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73M1903C-IMR/F PDF预览

73M1903C-IMR/F

更新时间: 2024-02-01 08:02:44
品牌 Logo 应用领域
TERIDIAN 调制解调器消费电路商用集成电路
页数 文件大小 规格书
46页 452K
描述
Modem Analog Front End

73M1903C-IMR/F 技术参数

生命周期:Transferred包装说明:ROHS COMPLIANT, MO-153AC, TSSOP-20
Reach Compliance Code:unknown风险等级:5.59
商用集成电路类型:CONSUMER CIRCUITJESD-30 代码:R-PDSO-G20
长度:6.5 mm功能数量:1
端子数量:20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:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH认证状态:Not Qualified
座面最大高度:1.1 mm最大供电电压 (Vsup):3.6 V
最小供电电压 (Vsup):3 V表面贴装:YES
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
宽度:4.4 mmBase Number Matches:1

73M1903C-IMR/F 数据手册

 浏览型号73M1903C-IMR/F的Datasheet PDF文件第7页浏览型号73M1903C-IMR/F的Datasheet PDF文件第8页浏览型号73M1903C-IMR/F的Datasheet PDF文件第9页浏览型号73M1903C-IMR/F的Datasheet PDF文件第11页浏览型号73M1903C-IMR/F的Datasheet PDF文件第12页浏览型号73M1903C-IMR/F的Datasheet PDF文件第13页 
73M1903C  
Modem Analog Front End  
DATA SHEET  
frame after enabling FSD must be Data. For the two daisy chained devices, the data/control frames are  
32 bits. The first 16 bits go to the first device; the next 16 bits go to the second device in the chain, as  
timed by FSD of the first device. For four daisy-chained devices, the data/control frames are 64 bits. The  
first 16 bits go to the first device in the chain; the next 16 bits go to the second device in the chain as  
started by FSD of the first device, etc. FSD is always ”Late Type” frame sync.  
Up to eight 73M1903C devices may be daisy-chained if the control frame sync is placed at the middle of  
the data frame sync interval. Four devices may be daisy-chained if the control frame sync is placed at the  
1/4 of the data frame sync interval. In all cases involving slave and daisy chain operation, only hardware  
controlled Control Frames can be supported. Software requested control frames are not allowed.  
In slave mode the relationship of Fs and Fsclk is Fsclk/Fs, with a range of from 96 to 256 SCLKs per Fs.  
Again, the host controls the relationship of FS to SCLK, with the condition that Fsclk>750kHz and  
Fsys=4608*Fs. The 79M1903C PLL must be programmed to generate Fsys with those conditions. To  
program the 73M1903C NCOs, OSCIN (Fsclk)=SCLK=Fref when Pdvsr=1 and Prst=0 in the calculations.  
Fsys in the previous discussion is Fvco in the calculations which is equal to 4608*Fs. For example, two  
typical cases are Fsclk=256*Fs and Fsclk=144*Fs.  
For the case when Fsclk=256*Fs and Fs=8kHz, the 79M1903C PLL has to be set to  
Fsys=4608*Fs=36.864MHz, and Sclk=256*8kHz=2.048MHz. Therefore Ndvsr=36.864/2.048=18 (12h)  
and Nrst=0  
For the case when Fsclk=144*Fs and d Fs=8kHz, the 79M1903C PLL has to be set to  
Fsys=4608*Fs=36.864MHz and Sclk=144*8kHZ=1.152MHz. Therefore Ndvsr=36.864/1.152=32 (20h)  
and Nrst=0  
Page: 10 of 46  
© 2005-2008 TERIDIAN Semiconductor Corporation  
Rev 4.3  

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