Mixed-Signal Front End Set-Top Box, Cable Modem

GENERAL DESCRIPTION The AD9877 is a single-supply set-top box and cable modem mixed-signal front end. The device contains a transmit path interpolation filter, complete quadrature digital upconverter, and transmit DAC. The receive path contains a 12-bit ADC and dual 8-bit ADCs. All internally req

文件：1.09425 Mbytes 页数：36 Pages

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Mixed-Signal Front End Set-Top Box, Cable Modem

文件：1.10081 Mbytes 页数：36 Pages

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亚德诺

Set-Top Box, Cable Modem

文件：491.29 Kbytes 页数：37 Pages

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单电源电缆调制解调器/机顶盒混合信号前端（MxFE®）

AD9877是一款单电源电缆调制解调器/机顶盒混合信号前端，内置发射路径插值滤波器、完整正交数字上变频器和发射DAC。接收路径内置12位ADC和双通道8位ADC。内部需要的所有时钟和输出系统时钟均由PLL从单晶体或时钟输入产生。\n\n 发射路径插值滤波器提供12或16倍的升采样系数，输出信号带宽高达8.4 MHz。直接数字频率合成器（DDS）可以产生最高65 MHz的载波频率，频率调谐分辨率为26位。发射DAC的分辨率为12位，能以高达232 MSPS的采样速率工作。模拟输出可以在0 dB至7.5 dB范围内调整，步进为0.5 dB，以便在输出电平需要降低时保持发射路径信噪比（SN • 低成本3.3 V CMOS MxFE®，用于MCNS-DOCSIS、DVB、DAVIC兼容机顶盒和电缆调制解调器应用\n\n• 232 MHz正交数字上变频器\n\n• 12位直接中频DAC (TxDAC+®)\n\n• 最高65 MHz载波频率DDS\n\n• 可编程采样时钟速率\n\n• 可选插值滤波器;

ADI

亚德诺

Mixed-Signal Front End Set-Top Box, Cable Modem

GENERAL DESCRIPTION The AD9877 is a single-supply set-top box and cable modem mixed-signal front end. The device contains a transmit path interpolation filter, complete quadrature digital upconverter, and transmit DAC. The receive path contains a 12-bit ADC and dual 8-bit ADCs. All internally req

文件：1.09425 Mbytes 页数：36 Pages

AD

亚德诺

Mixed-Signal Front End Set-Top Box, Cable Modem

GENERAL DESCRIPTION The AD9877 is a single-supply set-top box and cable modem mixed-signal front end. The device contains a transmit path interpolation filter, complete quadrature digital upconverter, and transmit DAC. The receive path contains a 12-bit ADC and dual 8-bit ADCs. All internally req

文件：1.09425 Mbytes 页数：36 Pages

AD

亚德诺

Mixed-Signal Front End Set-Top Box, Cable Modem

文件：1.10081 Mbytes 页数：36 Pages

AD

亚德诺

Set-Top Box, Cable Modem

文件：491.29 Kbytes 页数：37 Pages

AD

亚德诺

Set-Top Box, Cable Modem

文件：491.29 Kbytes 页数：37 Pages

AD

亚德诺

Set-Top Box, Cable Modem

文件：491.29 Kbytes 页数：37 Pages

AD

亚德诺