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AD9877

Analog Devices
Part Number AD9877
Manufacturer Analog Devices
Description Cable Modem
Published Jan 4, 2017
Detailed Description FEATURES Low cost 3.3 V CMOS MxFE™ for MCNS-DOCSIS-, DVB-, DAVIC-compliant set-top box and cable modem applications 232 ...
Datasheet PDF File AD9877 PDF File

AD9877
AD9877


Overview
FEATURES Low cost 3.
3 V CMOS MxFE™ for MCNS-DOCSIS-, DVB-, DAVIC-compliant set-top box and cable modem applications 232 MHz quadrature digital upconverter 12-bit direct IF DAC (TxDAC+®) Up to 65 MHz carrier frequency DDS Programmable sampling clock rates Selectable interpolation filter Analog Tx output level adjust 12-bit, 33 MSPS direct IF ADC Dual 8-bit, 16.
5 MSPS sampling IQ ADCs Two 12-bit Σ-Δ auxiliary DACs Direct interface to AD8321/AD8325 or AD8322/AD8327 PGA cable driver APPLICATIONS Cable modems Set-top boxes Wireless modems 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 required clocks and an output system clock are generated by the phase-locked loop (PLL) from a single crystal or clock input.
The transmit path interpolation fil...


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