CLC-CAPT-PCASM Datasheet | National Semiconductor

.. October 2000 CLC-CAPT-PCASM Data Capture Board User’s Guide CLC-CAPT-PCASM Data Capture Board User’s Guide Section I. Introduction The CLC3790093 Data Capture Board enables simple evaluation of National Semiconductor’s High Speed Analog to Digital Converters (ADCs) and the Diversity Receiver Chip Set (DRCS). The Data Capture Board interfaces the outputs of these devices to the standard serial port available on the back of most Personal puters (PCs). We have provided PC software to control the data capture function and Matlab® scripts for data analysis. A block diagram of the evaluation test bed is shown below. The Data Capture Board contains a field-programmable gate array (FPGA) that controls its operation. An EPROM configures the FPGA after power is applied. The serial interface is provided by a UART (Universal Asynchronous Receiver/Transmitter), an oscillator, and a level translator IC. The captured data is stored in either three 32K x 8 static RAMs (organized into 24-bit words) or in a FIFO containing 32K 18-bit words. LEDs provide a visual indication of activity. DIP switches and a jumper configure several capture functions. . Table of Contents I. Introduction II. Capturing Data from ADC Evaluation Boards III. Capturing Data from the DRCS Evaluation Boards IV. Data Analysis using Matlab Script Files e Data She Section II. Capturing Data from ADC Evaluation Boards Getting Started To use the Data Capture board to capture data from a National Semiconductor Analog to Digital converter, you will need the following hardware, software, and documentation. National Semiconductor High-Speed Converter Evaluation Test Bed CLCXXXX A/D Converter Evaluation Board Digital Receiver Evaluation Board . Data Capture Board © 2000 National Semiconductor Corporation Printed in the U.S.A. http://.national. Data Sheet 4 U . .. (Mineola, NY) passive filters are used for most of our converter testing. 8. Clock Source. If you wish to test the ADC with a fixed clock frequency,...