AD8322 Evaluation Board
Introduction
The AD8322 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. A 8-bit serial word determines the desired output gain over a 42 dB range resulting in gain changes of 6 dB/LSB. Full data on the AD8322 and the evaluation board features is available in the AD8322 data sheet available from Analog Devices and should be consulted in conjunction with this Technical Note when using the Evaluation Board. On-board components include an input transformer to convert single ended input signals into a differential signal, a diplexer to allow insertion into a cable modem system, and various options for input and output terminations.
Features
- Full-Featured Evaluation Board for the AD8322
- Multiple On-Board termination and signal conditioning options
- Easy to use PC Parallel port interface
- Windows 9X/NT PC Software for control
- Requires a standard parallel to centronics printer cable
Documentation
- Technical notes are available in Adobe Acrobat Portable Document Format (PDF).
- To view the AD8322 product data sheet, select the link below:
- AD8322 product data sheet
Software
- To download the software, select the link below:
- Software to control the AD8322 Evaluation kit. Download is for Win9x/WinNT:
- AD8322_EVALSW.zip
(zip, 1,397,000 bytes) - NT Users must download and install this file to access the parallel port. Posted with permission of Scientific Software Tools, Inc. (not needed for Win9x):
- port95nt.exe
(exe, 1,610,000 bytes)