ADC Converter Function Pack Design Guide 15
High-Performance, Stand-Alone ADCs for a Variety of Embedded Systems Applications
DEVELOPMENT TOOLS
MXLAB® Screen Captures
The MXLAB software tool provides data acquisition, analysis
and display in a Windows®system environment. Additionally,
analysis can be made of the digital potentiometer shutdown,
reset and daisy-chain operations. The MXLAB software can
determine digital potentiometer settings based on gain
inputs (dB or V/V), filter cutoff frequencies and offset voltage
levels. The MXLAB software can be downloaded free from the
Microchip web site at www.microchip.com.
The MXLAB Windows software contains a variety of tools to
interface to the MXDEV®Analog Evaluation System. These
tools provide different methods for troubleshooting the analog
circuit in either the time or frequency domain:
n Fast Fourier Transform (FFT)
n Histogram
n Oscilloscope
n Real-time numeric
n Real-time stripchart
n Data List
MXDEV® Analog Evaluation System
The MXDEV® Analog Evaluation System is a versatile and
easy-to-use system for evaluating Microchip’s MCP mixed-
signal products. The system is used with a PC and consists
of two parts: the DVMCPA Driver Board with associated MXLAB
software, which provides data acquisition, analysis and display
in a Windows environment; and the DVxxxxx Evaluation Board,
which contains the device to be evaluated.
Evaluation boards are currently available for the MCP3001/02
and MCP3004/08 10-bit ADCs, the MCP3201/02
and MCP3204/08 12-bit ADCs, and the MCP42XXX digital
potentiometers.
For the DV320x A/D converter evaluation boards, the input
signal is either from from an on-board potentiometer or an
external source. In addition, low-pass filters can be inserted
into the signal path for further flexibility. A prototype area
allows the addition of custom circuitry to make a powerful tool
for evaluation and development.
The DV42xxx digital potentiometer evaluation board shows
the MCP42xxx being used in many popular digital applications.
These circuits include programmable gain circuits, a
programmable filter circuit and a programmable circuit. Digital
potentiometer tools within the MXLAB system calculate wiper
values for these circuits based on user inputs of gain (in dB
or V/V), filter cutoff frequency and approximation method,
and offset voltage. In addition, an ADC is on-board that allows
analysis of these circuits, using the time and frequency domain
tools of the MXLAB software.
Microchip Ordering Part Numbers;
DVMCPA MXDEV Analog Evaluation Driver Board Version 1
DV3201A MCP3001/3002 & MCP3201/02 A/D Converter
Evaluation Board
DV3204A MCP3004/3008 & MCP3204/08 A/D Converter
Evaluation Board
DV42xxx MCP42xxx Digital Potentiometer
MXLAB® Software Tool
14 ADC Converter Function Pack Design Guide
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji