MXSIGDM Microchip Technology, MXSIGDM Datasheet - Page 6

• Manufacturer Part Number: MXSIGDM
• Description: BOARD DEMO PICTAIL MIXED SIGNAL
• Manufacturer: Microchip Technology
• Series: PICtail™r

Specifications of MXSIGDM

• Main Purpose: Mixed Signal for MCU: ADC, DAC,
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: TX132x,MCP330x,320x,494x,3221,3201,1525,1541
• Primary Attributes: 3 ADCs, 3 DACs, 2 Voltage References, 5V LDO
• Secondary Attributes: DIP Switches, 2 LEDs, PIC16F767
• Processor To Be Evaluated: TC132x, MCP330x, MCP320x, MCP492x, MCP3221, MCP3021, MCP15x
• Interface Type: I2C, SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

ABOUT THIS GUIDE
DS51523A-page 2
Document Layout
This document describes how to use the Mixed Signal PICtail™ Demo Board. The
manual layout is as follows:
• Chapter 1. Product Overview – Important information about the Mixed Signal
• Chapter 2. Installation and Operation – Includes instructions on how to get
• Appendix A. Schematics and Layouts – Shows the schematic and layout
• Appendix B. Bill-Of-Materials (BOM) – Lists the parts used to build the Mixed
• Appendix C. MixedSignal_V100.asm Description – Example “Main” assembly
• Appendix D. DAC_dtmf.asm Source Code – Example assembly source
• Appendix E. MixedSignal_16f767i.lkr Source Code – Linker script file used to
• Appendix F. DTMF Scope Captures – Oscilloscope screen captures of the
• Appendix G. Scope Probe Noise Captures – Isolating scope probe noise is
• Appendix H. Sine Wave and Filtered DTMF Scope Captures – Oscilloscope
• Appendix I. MPLAB® IDE Screen Capture – MPLAB IDE 6.3x was used to gen-
PICtail™ Demo Board.
started with this demo board and a detailed description of each function of the
demo board.
diagrams for the Mixed Signal PICtail™ Demo Board.
Signal PICtail™ Demo Board.
firmware for the PIC16F767-I/SS microcontroller used to demonstrate the various
features of the supported analog products.
firmware used to generate Dual Tone Multiple Frequency (DTMF) signals. This
firmware is utilized by the “Main” firmware, MixedSignal_v100.ASM.
build the example PIC16F767 firmware.
various DTMF tones displaying their FFT to illustrate the quality of the DTMF
tones.
challenging. These scope captures illustrate the difference between using a
standard scope probe and using coaxial cable directly from the board into the
scope.
screen capture of the 32-step sine wave routine and the DTMF waveform. The
DTMF waveform illustrates the non-filtered DAC output and a simple RC-filtered
output.
erate the example source firmware. This screen capture illustrates the tool, the
project files and the included Watch windows.
 2004 Microchip Technology Inc.