WAVEVSN BRD 4.4 National Semiconductor, WAVEVSN BRD 4.4 Datasheet
WAVEVSN BRD 4.4
Specifications of WAVEVSN BRD 4.4
Related parts for WAVEVSN BRD 4.4
WAVEVSN BRD 4.4 Summary of contents
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October 2006 1 ...
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Table of Contents Table of Contents .......................................................................................................................................... 2 1 WaveVision4 System ............................................................................................................................. 3 1.1 What is the WaveVision4 System?................................................................................................. 3 1.2 WaveVision4 System Features ...................................................................................................... 3 1.3 Packing List .................................................................................................................................... 3 1.4 Board Layout Overview .................................................................................................................. 4 1.5 Component Description ...
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... Accordingly, wherever “WaveVision4” is mentioned, it means both “WaveVision4” and “WaveVision4.1”, unless otherwise stated or implied. 1.1 What is the WaveVision4 System? The WaveVision4 system is National Semiconductor’s platform for evaluating analog-to-digital and digital- to-analog converters composed of three core components: A WaveVision4 Data Capture Board • ...
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Board Layout Overview TP4 GND J4 Future Bus ADC CLK ACTIVE J5 WV3 TP7 SW1 TP8 RESET GND WV3_CLK U25 U24 Y1 U1 TP12 LED5 +3.3V J6 JTAG U3 +2.5V J7 SERIAL USB J1 Power PWR ...
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Component Description The following table describes both the on-board connectors and the main components used in the WaveVision4 System shown in Figure 1. Component 1.5.1.1 Description J1 (POWER) +5V Power Supply Connection (See Section 3.2) J2 USB cable Connection. ...
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System Functionality 2.1 System Block Diagram 2.2 General System Overview 2.2.1.1.1 ADC Evaluation Boards The ADC evaluation board (shown in Figure 2) delivers conversion data along with a source-synchronous clock to the Future Bus connector (J4 the ...
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Automatic Device Detection & Configuration The WaveVision4 system provides automatic hardware detection and configuration for the device under test. The FPGA is re-programmed on the fly by the host PC when the WaveVision4 Data Capture Board is turned on, ...
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Memory The WaveVision4 Data Capture Board comes with at least 128k x 36 Mbit, of 200 MHz SRAM. Some versions may have SRAM of different speed or capacity – the amount present on your board can be ...
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Launch the WaveVision4 Software. Start the WaveVision4 software on your computer by selecting the desktop icon “WaveVision4” clicking on the Start button, and selecting Programs -> WaveVision -> WaveVision4 Once the WaveVision4 software is running; 11. Select ...
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WaveVision 1/2/3 Capture and Device board with WaveVision4 Software Connect the older WaveVision capture board to the computer through an RS-232 port and connect the DUT board to the capture board. Upon running the WaveVision4 software, click on the ...
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Java™ Technology The WaveVision4 software uses Sun Microsystems® Java technology. The underlying Java software must be installed on your computer in order for the WaveVision4 software to run. The software can run on top of either the Java Runtime ...
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... The flowchart is targeted for the ADC evaluation boards, but problems 1-3 also apply to the DAC boards. Be sure to refer to your evaluation board manual for solutions also. If you continue to have problems, please contact the National Semiconductor Customer Support Center listed on the last page of your National Semiconductor datasheet. ...
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... Verify that your PC’s USB controller and root hub are functioning properly. If they are not, please consult the documentation for your operating system. 5. Verify that the National Semiconductor WaveVision4 device appears under the Universal Serial Bus Controllers node when turned on not present, check to see if an unknown USB Device appears under the Other devices node ...
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Problem 4: Data is collected from the board, but is all one code. Solutions: 1. Check the Information panel for the dataset to see what clock frequency was measured. If zero frequency was measured, it most likely means your ADC ...
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WaveVision4 Software Basics Please note: The following sections are a brief tour to highlight all of the basic abilities of the WaveVision4 software. More specific documentation is also available within the WaveVision4 software, from the Help menu. 8.1 Basic ...
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Viewing Data Some definitions are in order: A dataset is a set of samples. A view is a way of looking at a dataset; time domain plot (“normal” waveform), frequency domain plot (FFT), and histogram are all different ways ...
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... This plot also shows several statistics on the quality and purity of the collected samples, such as SNR, SINAD, THD, SFDR, and ENOB. These statistics are to be interpreted with the following definitions (which are repeated in every National Semiconductor ADC datasheet): ...
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Effective Number of Bits (ENOB, or Effective Bits) is another method of specifying Signal-to-Noise and Distortion or SINAD. ENOB is defined as (SINAD - 1.76) / 6.02 and says that the converter is equivalent to a perfect ADC of this ...
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Information Viewer The information viewer is not a plot, but it displays a variety of useful information about the dataset, such as the sample rate, and any warnings generated by the software. You may also change the sample rate ...
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Waveform Type The predefined waveform types (sine, sineX/X, sawtooth, pulse and triangle) have the following control panel. 11.1.1 Clock Selection The “Clock Selection” section allows selection of the clock frequency used to send data to the DAC. The valid ...
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Waveform Data Adjust The “Waveform Data Adjust” options allow scaling of the waveform. One of three radio buttons is selected, as well as an option to invert the data. The amplitude of the data can be set from 1 ...
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Invert Data The data is inverted if the box is checked. 11.1.4 Start/Stop When the “Start” button is pressed, the waveform is displayed on the PC screen, and at the DAC output. Changing of all options is disabled until ...
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Waveform type: Pulse The pulse waveform has the following control panel. The only change from the prior control panel is an option to select the duty cycle of the pulse (in place of displaying the samples/cycle). The valid duty ...
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Waveform type: DC The DC waveform is a fixed value output by the DAC. All the waveform options are disabled, except for a single “Value” which is entered in either decimal or hex depending on the checkbox. The “Conv ...
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Waveform type: File The final waveform type is a user defined text file that contains the integer data representation of the waveform. Most of the options have been described above, so only the additional options are noted below. 11.4.1 ...
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... European EMC Directive 89/336/EEC, or for compliance with any other electromagnetic compatibility requirements. National Semiconductor Corporation does not assume any responsibility for use of any circuitry and/or software supplied or described. No circuit patent licenses are implied. ...