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AD9877 - Cable Modem

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.

Features

  • Low cost 3.3 V CMOS MxFE™ for MCNS-DOCSIS-, DVB-, DAVIC-compliant set-top box and cable modem.

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Datasheet preview – AD9877

Datasheet Details

Part number AD9877
Manufacturer Analog Devices
File Size 524.81 KB
Description Cable Modem
Datasheet download datasheet AD9877 Datasheet
Additional preview pages of the AD9877 datasheet.

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Full PDF Text Transcription

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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.
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