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CX20431-21 参数 Datasheet PDF下载

CX20431-21图片预览
型号: CX20431-21
PDF下载: 下载PDF文件 查看货源
内容描述: AccessRunner ADSL -USB调制解调器设备设置 [AccessRunner ADSL-USB Modem Device Set]
分类和应用: 调制解调器
文件页数/大小: 56 页 / 363 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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AccessRunner ADSL-USB Modem Device Set Data Sheet  
Bit-synchronous mode  
176-pin TQFP  
1.3.3  
CX20431 ADSL Analog Front End Features  
Receive signal path includes:  
Integrated hybrid receiver circuit with programmable gain  
High pass filtering and 27dB of Automatic Gain Control (AGC) to improve signal-to-echo ratio  
14-bit ADC  
Transmit signal path includes:  
30dB of AGC for transmit power control  
Low pass filtering to suppress noise in the receive band  
14-bit DAC  
Independent digital serial data and control interfaces  
Low power tone detection mode  
32-pin TQFP  
1.3.4  
CX20441 ADSL Line Driver Features  
Differential input and output line driver  
Line impedance matching during power-down  
Fixed differential gain  
Low power consumption (0.22 W typical)  
32-pin TQFP  
1.4  
Reference Design  
A reference design for a USB card is available to minimize application design time and costs.  
The card is pretested to pass FCC Part 15 and Part 68 for immediate manufacturing.  
A design package is available in electronic form. The design package includes files for schematics, bill of materials (BOM),  
board layout (Gerber format), and documentation.  
The design can also be used for the basis of a custom design by the OEM to accelerate design completion for rapid market  
entry.  
1-4  
Conexant  
100427B  
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