AD8327 Datasheet 5 V CATV Line Driver Coarse Step Output Power Control

Manufacturer: Analog Devices

AD8327 5 v catv line driver coarse step output power control by Analog Devices - Datasheet Preview

Datasheet Details

Part number	AD8327
Manufacturer	Analog Devices
File Size	307.83 KB
Description	5 V CATV Line Driver Coarse Step Output Power Control
Datasheet	AD8327 Datasheet

General Description

–50 VOUT = 60dBmV @ MAX GAIN –55 DISTORTION – dBc The AD8327 is a low-cost, digitally controlled, variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard.

An 8-bit serial word determines the desired output gain over a 48.16 dB range resulting in gain changes of 6.02 dB/major carry.

The AD8327 comprises a digitally controlled variable attenuator of 0 dB to –48.16 dB, which is preceded by a low noise, fixed gain buffer and followed by a low distortion, high power amplifier.

Overview

Key Features

Supports DOCSIS Standard for Reverse Path Transmission Gain Programmable in 6.02 dB Steps over a 48.16 dB Range Low Distortion at 60 dBmV Output.
63 dBc SFDR at 21 MHz.
57 dBc SFDR at 42 MHz Output Noise Level.
47 dBmV in 160 kHz Maintains 75 ⍀ Output Impedance Transmit Enable and Transmit Disable Modes Upper Bandwidth: 160 MHz (Full Gain Range) 5 V Supply Operation Supports SPI Interfaces.

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