TerasIC DCC

Overview

The AD/DA Data Conversion Card was created to provide a set of Analog to Digital and Digital to Analog interfaces including an Audio CODEC interface. The High Speed Mezzanine Card (HSMC) can be used to develop DSP applications with Altera Development boards and Terasic Development boards (e.g.DE3) that feature the HSMC connector.

• External Links or Resources
  Altera DE3 - Stratix III High Speed Rapid Prototyping System

Specification

• One High Speed Mezzanine Card (HSMC) connector for interface conversion, which is fully compatible with Altera Development boards and Terasic DE3 host boards.
• External Clock In / Out Interface
• Two 14-bit Analog to Digital (A/D) converter channel with 150MSPS
• Two 14-bit Digital to Analog (D/A) converter channel with 250MSPS
• One Audio CODEC with Line-In, Line-Out, MIC and Headphone
• Size :145mm x 80mm x 18mm (L x W x H)

Block Diagram

Applications

• Low cost oscilloscope and pattern generator
• Communication Transceiver
• Digital signal processing
• Platform for various modulation techniques
• Record and playback sound

Connectivity

 AD/DA Data Conversion Card

• AD/DA Data Conversion Card connection to the Altera Stratix III Development Board

• AD/DA Data Conversion Card connection to the Altera Cyclone III Development Board
  

• AD/DA Data Conversion Card connection to the Altera DE3
  Note. An adapter (SFF) is required to connect ADA-HSMC with DE3. It is bundled in DE3 kit.
  
  

• AD/DA Data Conversion Card connection to the Altera DE4
  Note. One adapters (HFM2) required to connect DVI-HSMC with DE4. They are bundled in DE4 kit.

• AD/DA Data Conversion Card connection to the Altera DE2-115 

Resources

Documents

Title	Version	Size(KB)	Date Added	Download
Data Conversion HSMC reference manual	-	712	2009-06-24

Transmission Demo

The AD/DA Data Conversion CD includes a reference design which contains two sine waves that are generated by two instances of the Altera numerically controlled oscillator (NCO) MegaCore. One of these oscillators is running at 10 times the frequency of the other, but both of them have the same amplitude with each one covering 13 bits of dynamic range. From these blocks, the two sine waves output are converted from two’s complement binary to unsigned binary format which then are added together. The combined sine wave signal of 14-bits dynamic range is sent to a 14-bit D/A converter. The analog output of a D/A converter is connected via SMA Cable with the analog input of a 14-bit A/D converter. The A/D converter’s digital output is looped back to the FPGA device. The A/D is configured by the dip switches to deliver the data in unsigned format. The converted loopback data is captured by an instance of the SignalTap® II logic analyzer in the design for display and analysis.

The following figure below shows a high-level view of the reference design and how it interacts with the D/A and A/D converters on the AD/DA Data Conversion Card in the following sections.

You can use MATLAB software to analyze the data.
The following figure below is generated using SignalTap to capture and analyze data.

Kit Contents

The package of the AD/DA Data Conversion Card includes

• One AD/DA Data Conversion Card
• One System CD
• One Accessories package (screw?standoff?Jumper)