AD9877 Datasheet - Analog Devices

AD9877 Cable Modem

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 out.

AD9877 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

AD9877-AnalogDevices.pdf