IBM CLC-CAPT-PCASM - Manuals

Page 2 - Operation of Data Capture Board

http://www.national.com 2 Hardware 1. CLC3790093 Data Capture Board (CLC-CAPT-PCASM) 2. CLC Evaluation Board. Several ADC products can be evaluated with this system. Currently, the choicesare the CLC5956 (12-bit 65MSPS ADC), or theCLC5958 (14-bit 52MSPS ADC). Each producthas a unique evaluation boar...

Page 3 - Histogram Mode; Hardware Configuration; Jumpers; WCLK should; DIP Switches; ON; FPGA

3 http://www.national.com complement number can be converted to offset binary byinverting the MSB. This is the first step in the Matlabroutine for FFT analysis. Histogram Mode In the second mode of operation, the “Histogram” mode,the data capture board operates as a hardware histo-grammer. The board...

Page 4 - Power Up the System; Light Emitting Diode (LED) Status Monitors; Software Configuration

http://www.national.com 4 SMA Connectors The output clock SMA connector provides a signal thatcan be used to phase lock a signal source. Thefrequency is that of the input clock signal divided by 2.For example, with an attached CLC5958 ADC evaluationboard at 52MSPS the clock output signal will be a 2...

Page 6 - Select; “Histogram Debug”; When the data capture control panel returns, you

http://www.national.com 6 To look at the data that you have just captured, left clickon the “Plot_Data” button. If you have collected data witha 12-bit ADC at 52MSPS and a -2dBFS sinewave input at5MHz, you will see two’s complement data that looks like this: Next, left click on the 12B_FFT button, a...

Page 7 - Hardware; General Description and Program Options

7 http://www.national.com In this example, we have captured data from a 12-BitADC. Remember that the data that we are plotting is thebin count information. The ADC output codes that wereexercised ranged from code 236 to code 3865. The maxi-mum count was set to 16384 (with DIP switches 4 and 5OFF) an...

Page 11 - ton to perform an FFT on the captured data.; Section IV. Data Analysis Tools

11 http://www.national.com ** From the Windows Start Programs menu, launch the Capture program (it’s inside the C:\nsc folder).Right click inside the Control Panel and selectConfigure I/O and click the appropriate PC COMport button. Next, right click inside the Control Paneland select Configure Capt...

Page 12 - variable

http://www.national.com 12 ** DRCS_Serial “DRCS_ser_fft.m” is the scriptintended for analysis of the DRCS 24-bit serial out-put data. Fsample is set to a default of 52e6/192which is the GSM standard output rate of270.833KS/s. The “search’ option is enabled;therefore, excluding the DC bins, the peak ...

Page 15 - Data Capture Boar

http://www.national.com 15 Customer Design Applications SupportNational Semiconductor is committed to design excellence. For sales, literature and technical support, call theNational Semiconductor Customer Response Group at 1-800-272-9959 or fax 1-800-737-7018. Life Support PolicyNational’s products...