Datasheet4U Logo Datasheet4U.com

AD8321 - Gain Programmable CATV Line Driver

General 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

Key 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.

📥 Download Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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