
f
Sync  
20λ  
Note : λ = 2 clock lengths  
CODE WORD  
620λ  
A Code Word is made up of code bits and the format is the same as that of the RF Code Word.  
CODE FRAME  
Likewise, a Code Frame is made up of Code Words and the format is the same as that of RF Type of  
Operation.  
OSCILLATOR  
The Oscillator Frequency for the IR Type of Operation is twice the carrier frequency. Thus, the  
oscillator frequency should be kept at 76 KHz. A 430K ~ 560Koscillator resistor between OSC 1 and  
OSC 2 pins is recommended. It should be noted that the carrier is a 50% duty cycle frequency.  
PT2262 V3.8  
- 7 -  
September, 2008  

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