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AD8321 - Gain Programmable CATV Line Driver

Datasheet Summary

Description

The AD8321 is a low cost digitally controlled variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed

Features

  • Linear in dB Gain Response Over >53 dB Range Drives Low Distortion >11 dBm Signal into 75.
  • Load:.
  • 53 dBc SFDR at 42 MHz Very Low Output Noise Level Maintains Constant 75.
  • Output Impedance Power-Up and Power-Down Condition No Line Transformer Required Upper Bandwidth: 235 MHz (Min Gain) 9 V Single Supply Operation Power-Down Functionality Supports SPI Interface Low Cost.

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Datasheet preview – AD8321

Datasheet Details

Part number AD8321
Manufacturer Analog Devices
File Size 864.65 KB
Description Gain Programmable CATV Line Driver
Datasheet download datasheet AD8321 Datasheet
Additional preview pages of the AD8321 datasheet.

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Full PDF Text Transcription

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a FEATURES Linear in dB Gain Response Over >53 dB Range Drives Low Distortion >11 dBm Signal into 75 � Load: –53 dBc SFDR at 42 MHz Very Low Output Noise Level Maintains Constant 75 � Output Impedance Power-Up and Power-Down Condition No Line Transformer Required Upper Bandwidth: 235 MHz (Min Gain) 9 V Single Supply Operation Power-Down Functionality Supports SPI Interface Low Cost APPLICATIONS Gain Programmable Line Driver HFC High Speed Data Modems Interactive CATV Set-Top Boxes CATV Plant Test Equipment General Purpose IF Variable Gain Block Gain Programmable CATV Line Driver AD8321 FUNCTIONAL BLOCK DIAGRAM VCC GND VIN+ VIN– AD8321 INV ATTENUATOR CORE PWR AMP REVERSE AMP VOUT DATADASTHAIFLTARTECGHISTER DATA SHIFT REGISTER POWERDOWN/ SWITCH INTER PD DATEN CLK SDATA DI
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