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CMX909B 参数 Datasheet PDF下载

CMX909B图片预览
型号: CMX909B
PDF下载: 下载PDF文件 查看货源
内容描述: GMSK分组数据调制解调器 [GMSK Packet Data Modem]
分类和应用: 调制解调器
文件页数/大小: 50 页 / 1302 K
品牌: CMLMICRO [ CML MICROCIRCUITS ]
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GMSK Packet Data Modem  
CMX909B  
Figure 13 Interleaving - Input/Output  
1.5.5.4 Scrambling  
All formatted bits of both Mobitex Data Blocks and Short Data Blocks are passed through a 9-bit  
scrambler. This scrambler is initialised at the beginning of the first data block in every Frame. The  
511-bit sequence is generated with a 9-bit shift register with the output of the 5th and 9th stages  
XOR’ed and fed back to the input of the first stage. The scrambler is disabled during all other tasks,  
apart for TSO.  
ã 2001 Consumer Microcircuits Limited  
34  
D/909B/1  
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